Answer:
d) passage of a solute against its concentration gradient
Explanation:
When a solute is transported against its concentration gradient, the cells use metabolic energy. To move a substance from the region of its lower concentration to that of its higher concentration, the energy of ATP hydrolysis is utilized. These types of transport mechanisms are called active transports. If ATP hydrolysis is inhibited in a cell, it would not be able to perform the uphill movement of solutes due to the lack of any source of energy to drive the process.
Carnivores (meat eaters): lion, wolf, polar bear. herbivores (plant eaters): cows, beaver, deer. omnivores (both meat and plant eaters): bears, humans, hedgehogs.
Abiotic features are not living. they may play a role in helping biotic creatures live, but them theirselves do not live.
Alleles are two different forms of a single gene.
Answer:
The acidity level of water is measured by the pH scale. Pure water has a pH of 7, which is neutral. However, natural rainwater actually has a pH of 5.6 because it gets exposed to the gases in the atmosphere, making it a bit acidic. True acid rain will have a pH level measuring from 5.0-5.5.
