Nutrients are substances used by an organism for the purpose of growth, reproduce and survive. These includes proteins, fats, carbohydrates, minerals and vitamins. They are used to provide energy, as structural components, regulation components such as hormones and other messengers among other functions. Proteins and fats are used for regulatory functions and control the activities of the body, these are enzymes and hormones. In this case, carbohydrates do not perform regulatory functions in the body.
Answer:Animals have been used in the industrialized production of human vaccines since vaccine farms were established to harvest cowpox virus from calves in the late 1800s. From that point, and through the first half of the 20th Century, most vaccines would continue to be developed with the use of animals, either by growing pathogens in live animals or by using animal cells.
Explanation:
The Answer is A) Nuclear power generates large amounts of power limited to projection of greenhouse gases.
I believe this is the answer. As per the reports in 1998, it has been calculated the emission of the greenhouse gas has reduced for nearly half due to the popularity in the use of nuclear power. Nuclear energy by far has the lowest impact on the environment since it does not releases any gases like carbon dioxide, methane which are largely responsible for greenhouse effect. There is no adverse effect on water, land or any habitats due to the use of it. Though some greenhouse gases are released while transporting fuel or extracting energy from uranium.
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Answer with Explanation:
When phosphorus is carried by run-off to the oceans, marine animals take them in while others fall down to the ocean floor and attaches to sediments. Overtime, the ocean floor accumulates these particles resulting to the formation of sedimentary rocks (layers).
Weathering is a natural process and this can occur in the ocean. When this happens, the phosphorus which have been embedded in the sedimentary rocks are uplifted to the shore and thus, it goes back to the land. Then, the cycle starts again. The plants will take them up, then the animals will eat the plants in order to obtain it. When the plants and animals die, it will then be brought back to the soil or carried by run-off to the oceans.