Answer:
photic zone.
Explanation:
it is a high layer of the water region. There is no land at the top of the water, if we plant the tree there, the shrub will drift into the water. There is Sufficient daylight but there is no ground.
They need water so they can survive and so they don't die of thirst
Answer:
D
Explanation:
When a substance moves from low to high concentration it is moving against its concentration gradient, which requires more energy.
A. It depends on where it is moving, not the substance
OB. This is describing diffusion
OC. Does not require energy, it is passive transport through a semi-permeable membrane
The color of a star is primarily determined by its surface temperature.
For example, the really hot stars, called White Dwarf stars, have a white surface temperature, while a cooler star would have a more red color.
