The cardiovascular system
The cardiovascular system is an
organ system which allows blood to circulate and transports nutrients, gases, hormones,
and blood cells within the cells of the body for proper functioning of human
cells and organs. The cardiovascular system is made up of the heart and the
circulatory system. A group of arteries, arterioles, and capillaries help to carry
blood from the heart to other parts of the body.
Answer:
Option D (4), add phosphate groups
Explanation:
Kinase enzymes are responsible for cellular activation. Protein kinase causes phosphorylation of specific amino acids by utilizing ATP as source of phosphate.
It adds phosphate groups (PO43−) and induces biological activity of biomolecules (such as proteins, lipids, and nucleic acids) by changing their conformation thereby activating them .
Human genome consists of several hundreds of kinase encoding genes which are involved in multiple phosphorylation reactions with in the cytoplasm of cells.
Hence, Option D (4) is correct
<span>63x
The amount of magnification you see through a microscope is extremely easy to calculate. You just multiply the power of each lens the image travels through together. So you have the equation
630 = 10 * x
where 630 is the total magnification and 10 is the magnification of the ocular lens. Now just solve for x by dividing both sides by 10
63 = x
So the objective lens has to have a power of 63x for your total magnification to be 630x</span>
Answer:
D. A number of genetically resistant pesticide survivors reproduce. The next generation of insects contains more genes from the survivors than it does from susceptible individuals.
Explanation:
Insect populations already have some insects with pesticide resistance genes. Exposure of insects to pesticides results in the natural selection of these insects with pesticide resistance as they are able to survive and reproduce in the presence of pesticides whereas the other insects die. The resistant insects leave more progeny resulting in the evolution of insect population with increased frequency of pesticide resistance gene.
