Which observation supports the claim that microorganisms are helpful to ecosystems?
A. Microorganism are to small to been seen without special equipment.
B. Microorganism need water and energy to survive.
C. Millions of microorganism can often be found in soil.
D. Microorganisms break down dead plants and animals, making nutrients available.
Select your answer:
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Biology › ViewA baby sea turtle hatches, digs out of its nest, and starts crawling towards the ocean. What type of behavior is this?
A. learned behavior
B. imprinting
C. migrations
D. innate behavior
Biochemistry › View
These are found in the “cloud” and are responsible for the interactions between atoms.
A. protons
B. neutrons
C. electrons
D. magnatrons