B. some species die out when environmental changes occur
The answer is B :)- because snow only falls below freezing.
Answer:
Microtubules
Explanation:
These filament-like structures are a major component of the cytoskeleton of the cell and help is maintain asymmetrical cell shape. They are composed of tubulin molecules arranged to form a 'hollow straw' attached to the cell membrane end to end . The contraction and lengthening of these microtubules are controlled by the addition of removal these of tubulin molecules to vary its length.
Answer:
The answer is Kingdom .
Explanation:
Kingdom is place the highest in the level of classification .
