Which one of the following does not accurately describe microtubules?
a) composed of long chains of the protein tubulin
b) largest diameter of the three components of the cytoskeleton
c) associated with organelle movement and cell motility
d) participate in cytoplasmic streaming and muscle contraction

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.

Drag the tiles to the correct boxes to complete the pairs. match each cell organelle with its description.

Ineed with a hypothesis my question is can seeds sprout in different locations?