To ensure the continuity of the species
increase variation in species for natural selection to occur
The correct option is B
Uranium is a radioactive element and its mining has many disadvantages. Th principal disadvantage of uranium mining is its radiations, which can cause severe health problems. The mining of uranium also have serious negative impacts on both air and water. Both the quality and the quantity of surface water and underground water are usually affected negatively by uranium mining.
Answer:
The relationship between photosynthesis and cellular respiration is such that the products of one system are the reactants of the other.
Explanation:
For example, the output of photosynthesis is the input of glucose production or cellular respiration. The output of glucose production is the input of photosynthesis. Photosynthesis involves the use of energy from sunlight, water, and carbon dioxide to produce glucose and oxygen. Cellular respiration uses glucose and oxygen to produce carbon dioxide and water. To emphasize this point, even more, the equation for photosynthesis is the opposite of cellular respiration.
Answer:
The cells need water to maintain their metabolic functions, the way water enters through cells membranes is by osmosis.
Explanation:
The cell membrane is a lipidic bilayer composed of phospholipids and embedded proteins. Phospholipids have the characteristic of being amphiphilic which means that possess hydrophilic and lipophilic characteristics. The most common way is by osmosis, that is a mechanism that moves water from high concentration to less concentration of water. In the cell membrane, there are is channels of proteins called aquaporins that facilitate the pass of water through the membrane. Also, as water is a very small molecule without charge, this characteristic allows passing a limit amount of water molecules through the hydrophilic characteristic of membranes.
