Answer:
mantle
Explanation:
The mantle has lava, and lava is hot. When lava gets close to water, it heats it.
Humans ferment lactic acid in muscles where oxygen becomes depleted, which is why sometimes if you finish a run and don't stretch soon you have have discomfort. <span />
Answer:
b) Channel pumps
Explanation:
The channels are the transmembrane proteins that serve in the passive transport of substances down the concentration gradient. The channels can be gated or non-gated. The gated channels are opened and closed in response to certain stimuli such as electrical change.
For example, aquaporins are the gated water channels that transport the water across the plasma membrane. The process is driven by the osmotic gradient and does not use the energy of ATP.
As viruses cannot reproduce by themselves, they depend on the host cells that they infect to reproduce
Interphase, lasting 18 of the 20 hours cycle
