Answer:
Lightly pigmented people tend to be at higher risk of vitamin D deficiency
Explanation:
BACKGROUND KNOWLEDGE:
Human skin is the largest organ of the body which makes boundary line between environment and internal conditions. Human skin cell produces pigment called melanin when ever it is subjected to Sun. More the melanin pigment produced more will be the skin darkens. Ultraviolet (UV) radiations also come from Sun and responsible for more pigmentation.
ANSWER EXPLANATION:
According to the question darkly pigmentation only occurs when their is high level of UV radiations. High level of UV radiations are also responsible for Vitamin D production.
People with lightly pigmented means that there environment has low level of UV radiations which are the requirement of Vitamin D production. Hence due to low UV radiations peoples with light pigmentation's are also be at higher risk of vitamin D deficiency
Answer:
The lowest level, which is usually the producers.
Explanation:
This is because on every level of the trophic system, some energy is lost before the next level. So the level with the least lost energy is the lowest
Answer:
The best answer is "Ocean waves add more sand to beaches"
Explanation:
based on statement above, the oceanic conditions are changes in ocean parameters (temperature and movement) and substances which contain in oceans (salinity, nutrient availability, oxygen and carbon dioxide level, etc).
Geosphere is a part of the earth that included the earth's interior, landform, rocks, and mineral. There are lithosphere, atmosphere, hydrosphere, biosphere and, anthroposphere.
on the answer choice, the ocean wave is the example of the oceanic condition which has changed in movement. and the beach is an example of the lithosphere.
Upper arm/elbows front side
