Answer:
Cancer is formed when there are mutations in a number of genes.
Explanation:
Malignant tumors are gene diseases which do not mean that cancer is necessarily an inherited disease (only in 5-10% of cases the cancer is inherited) because the vast majority of other tumors are the result of somatic, ie secondary, mutations that lead to malignant transformation.
Only 2% of human diseases are monogenic (caused by a change in one gene). The remaining 98% of the disease is either polygenic (caused by a change in several genes at the same time) or epigenetic (caused by non-genetic or post-genetic disorders of cellular molecules).
b. protozoa
One of the four species of protozoan in the genus Plasmodium is responsible for the acute or subacute infectious disease known as malaria.
<h3>A virus or a bacteria causes malaria?</h3>
- A virus or bacteria cannot cause malaria.
- Plasmodium, a parasite that often spreads through infected mosquitoes, is what causes malaria.
- A mosquito consumes Plasmodia that are present in blood when it feeds on an infected human.
<h3>How do protozoa cause malaria?</h3>
- The female anopheles mosquito bite is the primary method of transmission of malaria, a protozoan infection of the red blood cells.
- The Plasmodium genus of protozoa is what causes malaria.
- Four different types of malaria parasites can infect people: Plasmodium malariae, vivax, ovale, and falciparum
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Answer:
Animals and plants need nitrogen to build amino acids in proteins, which are the building blocks of life. Unlike oxygen, nitrogen cannot be absorbed directly from the air by animals and plants.
Explanation:
The correct option is D.
The Endangered Specie Act was enacted in 1973. It is an environmental law which provides for the conservation of species that are endangered or threatened and the preservation of the ecosystem in which they live. The law prohibit the catching and killing of endangered species.
