Answer:
The second statement is correct: "The "host range" for a virus is determined by the presence or absence of particular components on the surface of a host cell that are required for the virus to attach."
Explanation:
The virus attaching itself to the host cell is the first step for it to successfully infect the host. Viruses are smaller in size than bacteria, so the first statement is incorrect. The third statement is incorrect because viruses do not have the necessary machinery to carry out protein synthesis or to generate ATP, this precisely why they seek out a host to begin with. The fourth statement is false because the virus will either have DNA or RNA, but both at the same time.
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Answer:
Ribosomal RNA (rRNA) associates with a set of proteins to form ribosomes. These complex structures, which physically move along an mRNA molecule, catalyze the assembly of amino acids into protein chains. They also bind tRNAs and various accessory molecules necessary for protein synthesis.
Explanation:
Di = 2
Tri = 3
C. Since there are only 2 Phosphates, the molecule shown is ADP.
Answer:
New predators move into the ecosystem
Explanation:
A limiting factor is anything that constrains a population size and slows or stops it from growing,so when predators move into the ecosystem they compete with other organisms for resources
Compared to alcohol, antihistamines are often more likely to produce dizziness and confusion before significant loss of physical coordination. These are drugs that functions to block the histamine from the receptors to cure allergic reaction like swelling, inflammation, itch, runny nose and sneezing.
