The answer is <span>B. immune cells that are destroyed by HIV
CD4+ are immune cells (white blood cells) and are an important part of the immune system. Their name comes from the presence of CD4 glycoprotein on their surface. HIV uses CD4 glycoproteins on the surface of CD4+ cells to entry into the cells. The consequence is a reduced number of those cells. Therefore, CD4+ immune cells are destroyed by HIV.</span>
Answer:
C Matter and energy can be credited or destroyed
Answer:
Capillarity
Explanation:
Capillarity is the rising and falling of liquid in a narrow tube
Answer:
three steps: initiation, elongation, and termination.
Explanation:
- initiation pertains to the beginning of a state or of a process
- elongation refers to the state, act, or process of lengthening
- termination refers to the state, act, or process of reaching the end or bringing to an end.
Answer: A - Rods are more numerous than cones
Explanation: Rods are found everywhere in the retina except the fovea (a tiny pocket in the retina where just about all of the cones are located).
B. The macula lutea is another word for fovea, no rods are found there.
C. Rods are utilized in low-light conditions and are not <em>sensitive</em> to wavelengths of light.
D. Cones are responsible for perceiving color and not rods.
E. The main function of the rods is to help us see in low-light conditions (scotopic vision), so this answer would be incorrect.
