The correct answer is A) Numbats. Numbats are the only termitivorous marsupial, meaning they are the only Australian animal that exclusively eats termites. They consume up to 20,000 termites a day.
Numbats are small, marsupial mammals found in Australia. They are diurnal and their diet consists almost exclusively of termites. They have a long, sticky tongue which they use to slurp up their prey. They are also able to detect the presence of termites through smell. Numbats are currently listed as endangered due to habitat loss and the introduction of predators such as foxes and cats.
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Which of the following levels of biological organization is the most inclusive?
Select one:
a. A tissue.
b. An organ.
c. An organism.
d. An organ system.
e. A cell.
Answer:
C. An organism
Explanation:
The correct order from least inclusive to most inclusive is: Cell (basic unit of life), tissue (made up of cells), an organ (made up of tissues), an organ system (made up of organs), and an organism (made up of organ systems).
1. what property or properties of gram-negative organisms would likely make them more resistant to crystal violet and bile salts than gram-positive organisms?
Answer:
The external lipopolysaccharide membrane makes gram-negative organisms resistant to crystal violet and bile salts.
The peripheral nervous system is divided into
A. sympathetic division and parasympathetic division.
B. brain and spinal cord.
C. somatic system and autonomic system.
D. motor division and sensory division.
Option C. The peripheral nervous system is divided into the somatic system and the autonomic system.
The somatic system is responsible for voluntary movements and sensory inputs, while the autonomic system is responsible for involuntary functions, such as heart rate, digestion, and respiration. The autonomic system is further divided into the sympathetic division and the parasympathetic division, which have opposing effects on various physiological functions. The sympathetic division prepares the body for "fight or flight" responses, while the parasympathetic division is responsible for "rest and digest" functions. The brain and spinal cord are part of the central nervous system, which is distinct from the peripheral nervous system. The motor division and sensory division are subdivisions of the somatic system, which is only one part of the peripheral nervous system.The peripheral nervous system (PNS) is the part of the nervous system that lies outside of the brain and spinal cord. It includes all of the nerves that carry signals between the central nervous system (CNS) and the rest of the body. The PNS is divided into two major subdivisions: the somatic system and the autonomic system.Sure, I'd be happy to provide more explanation.The somatic system is responsible for voluntary movements and sensory inputs. It includes all of the nerves that control the skeletal muscles, as well as the sensory nerves that carry information from the senses (such as touch, pain, and temperature) to the CNS. The somatic system is further divided into the motor division and the sensory division.
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the fossil of what reptile was used to support the idea of a supercontinent gondwana? multiple choice pterosauris mesosaurus serpentina glossopteris
Mesosaurus fossils were used to support the theory that Gondwana was a supercontinent.
Why do biologists examine fossils?Body fossils are examples of once-living objects that provide information about where and when life existed. Due to the fact that they preserve a brief period of time when an organism was still alive, trace fossils are useful because they "animate" the extinct animals or plants.
What is the discussion of fossil biology?A fossil is an organism or an organism's activity that has been preserved as a cast, impression, or mold that has been partially or completely calcified. In the lack of intact soft tissues, a fossil provides palpable, physical proof of ancient life and has served as the cornerstone of the idea of evolution.
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How are Earth’s history and history of life related?
Answer:
The history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior.
this model of the cell cycle includes two arrows that each represent a process in the cycle. what do the two arrows represent?
The arrow 1 in the given image represents the interphase of cell cycle while the arrow 2 represents the M phase.
Interphase is the phase of cell cycle which occupies most of the time of a cell and is composed of three sub-stages: Gap 1 phase, Synthesis phase and Gap 2 phase. These are the phase where a cell prepared itself for the M phase.
The M phase is the phase of actual cell division where mitosis occurs. The duplicated genetic material is equally divided into the two progenies in this phase. The M phase is followed by cytokinesis where cytoplasm of the cell gets divided.
The give question is incomplete, the complete question is:
The model of the cell cycle in the given image includes two arrows that each represent a process in the cycle. what do the two arrows represent?
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Draw a model of how the organism has changed in the last 50 years as a result of environmental changes.
Environmental changes can lead to evolution and adaptation of organisms, such as changes in physical and behavioral traits, but not all organisms may be able to adapt, leading to declines in population or extinction.
What are some examples of physical and behavioral changes that organisms may undergo in response to environmental changes?Organisms may develop new physical features, alter their metabolism, or change their behaviors to adapt to environmental changes.
How does environmental change affect the survival of organisms?Environmental change can put pressure on organisms, and those that are unable to adapt may experience declines in population or even extinction, while those that can adapt may survive and thrive.
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Except for __________, the following statements about blood are true.a.The viscosity is three to five times greater than water.b The pH is slightly acidic.c. It contains about 55% plasma.D. It contains dissolved gases.
Except for the acidic nature of blood, the given statements about blood are true. This is because blood is basic or alkaline. So option b is correct.
The blood is considered the suspension solution of three main components white blood cells, platelets, and red blood cells. Since they have different components like proteins, electrolytes, and some macromolecules in addition to water. So they are considered highly viscous than water.
Their normal pH usually ranges between 7.35 to 7.45. So this pH is greater than 7 and considered slightly basic or alkaline. About 55% of blood is considered plasma and the rest 45% is occupied by platelets, RBCs, and WBCs. They also contain important dissolved gases like CO₂ and O₂. So the required option is b.
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What strategies/behaviors could the american desert hares use to survive a period of unusually cold weather?
In order to defend themselves from the cold and wind, desert hares might find refuge in burrows or rocky outcroppings.
How do girls get their periods?If you use the restroom during your period, you can find red or brown blood on your underwear or in the toilet. Before your period stops, you might only notice a few spots since you bleed so little. Alternatively, before it stops, your bleeding can begin light, increase heavy, and then lighten up again.
How come girls have periods?The lining of the uterus thickens as a result of these hormones. The lining has developed to the point where a fertilized egg can adhere and begin to develop. if no egg has been fertilized.
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Which of these molecules is incorrectly paired with a source? A.)interferons - virus-infected cells B.)chemokines - cytotoxic T cells C.)antibodies - B cells D.)lysozyme - tears E.)cytokines - helper T cells
The molecule that is incorrectly paired with a source is chemokines - cytotoxic T cells. Here option B is the correct answer.
Chemokines are small signaling molecules that are secreted by cells and serve to attract immune cells to a site of infection or injury. While chemokines can attract various immune cells, including T cells, they are not specifically associated with cytotoxic T cells.
Cytotoxic T cells, also known as CD8+ T cells, are a type of immune cell that can directly kill infected or cancerous cells. They do this by recognizing specific proteins on the surface of the target cell and inducing cell death. Cytotoxic T cells are critical for eliminating virus-infected cells and some types of tumors.
Therefore, the correct pairing should be B) interferons - virus-infected cells, C) antibodies - B cells, D) lysozyme - tears, and E) cytokines - helper T cells.
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A scientist inserts do you luciferase Gene
into the DNA of cells from another organism. If these cells produce light the scientist knows what happened?
A scientist inserts the luciferase gene into the DNA of cells from another organism. If these cells produce light, the scientist knows that The luciferase gene was transcribed and translated. option 1)
The class of oxidative enzymes that cause bioluminescence are collectively referred to as luciferases, which are often differentiated from photoproteins. Raphael Dubois, who coined the terms luciferin and luciferase for the substrate and enzyme, respectively, was the first to use the name.
The origin of both phrases is the Latin word lucifer, which means "lightbearer" and is itself a derivative of the Latin words for "light" (lux) and "to convey or carry" (ferre).
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Full Question : A scientist inserts the luciferase gene into the DNA of cells from another organism. If these cells produce light, the scientist knows that which of the following occurred?
The luciferase gene was transcribed and translated.A relatively stable internal environment, within limitsinformation in the cow's chromosomesWhich is closest in physical proximity to the nucleic acid of a virus? spike; capsid; envelope. capsid
The capsid is physically closest to a virus's nucleic acid. A protein core is enclosed within the capsid of some of the more complex viruses.
In a virus, where is the nucleic acid located?Structure of a virus. The capsid, a protein coating, surrounds a single nucleic acid molecule in the virion of simpler viruses; The nucleocapsid is made up of the capsid and the nucleic acid inside. A protein core is enclosed within the capsid of some of the more complex viruses.
Is the viral capsid and envelope the same thing?The fact that the capsid is a protein-based coat and the envelope is a lipid-based membrane is the primary distinction between the two structures. While enveloped viruses only have an envelope, all virion particles have capsids.
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put the animals from the food web into food pyramid (producer, primary consumer, secondary consumer, and tertiary consumer)
Trees, grass and shrub are primary consumers. Grasshopper, giraffe, rhino are secondary consumer. Lion, Vulture and Leopard are Tertiary consumer.
What are Consumers?The second trophic level consists of primary consumers. Herbivores is another name for them. They only consume primary producers, such as plants or algae.
White-tailed deer, which graze on prairie grasses, and zooplankton, which consume minute algae in the water, are two other examples of main consumers.
The secondary consumers come next; they eat the prime consumers. The majority of secondary consumers are carnivores, which comes from the Roman phrase for "meat eaters."
Therefore, Trees, grass and shrub are primary consumers. Grasshopper, giraffe, rhino are secondary consumer. Lion, Vulture and Leopard are Tertiary consumer.
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Of the following choices, which can be a product of a catabolic reaction?a. a nucleic acid like RNAb. a lipid like cholesterolc. an amino acid like tryptophand. a complex carbohydrate like cellulosee. a motor protein like myosin
An amino acid like tryptophan can be a product of a catabolic reaction.
The correct option is C.
What is a catabolic reaction example?The digestion of food, testing phase, and glycolysis are some of the most well-known instances of catabolic processes. Large organic molecules including carbohydrates, proteins, and lipids are broken down into smaller ones during these processes.
What does a catabolic reaction serve as?The energy and materials required by anabolic processes are produced by catabolic reactions. The precise nature of these catabolic events varies from organism to organism; organisms may be characterized based on their main nutritional groups—their sources of energy and carbon.
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The complete question is -
Of the following choices, which can be a product of a catabolic reaction?
A- a nucleic acid like RNA
B- a lipid like cholesterol
C-an amino acid like tryptophan
D-a complex carbohydrate like cellulose
E- a motor protein like myosin
what is the biggest shark in the world that is extinct
The largest extinct shark in history was the Carcharocles megalodon. The earliest megalodon fossils, identified as Otodus megalodon (sometimes called Carcharodon shark or megalodon), date to 20 million years ago.
The gigantic shark ruled the waters for the following 13 million years before going extinct only 3.6 million years ago. There are persistent internet reports that megalodons still exist and are swimming in the waters today.
Yet, that is false. Megalodons no longer exist. About 3.5 million years ago, they perished. Although whale sharks are the biggest sharks living, megalodons are bigger. As sharks lack bones in contrast to other fish, no megalodon shark "skeleton" has ever been discovered. The reduction in their habitat caused by global cooling led to the demise of megalodons.
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what is the most likely cause of wheezing and hives
Epinephrine: Anaphylaxis, a life-threatening condition brought on by severe acute allergic reactions, can occur. Infections are the most frequent reason for hives.
Hives, face, mouth, or throat swelling, shortness of breath, wheezing, vomiting, and low blood pressure are a few symptoms. Urticaria is frequently brought on by foods including eggs, almonds, and shellfish. Aspirin and certain antibiotics, particularly penicillin and sulfa, are common causes of hives. The common cold and other viral infections are among the illnesses that can cause hives. Typical causes include an allergy attack, an infection, or a physical obstruction like a tumour or an inhaled foreign object.
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the av node releases an electrical impulse to cause the contraction of which chambers of the heart?
This electrical impulse causes the two atria to contract as it travels through them, pumping blood into the right and left ventricles.
What happens to the electrical impulse after it leaves the AV node?The electrical current then travels through the AV node, down the conduction pathway, through a passageway known as the bundle of His, and into the ventricles. For the purpose of stimulating the right and left ventricles electrically, the bundle of His splits into right and left channels.
Where does the AV node constrict the heart?The contraction of the atria is brought on by an electrical signal produced by the SA (sinoatrial) node. The lower heart chambers (ventricles), which get the signal through the AV (atrioventricular) node, then contract.
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how may a change in the subunits of carbohydrates lead to changes in its structure or function?.
The change in subunits or the direction of the bonds results in the formation of a different carbohydrate and thus a change in structure and function is seen.
The carbohydrates which are also known as the sugars are macromolecules which are required by the body as they are a very essential source of energy for the body. The carbohydrates basically exist as either monosaccharides, disaccharides or the polysaccharides. The disaccharides and the polysaccharides are made up of simpler units which are the monosaccharides.
A small direction change which might occur in the components of a molecule, for example, the placement of -OH in alpha glucose vs. beta glucose basically can result in causing some functional differences. For example, joining of alpha glucose will form starch which is basically used for energy storage in plants and if there is a joining of beat glucose will form cellulose which is needed for structural support in plants.
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what gives joints strength and stability but limits movement?
semi-elastic structure gives joints strength and stability but limits movement.
What provides stability to joints?In order to improve the joint's surface area (and hence its stability), cartilage on the bony surfaces that make up the joint may also serve to cushion the joint. The support system around the joint is made up of muscles, tendons, and ligaments. The motions that it will permit are determined in part by the bone's form.
Ligaments, the joint capsule, cartilage, friction, and the bony shape of the articulation are among the static elements of joint stability. These elements have generally accepted clinical joint stability and are frequently evaluated by joint stress testing.
Thus, semi-elastic structure gives joints strength and stability but limits movement.
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Mendel hypothesized that reproductive cells have only one factor for each inherited trait. This hypothesis is supported by the observation that?
Answer:
they have same characteristics
Explanation:
they have similar characteristics
a sequence of three nucleotides, called a codon, determines which of the 20 amino acids will be added to the newly forming protein. (true or false)
True. Which of the 20 amino acids will be included in the newly forming protein is determined by a sequence of three nucleotides known as a codon.
A codon is a three-nucleotide DNA or RNA sequence that serves as a unit of genomic information and codes for a specific amino acid or signals the end of protein synthesis (stop signals). 20 amino acids can be encoded with a minimum of three nucleotides per codon.
There are 64 different codons; 61 of them specify amino acids, while the remaining three serve as stop signals. Only 20 different amino acids can be found, but there are 64 possible codons, so most amino acids are represented by more than one codon. (However, it should be noted that each codon only designates one amino acid or stop codon.)
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Which would result in the greatest strain on the local water availability? A. Decreased farm activity around local waterways B. Decreased industrial activity C. Increased farm activity around local waterways
The result in the greatest strain on the local water availability would increase farm activity around local waterways.
Thus, the correct option is C.
The greatest strain on the local water availability would increase farm activity around local waterways because increased farm activity around local waterways requires a large amount of water for irrigation and other farming needs, which can strain the local water supply. Additionally, the use of fertilizers and pesticides on farms can also lead to pollution of local waterways, further impacting the availability of clean water for other uses. Therefore, increased farm activity around local waterways can result in the greatest strain on local water availability.
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what is the role of nadh and fadh2 in cellular respiration
During the process of cellular respiration, NADH and FADH2 serve as electron transporters. High energy electrons from the carbon-hydrogen covalent bonds in glucose are transported by them to the electron.
Transport chain, where they are then moved through a series of redox processes to the terminal electron acceptor of oxygen. NADH and FADH2 serve as electron donors for the electron transport chain. They both contribute electrons to the electron transport chain by giving the oxygen molecule a hydrogen molecule in order to produce water.
For the generation of aerobic ATP, NADH supplies electrons. NADH buildup can be harmful in cells that lack oxygen or have decreased electron transport chain performance. Elevated NADH blocks the traditional NADH-producing pathways, including the oxidation of fat, glutamine, and glucose, to reduce this toxicity.
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the three tunics of a blood vessel wall are the tunica intima, tunica ______, and tunica externa.
The three tunics of a blood vessel wall are the tunica intima, tunica media, and tunica externa.
What are blood vessels?Blood is delivered to human tissues by blood arteries, which act as conduits or channels. Two tube-like closed systems comprised of the vessels start and stop at the heart.
Blood is transported from the right ventricle to the lungs and back to the left atrium by one system, the pulmonary arteries.
The systemic vessels are the other system that transports blood from the left ventricle to the tissues throughout the entire body before returning it to the right atrium. Blood vessels are classified as either arteries, capillaries, or veins depending on their form and function.
Therefore, The three tunics of a blood vessel wall are the tunica intima, tunica media, and tunica externa.
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Which components determine whether a nerve impulse is transmitted across the synapse?
- Enzymes
- Fascicles
- Receptors
- Axon hillock
- Myelin sheath
The components that determine whether a nerve impulse is transmitted across the synapse is Receptors
The key components that determine whether a nerve impulse is transmitted across the synapse are receptors. These specialised structures are found on the postsynaptic neuron's surface and bind to neurotransmitter molecules released by the presynaptic neuron. When enough neurotransmitter molecules bind to the receptors, the postsynaptic neuron undergoes a change that can either excite or inhibit the neuron, depending on the type of neurotransmitter and receptor involved.
Enzymes, fascicles, axon hillock, and myelin sheath do not directly affect whether a nerve impulse is transmitted across the synapse. Enzymes can be involved in the breakdown of neurotransmitters after they have been released, fascicles are bundles of nerve fibres, the axon hillock is the location of the action potential in the neuron, and the myelin sheath is a fatty insulating layer that surrounds some axons, speeding up nerve impulse conduction.
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Plant bodies can respond to changes in their environmental conditions. How does a plant regulate water in its body?
A by growing toward a light source
B by photosynthesizing more energy
C through the opening and closing of stomata
D through wilting and dropping leaves
The correct option is C; Through the opening and closing of stomata , located on the leaves' surfaces, are involved in regulating gas interchange and water release. Plants regulate water by opening and closing stomata.
Stomata are small pores placed in the leafs' surfaces, whose opening is regulated by two guard cells surrounding them.
These pores are involved in gas interchange -letting CO₂ get into the plant, and O₂ leave it- and the transpiration process -expelling water through transpiration-.
Guard cells can expand or contract according to the plants' needs, causing the stomata to open or close.
Stomata opening and closure depend on water and CO₂ concentration inside the plant.
· If the plant is dehydrated, stomata close. If it is not dehydrated, it opens.
· If CO₂ levels are too low, stomata open to gain it.
So, stomata affect photosynthesis by controlling gas interchange -CO₂ and O₂- and water release -transpiration-.
Water balance:
· Stomata also regulate water vapor flow through transpiration.
· By limiting its exit, stomata allow more water molecules to be available for light reaction processes when the plant is dehydrated.
According to this information, plants regulate water in their bodies by opening and closing stomata.
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Why is the U.S. Constitution important?
It is the supreme law of the land that creates three branches of government.
It is a declaration by the colonies that they refuse British rule.
It is a compromise between New Jersey and Virginia land claims.
It is a law written by Federalists to prevent Loyalists from gaining power.
the sun helps convert carbon dioxide into a simple carbohydrate called
The sun helps convert carbon dioxide into a simple carbohydrate called glucose.
Glucose is a type of sugar that is essential to many organisms, as it serves as a primary source of energy for cells. The process by which glucose is produced from carbon dioxide is called photosynthesis, and it is powered by energy from the sun.
During photosynthesis, chlorophyll-containing cells in plants, algae, and some bacteria use energy from sunlight to convert carbon dioxide and water into glucose and oxygen. The process involves a series of chemical reactions that take place in specialized structures called chloroplasts.
Glucose is then used by the organism to produce energy through a process called cellular respiration, which releases the stored energy in glucose and converts it into a form that can be used by cells. This process is vital for the survival of many organisms, as it provides the energy necessary for growth, movement, and other metabolic processes.
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I need help on this
Explain each Steps of cellular respiration and what does it use and what does it make
Glycolisis uses Glucose and produces Pyruvate. The krebs cycle uses Acetyl CoA and produces Oxalacetate, NADH, FADH₂. The electron transporter chain uses Oxygen, NADH, FADH₂ and produces ATP and water. ATP synthase uses the proton gradient and produces ATP.
What are the steps of aerobic cellular respiration?
Through respiration, cells can degrade organic compounds and produce energy.
Aerobic respiration takes place in three steps or stages: Glycolysis, Krebs cycle and electron transporter chain.
Glycolysis is the first step of cellular respiration. Glycolysis is the process through which the cell partially decomposes glucose and turns it into pyruvate. It occurs in the cytoplasm.Pyruvate, the main product of glycolisis, enters the mitochondria matrix and turns into Acetyl CoA. Once in the matrix, it enters the Krebs cycle
The Krebs cycle, takes place in the mitochondria matrix. This cycle uses acetyl-CoA and turns it into Oxalacetate, NADH, and FADH₂.NADH and FADH₂ move to the mitochondrial membrane where it is used in the electron chain.
The electron transporter chain is placed in the internal mitochondrial membrane and uses protons from NADH and FADH₂ to produce ATP and water molecules.The proton gradient created along the elctron transporter chain is used to produce ATP molecules by ATP synthase.
Process What does it use? What does it make?
Glycolisis ⇒ Glucose ⇒ Pyruvate
Krebs Cycle ⇒ Acetyl CoA ⇒ Oxalacetate, NADH, FADH₂
Electron chain ⇒ NADH, FADH₂, O₂ ⇒ ATP + H₂O
ATP synthase ⇒ Proton gradient ⇒ ATP
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Question: The Largest Deflection From The Isoelectric Line In The ECG Is Found In ______ The Multiple Choice P Wave. T Wave. T-P Segmept. QRS Complex. P-R Interval.
The largest deflection from the isoelectric line in the ECG is found in the QRS complex, the correct option is (c).
The QRS complex represents the depolarization of the ventricles, which is a large and rapid electrical event that generates a significant amount of electrical activity. This electrical activity is reflected as a large deflection on the ECG tracing. In contrast, the T wave and T-P segment represent the repolarization of the ventricles, which is a slower and less powerful electrical event, while the P-R interval represents the conduction time from the atria to the ventricles and does not involve significant electrical activity.
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The complete question is:
The Largest Deflection From The Isoelectric Line In The ECG Is Found In ______
The Multiple Choice:
a. T Wave
b. T-P Segment.
c. QRS Complex.
d. P-R Interval.
