Which best explains why a pyramid is used to represent energy flow within an ecosystem? Hint: what happens to available energy as you go up?

1. Because available energy decreases as you go up

2. Because the organisms get bigger

3. Because the amount of the organism is more

4. Because further of organisms use less energy

What is the relationship between absorbance of light and the rate of photosynthesis?

The embryos of a bird, a reptile, and a mammal are similar in appearance. how does comparing the physical appearance of embryos of different species support the theory of evolution? a. it shows that these organisms share a common ancestor. b. it provides evidence that these organisms eat the same foods.c. it shows that these organisms share the same habitat.d. it provides evidence that these organisms suffered a genetic mutation.

If people from georgia have just experienced an extremely cold winter the last couple of months, what would the climate most likely be classified as? polar temperate maritime tropical