Answer:
variation in skin color.
Explanation:
The human skin color is determined genetically depending on the amount of melanin. However pigmentation can occur as a results of exposure to uv rays that causes induced pigmentation.
The sun emits two types of ultra violet rays which can reach can reach the skin namely the uva and uvb. Both type of rays can damage the skin if unprotected. Due to this there was evolution against the damaging rays. More melanin that provides a natural sunscreen to the people leaving in the tropic environment.
You can make a square decided into the amount of y, yy Y Yy YY and it will show you the amout
Answer:
Phosphorus is a significant components in the makeup of lipid bilayer.
Phosphorus is a component of
bones.
Phosphorus is a key nutrient to increase crop yield.
Explanation:
Phosphorus is an element that exist in two forms as either red phosphorus or white phosphorus. It is not found on Earth because it is very reactive. Phosphorus. It is the second most plentiful mineral in the body and it makes up to 1% weight of the food. It is found in food such as meat. It is a major component of lipid bilayer. It is a component of bones and teeth. It play important roles in photosynthesis by capturing and converting sun light energy into useful compounds. It is important to increase plants yield.
Phosphorus cycle is the movement of phosphorus from the atmosphere to the Earth and back to the atmosphere.
Primary succession occurs<span> in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. Secondary </span>succession occurs<span> in areas where a community that previously existed </span>
