Answer:
In cells, some molecules can move down their concentration gradients by crossing the lipid portion of the membrane directly, while others must pass through membrane proteins in a process called facilitated diffusion.
Explanation:
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B. Protista
Bcoz in kingdom protista
Euglenoids and slime moulds are present - having characteristics of both plants and animals..
And protozoans are also present-primituve relatives of animals.
The statement is true. Atelectasis is the collapse or closure of a lung resulting in reduced or absent gas exchange. It may effect part or all of a lung. An airway blockage also can cause Atelectasis. A blockage may be due to a foreign object, a mucus plug, lung cancer, or a poorly placed breathing tube from a ventilator. When a blockage occurs, the air that's already in the air sacs is absorbed into the bloodstream.
Answer: deposition
Explanation:
Deposition. The opposite of sublimation is deposition. This is the process in which a gas changes directly to a solid without going through the liquid state.
