Chemokines act as chemoattractants. They lead <span>to the migration of immune cells to an infection site so they can target and destroy invading bodies such as microbes. Hope this helps.</span>
<span> humanity is a quantity representing the amount of water vapor in the atmosphere or a gas.
And yes that would be correct
Hope this helps c;</span>
The correct answer is d. 3.5 billion years.
Prokaryotes were the first forms of life on Earth long before simple multicellular life appeared because of their ability to withstand extreme conditions. It is believed that the first living forms were bacteria combined with archaea in the microbial mat (multi-layered sheet).
Answer:
B. Mitochondrion
Explanation:
The Krebs Cycle occurs in the mitochondria during the processes of cellular respiration.
Specifically, it occurs in the matrix of the mitochondria.
