Answer:
Each component is in balance with the other components. As long as the components are in balance, the ecosystem can remain stable and healthy. Ecosystems may remain stable for many years if the different components are balanced.
Answer:
c.Racquetball
because the lighter the object the more force it needs to go
Answer:
c)polymerase chain reaction (PCR).
Explanation:
Because the paleontologist recovered only a bit of tissue and it is very old, it is very likely that the DNA in the sample is very small and part of it is degraded. Anyway, the paleontologist must first amplify the DNA sample to obtain many identical copies of the specific region of the DNA they want to compare. the above is done through a polymerase chain reaction (PCR).
There are four major classes of biological macromolecules:
carbohydrates.
lipids.
proteins.
nucleic acids.
Let me help you,
The process in which two gametes unite is called fertilization.
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