What must happen before a cell can begin mitosis? View Available Hint(s) for Part A The sister chromatids must be separated. The nuclear envelope must
Answer:
What must happen before a cell can begin mitosis? The chromosomes must be duplicated, which occurs during interphase.
Explanation:
What is the structure of the forebrain that connects the two hemispheres of cerebrum?
Answer:
c. Corpus callosum
Explanation: is correct
Answer:
corpus callosum
Explanation:
right on test
How does the physical environment in a tide pool change between tides?
darwin found that many of the species on the galápagos islands
Why are the intestines and stomach not weighed during an autopsy.
Answer:
All the internal organs are examined for injury and disease and weighed. They Intestines and stomach are not weighed. The pathologist drains the intestines in a sink to remove any undigested food and feces that remain.
All the internal organs are examined for injury and disease and weighed. They Intestines and stomach are not weighed. The pathologist drains the intestines in a sink to remove any undigested food and feces that remain.
What is autopsy?A post-mortem examination, often known as an autopsy, is a specialist surgical process used to ascertain the cause and manner of death. The medical explanation for why a patient passed away is called the cause of death.
The circumstances surrounding the death are known as the mode of death. The following causes of death are recognized in natural, accident, homicide and unknown.
Our understanding of disease is constantly expanding thanks to autopsies. The information obtained through autopsy enables professionals to better comprehend disease processes, make accurate diagnoses, enhance treatment, and perhaps even help other patients who are currently afflicted with a similar condition.
Therefore, All the internal organs are examined for injury and disease and weighed. They Intestines and stomach are not weighed. The pathologist drains the intestines in a sink to remove any undigested food.
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What else should the second group of researchers measure to test its
hypothesis?
OA. the current levels of water in the river
ОВ.
the type of pollen in cores from a nondrought period
OC.
the composition of microscopic charcoal released during natural fires
OD
the quantities of sediments in cores from the delta during a
nondrought period
The type of pollen in cores from a nondrought period, the composition of microscopic charcoal released during natural fires, the quantities of sediments in cores from the delta during a nondrought period.
Thus option B, C, D are correct. These are the second group of test of hypothesis.
What are the steps of test of hypothesis ?Testing of Hypothesis testing is used to determine the plausibility of a hypothesis.
The test assess the plausibility of the hypothesis of a sample data.
It occurs through different steps, the first step is used to test the state the two hypotheses.
In the next step evaluation of data, third step include carry out plan and analyze the data.
The final step is to analyze the results of the data, it can either accept the hypothesis and reject the null hypothesis.
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What are the four most common elements in all living things
Answer:
Oxygen
Oxygen is the most abundant element contained within living organisms, composing about 65% of the human body. Oxygen is also the most abundant element in the Earth's crust, and in the air that is essential for most life on Earth. Oxygen's presence in the body is largely in the form of water, which is used to produce the energy within the body needed to sustain life.
Carbon
Carbon forms the basis for all life on Earth; indeed, life forms on Earth are referred to as carbon-based life forms, emphasizing the importance of this element for life. Carbon atoms readily bond to other atomic elements, such as oxygen and nitrogen. Since carbon can so readily bond to other elements, long chains of bonds can form and provide the physical and chemical structure needed for the complex processes and structures that occur within living organisms, such as structural proteins and genetic information in the form of nucleic acids.
Hydrogen
Hydrogen is the simplest element, as its atom contains only a single proton and a single neutron. As a result of this simplicity, hydrogen readily bonds with other elements, making it an important component for the formation of living organisms. Hydrogen is the other element (along with oxygen) which forms water, a crucial component for most life forms on Earth. Hydrogen is also a byproduct in many biological reactions, including photosynthesis and metabolism.
Nitrogen
Nitrogen is one of the most abundant elements on Earth, composing approximately 80% of the air on Earth. Nitrogen is an important element in the development of plant life, as compounds containing these elements are readily absorbed and used by plants. Nitrogen is also an important component of many proteins and deoxyribonucleic acids (DNA), which is crucial for genetic material to be passed on to subsequent generations of life.
Sulfur
Sulfur is a major component of two essential amino acids used by living organisms: cysteine and methionine. These amino acids, like all amino acids, are crucial for the construction of proteins that are used for structural stability and repair of living organisms. For example, the structural integrity of hair and feathers can be attributed to these amino acids. Sulfur is also used as a source of energy and is metabolized by some species of bacteria and other lower life forms.
Phosphorus
Phosphorus is used in the formation of phospholipids, a type of molecule that is a major component of the cell membrane of all living cells. Without this cell membrane, cells would not be able to develop and would not have the structural stability to form in the first place. This protective layer of phospholipids holds all the internal components of cells in place, allowing for the processes that maintain the life of the cell to take place. The phospholipid layer also protects the cell by keeping any unwanted or potentially destructive materials outside of the cell.
(via sciencing.com)
Explanation:
hope it helps
During hibernation, bears do not eat for 5 to 6 months in a row. How can the bear stay alive without eating for this long?
Answer:
Fat.
Explanation:
Bears have to survive on the fat. That is why they will eat so much to hibernate through the winter. If they don't have enough fat they wake up.
I hope this helps you
EXPLAIN two ways in which a leaf can adapt to maximize of photosynthesis.
Answer:
"Large surface area for maximum light absorption. The presence of chlorophyll containing chloroplast. Thin structure Short distance for carbon dioxide to diffuse into leaf cells."
Answer:
Photosynthesis is made possible by the adaptations of the leaf, which include a large surface area for optimum light absorption and the existence of chlorophyll-containing chloroplasts.
Explanation:
The two ways are in bold letters:)
What is a food web?
A.a structure made by scientists to help animals get food if they can't get food in the wild
B.a model used to show how organisms are related in an ecosystem based on how they get their energy
C.a model used to show how plants make their own food
D.a structure a spider makes to get the food it eats
Answer:
B.a model used to show how organisms are related in an ecosystem based on how they get their energy
Explanation:
wha molecules absorbs sunlight for photosynthesis
Explanation:
The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas.
Which of these is a product of anaerobic rrespiration
A trait that is masked or hidden unless there are two is called ...
(Mendelian Genetics Notes)
(1 Point)
an allele
recessive
dominant
incomplete dominant
Answer:
recessive gene
Explanation:
mainly masked by thee dominant gene eg Tt where T is dominant over t,,,there t is recessive..
Which of the following has the greatest effect on the protein molecule produced
by a ribosome?*
A. The sugars in the RNA molecule
B. The nitrogenous bases in DNA
C. The hydrogen bonds in the tRNA
D. The phospholipids in the cell membrane
Answer:
The answer is B.
Explanation:
Depending on what order the nitrogen bases are used in the DNA will determine the opposite bases placed on the RNA making the sequence different, making the protein different.
The nitrogenous bases in DNA has the greatest effect on the protein molecule produced by a ribosome. Thus, option B is correct.
What are the nitrogenous bases in mRNA?Nitrogenous bases in mRNA are the sequence of amino acids. The translation is one of the two-stage events in protein synthesis. Protein synthesis is the process in which protein or polypeptide chains are synthesized by the DNA. This is the use of nitrogenous bases in mRNA.
The process of translation is similar to a smartphone app converts spoken English into Spanish as it involves the translation of the sequence of nitrogenous bases in mRNA molecules to the polypeptide or sequence of the amino acids.
Protein has been defined as the large macromolecules and biomolecules that are made up of long chains of amino acid. There has various function of protein such as DNA replication, speeding up chemical reaction, and helps to maintain the structure of cell.
Therefore, The nitrogenous bases in DNA has the greatest effect on the protein molecule produced by a ribosome. Thus, option B is correct.
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All the offspring of a cross between a black-eyed mendelian and an orange-eyed mendelian have black eyes. This means that the allele for black eyes is ________ the allele for orange eyes.
Which of the following is a biological hazard?
a) Noise
b) Fiber
c) Mold
d) Dust
Answer:
ur answer is c i belive becasue it makes the enviroment around people hard to live in
Explanation:
identify the three types of symbiotic relationships and give an example of each in your answer be sure to describe the relationship
Answer:
mutualism, commensalism, and parasitism
Explanation:
mutualism, commensalism, and parasitism
NEED HELP NOW PLEASE
Answer:
it's kind of hard to answer without the picture lol
Someone plz help me plzz :(
Answer:
C if i remember correctly
Explanation:
i did this yesterday for plant cell biology
Answer:
From what I see this is a cell and the part label Y is where the enzymes break down food so the closer answer would had been C
How would a biomagnification “pyramid compare with an energy pyramid?
Answer:
Energy pyramid depicts flow of energy in the ecosystem: source of all energy in ecosystem is the SUN. Producers are only organisms in ecosystem who can trap the solar enrgy. So base of energy pyramid is always wide. A biomass pyramid shows the total dry mass of all living organisms at each trophic level.
Explanation:
Because the amount of the pollutant increases as it goes up the food chain, the biomagnification pyramid is inverted whereas the energy pyramid is consistently upright.
What is biomagnification?Biomagnification is the amassing of a chemical by an organism as a result of exposure to both food and water, resulting in a concentration that is higher than what would have been expected from equilibrium and higher than what would have occurred with only water exposure.
When dangerous chemicals like DDT that remain in the environment are indirectly absorbed by living things through food, this process is known as biomagnification.
When a higher-order organism consumes a lower-order organism that contains such compounds, the chemicals may accumulate in the higher-order organism.
The biomagnification pyramid is upside down because the amount of the pollutant increases as it moves up the food chain. The energy pyramid, however, is always upright.
Thus, this can be the comparison between the energy pyramid and biomagnification.
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Which one of the following parasites affect all domestic animals?
A.Ticks. B. Mites
C. Tsetse fly D. Fleas
Answer:
D fleas affect all animals
Answer:
D
Explanation:
FLEA THE NAME ORDER IS SIPHONAPTERA
true or false: the difference in the sun, earth, and moon’s syzygy is why there are different types of eclipses.
Answer:
I think the answer is true
saliva contains relatively few microbes compared to other body sites, because __________.
Saliva contains relatively few microbes compared to other body sites, because the concentration of antimicrobial enzymes limits their growth.
Urgent Care Centers are extremely busy during cold and flu season. The influenza virus can causes symptoms such as a cough, high fever, aches, and weakness. It can be very uncomfortable for patients and causes loss of time at work. What is the best way for a person to protect themself from getting the flu?
Group of answer choices
Obtain a immunization before flu season begins.
Drink a lot of fluids and get plenty of rest.
Begin taking antibiotics as soon as symptoms begin.
Take antiviral medication as soon as fever is detected.
Answer:
Obtain a immunization before flu season begins
Explanation:
The question asks for prevention and the other answers sTate what to do when you already have it.
ANSWER THIS ASAP!!! Describe the structure of a neuron. Include the cell body, dendrites, and axon in your description. How does the structure of a neuron help it carry out its function efficiently?
Answer:
Sensory neurons. Sensory neurons help you: ...
Motor neurons. Motor neurons play a role in movement, including voluntary and involuntary movements. ...
Interneurons.
Explanation:
what is the primary function of the chlorophyll pigment?
Answer:
to absorb light—usually sunlight.
Explanation:
An airtight, temperature-controlled glass box containing actively growing tomato plants was placed under a light source. Plastic wrapping that only transmits green light was placed over the box, and two days later air samples from inside the box were collected and analyzed. The most likely change in air quality is:
The most likely change in air quality is a decrease in carbon dioxide (CO2) present in the box.
Photosynthesis is the process by which green plants produce their own food in the presence of light and carbon dioxide. The most important indicator of air quality is carbon dioxide. This gas is removed during photosynthesis.
This implies that after two days, analysis of the air samples from the pot will definitely indicate a large decrease in the amount of carbon dioxide present in the box.
Missing parts;
An airtight, temperature-controlled glass box containing actively growing tomato plants was placed under a lightsource. Plastic wrapping that only transmits green light was placed over the box, and two days later air samples frominside the box were collected and analyzed. The most likely change in air quality isa. an increase in nitrogen (N2)b. an increase in carbon dioxide (CO2)c. an increase in oxygen (O2)d. a decrease in carbon dioxide (CO2)
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What organisms does lactic acid fermentation occur in.
Answer:
It occurs in Yogurt Bacteria
Which equation can be used to solve for acceleration?
Answer:
To do this you need to know equation for acceleration: a = Δv / Δt where a is acceleration, Δv is the change in velocity, and Δt is the amount of time it took for that change to occur. The unit for acceleration is meters per second per second or m/s2.
Explanation:
What kind of fish is on the brink of commercial extinction?
Question 3 options:
Alaska Wild Salmon
The Pacific Cod
North Atlantic Salmon
South Atlantic Swordfish
what are known to swim near dolphins for protection?
Question 5 options:
cod
tuna
salmon
sharks
Answer:
The legendary humpback Mahseer, one of the worlds most iconic freshwater fish, is on the brink of extinction according to scientists from Bournemouth University in the UK
Explanation:
hope this helps I don't know Its correct answer
