Answer:
chirps, squawks, squeals and whistles
Explanation:
Answer:
false
Explanation:
Phytoplankton are from the water and not found on land.
The presence of a mutant lac repressor that could not bind lactose would result in no transcription even when lactose was present because the mutant repressor would remain bound to the lac operator
The transcription of lac operator is controlled by the lac repressor. When lactose is present, the lac repressor normally will bind to the lactose, removing itself from the lac operator so it could be transcripted.
In this case, the mutation makes the lac repressor keep binding to the lac operator so the result would be no transcription even when lactose present.
Eukaryotic cells are mostly found in Archea and multicellular organisms meanwhile prokaryotic cells are found in unicellular. The major difference between the two is eukaryotic cells have a nucleus, or a nucleotide region. Therefore I believe the answer is C.
Answer:
They increase the levels of catecholamines—a family of brain chemicals that includes dopamine.
Explanation:
Stimulants are a class of drugs that “stimulate” the body's central nervous system, which includes the brain and spinal cord. They increase the levels of catecholamines—a family of brain chemicals that includes dopamine. These chemicals are used in the brain processes to signal reward and motivation.
