Low silica content,thick and fluid,forms dark colored rock.
Answer:
pollination
Explanation:
this is the obvious answer because pollen and **pollen**ation
The correct answers for this question are these:
<span>What could happen if the DNA replication process encounters an error while coding?
- An acquired mutation would occur.
- No noticeable errors would occur to the organism because not all DNA codes for proteins.
- DNA would convert into RNA.
- A mutated trait could be exhibited</span>
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.
There are two types of cell division: mitosis and meiosis. Most of the time when people refer to “cell division,” they mean mitosis, the process of making new body cells. Meiosis is the type of cell division that creates egg and sperm cells.
- thus the answer is <u>mitosis</u>
