Answer:
D. Permian. This is when 96% of all species on the planet became extinct.
Answer:
The testes are responsible for making testosterone, the primary male sex hormone, and for producing sperm. Within the testes are coiled masses of tubes called seminiferous tubules. These tubules are responsible for producing the sperm cells through a process called spermatogenesis
Explanation:
its copied but hope it helps
Base pair,chromosome,DNA strand,and nucleus
Complete question:
Question: In prokaryotes, genes can exist as operons that are transcribed into a polycistronic mRNA, containing multiple genes in a single transcript. In eukaryotes, transcripts exist only as monocistronic mRNA containing a single gene. What fundamental genetic difference is responsible for this distinction?
(A) mRNA is transported outside of the nucleus in eukaryotes.
(B) Prokaryotic mRNA has a five-prime GTP cap.
(C) Prokaryotes use a single start codon for multiple genes.
(D) In eukaryotes, each gene has its own transcription initiation site
Answer:
(D) In eukaryotes, each gene has its own transcription initiation site
Explanation:
Eukaryotic mRNAs are monocistronic in nature which means that one mRNA carries the single transcript to be encoded. Each monocistronic mRNA is encoded by a stretch of a gene that has a specific initiation site to start the process of transcription. On the other hand, prokaryotes have some mRNAs that carry the code for two or more different polypeptides. These mRNAs are called polycistronic. For a polycistronic mRNA, multiple transcripts are transcribed under the single transcription initiation site.
Answer:
The neuron will fire an action potential.
Explanation:
A neuron is a cell in the brain that transmit signals to other nerve cells.
The depolarization of a neuron occurs when the neuron moves to a cell membrane with a more positive value which makes it more likely to fire an action potential.
