Stroma is what's connecting the stack of thylakoids (granum) with each other
When food is in limited supply, there will be an increase in competition among individuals of species that consume that food. As the food becomes more limited, the species population will become smaller, since there is not enough food. A severe limitation, for a prolonged time, would likely cause the remaining members to die out of that area, unless the species makes an adaptation that would allow them to survive.
B because cactus' are usually in a dry environment, they close their stomata during the day to keep water vapor from leaving the plant. Instead they do their processes at night to avoid extreme water loss.
B. Steroid hormone
This is because most hormones are steroids, that send long distance signaling throughout your body.
Answer:
aorta
Explanation:
The aorta and its branches carries the blood to all the body's tissues.