1point
the productivity of a freshwater ecosystem depends on water movement. in
which of the following freshwater ecosystems does water move constantly in
one direction?
o a. bog
o b. stream
o c. marsh
o d. swamp
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Why do mutations in genes affect traits? o a. genes determine what type of mutagens an organism has. o b. genes produce proteins that cause traits. o c. genes affect how many chromosomes an organism has o d. genes code for carbohydrates that influence traits.

The shift of a vehicle's weight around its center of gravity is known as

Witch type of microscope is used to view very small cell components like proteins and dna?