The correct answer is D: I and II only.
Viruses have protein capsids, which protect their genetic material. This capsid sometimes is covered by viral envelopes which have glycoproteins on their surface. Glycoproteins help in the process of binding to the host cell and infecting it. In this example, virus III has the structure of a bacteriophage and it does not seem to have glycoproteins. Bacteriophages use their tail fibers to attach to the bacterial host and inject their genetic material. On the contrary, viruses I and II have glycoproteins sticking out of their envelopes.
They are related because the high pitch sounds correspond to the sound waves which give high and low frequencies.
Answer:
(kjbfvbkbdfjkbvdjvjfjbhuydhhbfknbrbg)(kjbfvbkbdfjkbvdjvjfjbhuydhhbfknbrbg) = 2(kjbfvbkbdfjkbvdjvjfjbhuydhhbfknbrbg)
Explanation:
(lol)
I'm hoping this question doesn't get reported
Answer:
The main function of viagra is to relax the muscles of the blood vessels in some areas of the body. It is used for the treatment of erectile dysfunction and for high blood pressure. The component of viagra is a competitor to the enzyme PDE5, breaking down cGMP. In the penis, blood is trapped, which results in the erection being maintained. When cGMP levels decrease, the concentration of calcium ions increases, causing smooth muscle contraction.
Explanation:
1. replication
2. four genetically identical cells
