What do all ecosystems have?

A. biotic p21 only

B. abiotic p21 only

C. producers only

D. biotic and abiotic p21

Where is the most anaerobic zone In the ocean

What 3 things are made during cellur respiration

Describe how living things use anaerobic respiration to generate energy.

Which of these resources cannot be renewed? biomass, coal, solar, wind

Lionfish are a predatory fish that are commonly kept in home aquaria. However, when people are no longer able to care for these fish, they often release them into the ocean. This introduces a non-native species into an area where it should not be.

How many chromosomes are present at the end of metaphase?

What percentage of the offspring have sickle cell anemia

How does a large complex system like the earth system operate

How many poops does he average human take

What describes the long history of earth