Answer:
A. maintenance of axons is not a cellular activity associated with microtubules.
Explanation:
Microtubules are hollow, bead-like, tiny tubular structure that helps cells maintain its shapes. Together with microfilaments and intermediate filaments, they form part of the cell's cytoskeleton. Microtubules also contributes to the cell movement or cytokinesis that includes muscle contractions in muscle cells. Microtubules also replicated chromosomes to opposite ends of a cell during cell division. Microtubules also contribute to the parts of the cell that help it move and are structural elements of cilia, centrioles and flagella. A bundle of microtubules makes up an axonemal structure of cilia and flagella.
1. They are easy to raise.
2. Have many offspring during per mating.
3. It can fertilize itself.
4. It has varieties in genotype that is easy observable.
5. It has phenotype that is also easy observable.
Answer:
density-dependent
Explanation:
limiting factors cause a population's per capita growth rate to change—typically, to drop—with increasing population density. one example is competition for limited food among members of a population. whereas, density-independent factors affect per capita growth rate independent of population density. examples include natural disasters like forest fires.
If the liver begins to release glycogen because the pancreas releases glucagon, the amount of <u>the concentration of insulin</u> in the bloodstream must be too low.
<u>Explanation:</u>
Glucagon is considered to be the primary catabolic hormone of the body and is produced by the pancreas.
When insulin in the bloodstream falls low, then the pancreas causes the liver to convert stored glycogen into glucose. Insulin allows glucose to be used by insulin-dependent tissue.
The body releases insulin and glucagon to keep the blood glucose level stable in the body. Under stress, the level of glucagon increases in the body.