Answer: b overreacts to an antigen
Explanation:
Answer:
C4 plants—including maize, sugarcane, and sorghum—avoid photorespiration by using another enzyme called PEP during the first step of carbon fixation. ... PEP fixes carbon dioxide into a four-carbon molecule, called malate, that is transported to the deeper bundle sheath cells that contain Rubisco.
Explanation:
It gets its nourishment from its mother. The human embryo is connected to its mother by a placenta through which materials are passed.
Answer:
Viruses have been concluded non-living
Explanation:
It is true viruses have living qualities such as reproduction and environment adaptability. However, they lack being composed of cells and the inability to undergo homeostasis. Because a virus contains both, but also doesn't meet the requirements to be one or the other is why it's said to be in the "grey area".
