In a tropical forest, there are many tall trees with long leaves that block the sunlight. This top layer is also called the canopy. Since they block the sunlight, there is only a few number of plants that can live on the ground because they don't receive enough sunlight to survive.
Arno Penzias and Woodrow Wilson discovered cosmic radiation
C, it is made up of a phosphate group and a sugar. nitrogen bases are in the middle; think of them as the “steps” in the ladder.
Answer: the environment affects natural selection because when an environment changes and a species can not adapt, they will go extinct.
Explanation:
Cells are created from existing cells is the part of the
cell theory which explains why the skin is able to repair itself. The body
produces 300 million new cells every day. After getting a cut or scratch, the
skin may start bleeding. This happens when the injury tears down the tiny blood
vessels that is found under the skin’s surface. The body wants to stop the
bleeding so the platelets will come to the rescue.
At the cut, platelets stick together. This is how the blood
clots which then become a scab. This protects the area so the cells underneath
it can have the time to heal. Beneath the scab, new skin cells multiply to
repair the wound. Damaged blood vessels are restored and blood cells end the infection
in the wound. And also, under the scab, a new skin layer is formed.
