Plant cell growth, an irreversible increase in cell volume, can occur by expansion (increase in cell size in two or three dimensions) or by elongation (expansion constrained to one dimension). Variety in cell shape may result if either of these two processes occur only at specific regions of the cell surface.
A) Species extinction - This is because animals will lose their homes and will eventually, slowly die out.
and
D) Reduced oxygen - Trees provide us with oxygen
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Answer:
Aside from preventing back flow of blood, valves in the veins aid in the return of blood from the extremities to the heart ( from feet and legs in particular).
Explanation:
Answer:
It is TURE
Fats are usually of animal origin while oils are usually of plant origin. Fats and oils function well as energy-storage molecules because they contain carbon.