Bacteria is not as complex as human and other animal lives, which means they need less energy and DNA to evolve in these ways.
Answer:
B
Explanation:
Many sea animals have certain temperatures that they adapt to, when the temperature decreases or increases it affects their environment and what they were used to
Passive is when materials travel or move across some cell membranes that doesn't use cell energy.
Active is the meaning of a movement that crosses across some cell membranes that requires the use of cell energy.
Answer: The answer is that passive doesn't use cell energy but active uses cell energy.
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Answer:
The gene for beta-galactosidase turns off.
Explanation:
The gene that codifies the beta-galactosidase enzyme is part of the <em>lac</em> operon, which also contains two other genes that produce enzymes involved in the metabolization of lactose.
Between glucose and lactose, the bacteria will preferentially use glucose as an energy source. On the other hand, lactose is a dimer, and thus a series of enzymes are needed to process lactose before its use as an energy source.
If there is no lactose present, the genes contained inside this operon are turned off (the operon is repressed).
