T cells. When HIV arrives in the lymph nodes – around 24 to 48 hours after exposure – they activate other immune cells, such as CD4 t-cells, HIV's primary target.
12/44 = 0.2727
(X100)
= 27
( therefore the percent mass of carbon in carbon dioxide is 27%)
Answer:
D. Which cell organelles carry out the process of photosyinthesis and cellular respiration?
Answer:
Interphase
Explanation:
Eukaryotic cells have two parts of the cell cycle: Interphase and mitotic phase. It is the interphase in which a cell typically spends most of its time. During interphase, a cell grows and carries out the metabolic activities for regular growth and maintenance.
The structures that are responsible for the movement of chromosomes to the center of the cell in metaphase is the spindle fibers, the cell attaches the centromeres to the spindle fibers to pull the sister chromatids to the center
In anaphase the sister chromatids are separated at the centromere and are pulled to the opposite poles of the cell by the spindle fibers
