Answer:
Extinction is the death of a species or classification category
Answer:
B. Heterotrophs cannot create their own food
Explanation:
Autotrophs, on the other hand, can.
Answer:
(First) 10,000--->1000--->100-->10 (fourth)
Explanation:
Each trophic levels gets reduced by factor of 10.
Thus if you start with 10,000 in first, then you end with 1000 in second, 100 in third and 10 in forth.
Answer:
Explanation:
a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light.