Answer:
I think it is mutualism because they both benefit but commensalis means one will benefit but the other will neither benefit nor be harmed
Answer:
Blood Brain Barrier(BBB)
Explanation:
This is a biological interface of special endothelial cells of astrocytes, pericytes , capillaries, neurons and other structures, acting as a physical barrier or gate separating the Central Nervous system from the peripheral blood circulations. Thus it formed a tight junction serving as a physical barrier to selectively regulate the entrance of substances from the cerebral blood flow into the brain, therefore maintaining homeostasis of the brain.
From above any substances absorbed into the blood stream irrespective of the mode of entry are transported through the BBB, and are selectively regulated to enter the brain cells by the BBB's interactions with the blood vessels, hormones etc.
Basically it allows the passage of nutrients, a few drug, hormones and resists certain toxins and pathogens for the brain homeostasis.
Answer:
prophase, metaphase, anaphase and telophase
Explanation:
The cell membrane pinches in and eventually divides into two daughter cells.
The correct answer is Metaphase
Most gases are invisible. Give it some thought. Like 2 gases your body use to breathe. The noble gases on the periodic table. The most abundant gas in the Earth's atmosphere. The one everyone is concerned about being affected by global warming. The poisonous one in some people's houses.