Answer:
A virus
Explanation:
A virus requires a host cell to implant proteins into so that the host cell can create new virus cells. The virus essentially hijacks the cell.
All other listed cells can create new copies of their own proteins.
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Answer:
.92 A = Is
Explanation:
Is = 
We're solving for Is, so plug in all the other given numbers.
Vp = 230 V
Ip = .020 A
Vs = 5.0 V
Is = 
= .92 A
Answer:
deuterostomes
Explanation:
During the formation of the gastrula, a group of cells migrates towards the inside. The resultant sac forms the embryonic gut. The embryonic gut has an opening that opens to the outside and is called the blastopore. The blastopore may give rise to mouth or anus. In some organisms, blastopore develops into the anus. These organisms are called deuterostomes. The other organisms in which blastopore develops into the mouth are called protosomes. Echinoderms, hemichordates, and chordates are deuterostomes.
Answer:
B
Explanation:
It couldn't be A because meiosis for a spermatocyte results in only 2 male gametes, and it couldn't be C because asexual reproduction is mitosis only
Mantle convection causes tectonic plates to move around the Earth's surface.
