If the producers in an ecosystem produce 25,000 kcal of energy, approximately how much energy is available to the secondary consumers? A. 250 kcal B. 25 kcal
C. 2,500 kcal
D. 25,000 kcal

b. heterotroph

explanation:

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.

the sun creates it's own light, also gives light and life to bunch of stuff like plants,animals,humans etc.photosyntesis is the process of making food which needs sun,water,nutrients etc.

i would think a oil tanker that has leaked in a bay