Answer:
I think nitrogen and phosphorus
Describe the nonspecific antimicrobial effects of mucus, lysozyme, and acidic pH. For each of these substances, list where they are found in the body and how they function in fighting pathogens.
Answer: Non specific defence mechanism are the first lines of general defence that aids in preventing entry and minimising further passage of microbes and foreign materials into the body.
Explanation:
The non specific defence mechanisms protects us against any of enormous range of possible dangers using these methods:
--> defence at body surface
--> phagocytosis
--> natural antimicrobial substances
--> the inflammatory response and
--> immunological surveillance.
MUCUS is a slippery substance which covers the luminal surface of the Lungs. It provides defence at the body surfaces. Incase of any inhaled foreign material through the nose into the lungs, it's usually entrapped by the mucus. It is either coughed up or swallowed.
LYSOZYME: This is a protein with antibacterial properties present in granulocytes, tears and sweat. They are natural antimicrobial substances that destroys the cell walls of bacteria leading to its death.
ACIDIC Ph: The presence of acidic natural substances found in the stomach such as the gastric juice or hydrochloric acid, kills the majority of ingested microbes.
Match these items.
1. first nuclear reactor
curie
2. 1/0 n
atomic mass
3. splitting of nuclei into lighter elements
fusion
4. number of neutrons and protons
Fermi
5. builds heavier elements
neutron
6. discovered radioactivity
Becquerel
7. unit of radiation
fission
Answer:
1. Fermi
2. Neutron
3. Fission
4. Atomic mass
5. Fusion
6. Becquerel
7. Curie
Explanation:
1. The invention of the first nuclear reactor was led by a scientist called ENRICO FERMI.
2. A neutron is a subatomic particle with the symbol "n". It has a mass number of 1 and a charge of 0, hence, it is debited by 1/0n
3. Nuclear fission is the splitting of nuclei into lighter elements.
4. Atomic mass or mass number is the number of neutrons and protons in the atom of an element.
5. Fusion is the building up of heavier elements from smaller ones. It is the opposite of fission.
6. Henri Becquerel is the physcist from France who discovered radioactivity.
7. Curie (Ci) is the unit of radiation, given after the scientist who contributed immensely to radioactivity, called MARIE CURIE.
Answer:
Answer:
1. Fermi
2. Neutron
3. Fission
4. Atomic mass
5. Fusion
6. Becquerel
7. Curie
Explanation:
Hollow bones
Survival Advantage
Answer:They can fit into small or tight spaces.
Explanation:
help please i beg i don’t know
Answer:B, D
Explanation:
When the roller coaster starts flying down the hill, it gains kinetic energy and loses potential energy.
Why is it necessary to have a balanced environment ?
Survival of all organisms is actualized due to ecological balance. Various species survive because favorable ecosystems were created. Favorable ecosystem ensures that each organism thrive and multiply as expected. They get enough food to keep them alive. Ecological balance is also important because it leads to the continuous existence of the organisms
Briefly explain why it is difficult to determine the age of our planet.
Answer:
It is difficult to determine the age of our planet because the time this accretion process took is not yet known and predictions from different accretion models range from a few million up to about 100 million years
2. What happens in the thylakoid?
A. Krebs Cycle
D. Calvin Cycle/light independent reactions
C. light reactions/light dependent reactions
B. Glycolic Cycle
Plant cells and bacteria both have cell walls. Many antibiotics work by breaking down the proteins that make up the cell wall, so bacteria become vulnerable to the human body's immune system.
Answer:
what do you need to know?
Explanation:
I learned about this in bio last year, maybe I can help
The plant cell wall is made up of cellulose and the bacterial cell wall is made up of peptidoglycan.
What is a cell wall?The cell wall is a protective covering found in plants and bacteria. When bacterial cell attacks the human system lysozymes are some kind of enzymes that degrades the human system.
Penicillin and lysozyme both affect the cell walls of bacteria. When bacteria divide, penicillin weakens their cell walls, causing them to burst and perish from osmotic pressure.
A little enzyme called lysozyme breaks down a bacterium's protective cell wall by attacking it.
Therefore, The plant cell wall is made up of cellulose, and the bacterial cell wall is made up of peptidoglycan.
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1. How are renewable resources and nonrenewable resources different? Give two examples of
each.
1.
2.
Answer:
Renewable resources = electricity,wood
Non renewable resources= petrol,diesel hope u understand
Which statement about the behavior of
living things is true?
Answer:
whats the options
Explanation:
?
Why do most of the marine species live at or near the surface of the ocean
Answer:
Most marine organisms live within the sunlit surface waters. Strong sunlight supports photosynthesis by marine algae. Algae either directly or indirectly provide food for the majority of organisms. ... Most marine animals also live near the surface because this is where they can find food.
Explanation:
Brainliest please?
Which BEST describes why certain traits led to an increased frequency within the population of medium ground finches?
A
because the traits were acquired
B
because the traits were favorable
C
because the traits were inherited
D
because the traits were mutations
4. Discuss the sense organs of cnidarians
Answer:
To tell the truth I don't know what none of this stuff so I searched it up.
Explanation:
Cnidarian sense organs are thought to be exclusive to the medusa, a point we dispute subsequently. Nevertheless, the sense organs of the medusa are highly developed and distributed across Scyphozoa, Hydrozoa, and Cubazoa. In those hydrozoans with a medusa stage, many have eyes associated with the tentacle base.
Hope that is what you are looking for.
Answer:
he rhopalium, the sense organ bearing structure of Scyphozoa, as well as the Cubozoa (a modified group within the scyphozoans), contains the statocyst and eyes. It is borne on the margin of the bell in the medusa. The rhopalia of cubozoan medusae contain eyes with lenses, the most dramatic of cnidarian sense organs.
Explanation:
i need help ;(((((((
Answer:
A. Chloroplast
Explanation:
Chloroplast, often known as the kitchen of the cell, is where photosynthetic reactions combining light energy from the Sun into chemical energy [Glucose] that is stored as food. They contain a Green Color Pigment called 'Chlorophyll' that initiates the process, but Chlorophyll isn't an organelle, in fact, it is one of the elements of Chloroplasts. Similarly, Thylakoids are membrane-bound elements inside Chloroplast that aid in photosynthesis. While Mitochondria, [Power Houses Of Cells] generate energy for various processes in cells through ATP-Generations.
PLSSSSSSSSSSSSSSS HELP!!!!!!!!!!!! FIRST TO AWNSER GETS BEAINLIEST!!!!!!!!!!!!!!!!!
Prepare a public service announcement for each illness in which you describe 1) how the illness is transmitted, 2) how it is treated, and 3) any prevention measures that are being used to prevent the illness. Include a bibliography with each announcement to show the names of the sources you used. You may create your announcement in written form as a pamphlet, poster, or computer slideshow. Alternatively, you may make your announcement in the form of a video or audio recording.
Answer:
D
Explanation:
If a diploid cell contains 48 units of DNA in its nucleus at the beginning of mitosis, how many units will be present in the daughter cell at the end of mitosis?
A. 12
B. 24
how was the San Andreas Fault formed?
the creation of land in a subduction zone
consistent seismic activity
the kinetic energy in a rift valley
two plates moving past each other
Answer:
The correct answer is - two plates moving past each other.
Explanation:
The San Andreas Fault is a boundary or long valley that present at or represent the two different tectonic plates, North America plate meets the Pacific plate.
The origin of this valley is almost 30 million years ago in California. At that time both tectonic plates the Pacific Plate and the North America plate first met and slid past one another to make a boundary called a strike-slip fault. These are cause the biggest earthquakes.
Answer:two plates moving past each other
Explanation:
DDT is a pesticide that has been used worldwide over the past 50 years. DDT is used to prevent insects from destroying crops and as an insecticide used to kill disease-carrying insects. In 1972, the U.S. Environmental Protection Agency (EPA) began monitoring DDT usage. They conducted studies that analyzed ice layers from existing glaciers and these studies revealed that DDT was at its highest recorded levels 10 years after it was banned from being used. Which statement best describes why environmental monitoring for DDT was performed? Group of answer choices
A. To evaluate in what ways DDT impacts an ecosystem
B. To determine if DDT would cause serious harm to human populations
C. To predict if all chemicals are harmful to local pollinator insect populations
D. To ensure all chemicals are banned as soon as possible to protect public health
Answer:
I think B or C but mainly C
Explanation:
Is the process by which simple materials are chemically combined to form more complex materials
Answer:
synthesesis
Explanation:
your welcome! (:
Which of the methods of transport into or out of the cell require energy? Which do not?
Answer:
passive transport and diffuision
Explanation:
it requires no energy from the cell. Examples include the diffusion of oxygen and carbon dioxide, osmosis of water, and facilitated diffusion. diffusion does not.
Under which of the following circumstances might the nutrient levels in manure be tested?
if it will be sold as fertilizer
if it is thought to contain pathogens
if a farmer or rancher wants to change the nutrients in his or her soil
if a CAFO’s Animal Waste Management Plan (AWMP) is being reevaluated
Answer: if a farmer or rancher wants to change the nutrients in his or her soil
Explanation:
The nutrients in the manure plays an important role in growth and development of the crops and they improve the fertility of the soil. Certain mineral elements present in the manure can change the pH of the soil which can affect the growth of the plants. Thus the mineral content of the manure should be tested thoroughly before changing the nutrients in the soil by providing the manure to the soil.
Answer:
If the farmer wants to change the nutrients in his or her soil.
Explanation:
Took the test.
Which of the following pairs of organisms belong to the same population?
A. a dog and a cat
B. a marigold and a geranium
C. a human mother and her child
D. a spider and a cockroach
B. would be the answer.
I hope this helps
A pair of human mother and her child belongs to the same population.
What is population?"Individuals of any species live in groups in a well defined geographical area, share or complete for similar resources, potentially interbreed and thus constitute a population."A dog and a cat, a marigold and a geranium and a spider and a cockroach do not share similar resources and they don't interbreed so they do not belong to the same population.
Hence, the correct option is C. a human mother and her child.
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Please help!!!!!! Which is incorrect?
Answer:
Segment 3
Explanation:
A cannot connect to C
8.
(06.02 MC)
Which organelle is most likely to be found in both Archaea and Bacteria and why? (2 points)
Both require chloroplasts for photosynthesis.
Both have mitochondria to provide energy for the cell.
Both need a nucleus in which to store their DNA.
Both use ribosomes to synthesize proteins.
Answer:
The organelles that are most likely to be found in Archaea and Bacteria are ribosomes, which they use to synthesize proteins.
Explanation:
Both Archaea and bacteria are unicellular prokaryotic organisms, which have in common lack of nucleus and most of the organelles, however they have ribosomes that allow them to perform protein synthesis.
The differences between Archaea and bacteria have allowed taxonomic classification in different domains.
The other options are not correct because:
Although some bacteria and archaea can photosynthesize, it is not common to find chloroplasts in these organisms. Archaea and bacteria lack mitochondria. Prokaryotic organisms such as Archaea and bacteria do not have a nucleus, and their genetic material is dispersed in the cytoplasm.Answer:
Both use ribosomes to synthesize protien.
Hope this helps:)
100 POINTS PLZ!!! AND DO NOT SAY I.DK IT IS SO MEAN!! JUST DON"T ANSWER IT IF YOU DON"T KNOW THE ANSWER!
Use the library and other reference materials to research lupus. Then, write a 400-word report on what you have learned. Be sure to include symptoms, causes, and treatments.
Answer:
The one I chose is very interesting I think you will enjoy it.
Lupus is a multisystem disease in which autoantibody production can lead to inflammation and tissue
damage in any part of the body. The pathogenesis of lupus is thought to be a combination of
predisposing genetic factors and environmental factors such as medication, or infectious agents that
trigger an abnormal immune response. This occurs when Suppressor T cells fail to suppress, in other words there are defects in cell signaling
hope this helps <333 luv yuu
Explanation:
Answer:
he is correct
Explanation:
give any two medical uses of oxygen
Explanation:
Medical oxygen is used to: ... restore tissue oxygen tension by improving oxygen availability in a wide range of conditions such as COPD, cyanosis, shock, severe hemorrhage, carbon monoxide poisoning, major trauma, cardiac/respiratory arrest. aid resuscitation.
this is you're answer please give me thanks
Answer:
In cells, oxygen is needed for aerobic respiration, which allows for the extraction of energy from ingested foods. Thus supplemental oxygen at home and in hospitals is vital for those with breathing disorders such as emphysema.
Compressed oxygen tanks are used by mountaineers at high elevations to counteract the decreased O2 pressure at these altitudes.
Supplemental oxygen is needed for surgical patients intentionally rendered paralyzed for medical procedures, in which "heart-lung machines" keep their vital functions going.
Oxygen can be used as a sterilizing agent to kill certain anaerobic bacteria that are killed by sufficient exposure to the gas.
Industrial Uses of Oxygen:
Oxygen is needed for the reaction that converts carbon to carbon dioxide gas in steel working, which takes place under high temperatures in a blast furnace. The carbon dioxide produced allows for the reduction of iron oxides into more pure iron compounds.
Oxygen is used in other applications involving metal and requiring high temperatures, such as welding torches.
Aerospace Uses of Oxygen:
In liquid form, oxygen is used widely as an oxidizing agent for use in missiles and rockets, where it reacts with liquid hydrogen to produce the terrific thrust needed for take-off. Astronaut spacesuits include a nearly pure form of oxygen.
Oxygen is used to degrade hydrocarbon compounds, which are broken apart by heating them. This is used to create combustion that usually liberates water and carbon dioxide, but can also produce the hydrocarbons acetylene, propylene and ethylene.
Oxygen is used in sewage-treatment and water-purification plants. It is forced through water to increase the production of bacteria that metabolize waste products in the water.
Oxygen gas (O2) is needed to produce energy in things not linked to an electrical supply of their own, such as generators and vehicles (e.g., ships, airplanes and cars).
Please help. What safeguards are in place to protect Americans from unsafe food? Are these methods science-based?
Answer: The FDA and USDA cerate food safety programs, safeguards to protect Americans, to protect people from unsafe food. The FDA has monitoring programs for pathogens, naturaltoxins, pesticides, etc.; their methods are science-based.
The safeguards that are placed to protect Americans from unsafe food are FDA and USDA. FDA means food and drug administrator and USDA means U.S. department of agriculture.
What are FDA and USDA?FDA stands for food and drug administrator. It is a health and food department to ensure public health and to check the food items that the citizens are consuming.
USDA stands for The United States Department of Agriculture. The department is responsible for making the laws regarding food quality, and they also develop new qualities of fruits and vegetables.
These departments are based on scientific research and methods. Many scientists work under this to save people from having bad food.
Thus, The FDA and USDA are the safeguards set up to protect Americans from tainted food.
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The largest diversity of plants and animals on the planet is found in one terrestrial biome.
Answer:
There are diversity of plants and animals species found on the terrestrial biome. The biome such as forest, desert are rich in variety of plants and animals. This states that largest diversity is found in almost all the types of terrestrial biome.
Explanation:
being boy i have a girlish voice . i am very sad and feel losing my confidence please help
Answer:
Hey it doesn't matter how you are ,how you talk
Explanation:
what matters is your personality,
And don't care what others say ,just be how you are,be what you want to be
Answer:
It doesn't matter what you sound like, so don't stress too much. It's who you are, be proud of it. Don't let anyone make you think otherwise.
Explanation:
Assume a seed eating finch population is currently at carrying capacity and the availability of food decreases dramatically. What will happen to the carrying capacity
Answer:
This question lacks options, options are:
A.Carrying capacity will increase B.Carrying capacity will decrease C.Carrying capacity will remain unchanged. The correct answer is B.
Explanation:
Ecologists define 'carrying capacity' as the population of a certain species that a defined habitat can support indefinitely, without permanently damaging the ecosystem on which they are dependent,that is, the ecological carrying capacity of an ecosystem is the maximum growth limit of a biological population that the environment can support in a given period, without negative effects on that population or on the environment.
