Cell membranes protect and organize cells. All cells have an outer plasma membrane that regulates not only what enters the cell, but also how much of any given substance comes in. Unlike prokaryotes, eukaryotic cells also possess internal membranes that encase their organelles and control the exchange of essential cell components. Both types of membranes have a specialized structure that facilitates their gatekeeping function.
i am not very good at science but i still want to help so i search it up for you
(i searched it up on Bing)
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
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The poles never get any direct sunlight.
They both get the same amount of sunlight.
- Because they receive no direct sunshine, the Arctic (North Pole) and Antarctic (South Pole) are both chilly.
- Even at the height of summer, the Sun is low on the horizon. The Sun doesn't rise at all for several months during the winter since it is so deep below the horizon hence poles don't have equal amounts of sunlight and darkness.
- The poles receive less energy and heat from the sun because of the tilt of the earth and its orbit around the sun. There are just two polar seasons as a result: summer and winter.
- The tilt of the Earth's axis causes the Poles to experience around six months of day and six months of night.
- Due to this tilt, each Pole spends roughly six months angled both toward and away from the Sun. The North Pole experiences six months of nonstop daylight when it is inclined toward the Sun.
- In the winter, the Sun sets for extended periods of time since it is so deep below the horizon. Therefore, the days are chilly and dark, much like the nights. The South Pole and North Pole receive the same amount of sunshine despite being "polar opposites."
learn more about poles here: brainly.com/question/1776073
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There are four forces of evolution: mutation, gene flow, genetic drift, and natural selection.
Mitocondria, the power house of a cell.
