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Elan Coil [88]
3 years ago
10

What do cells want to being in and what do cells want to keep out

Biology
1 answer:
PilotLPTM [1.2K]3 years ago
4 0

Answer:

Cell membranes serve as barriers and gatekeepers. ... Small polar molecules, such as water and ethanol, can also pass through membranes, but they do so more slowly. On the other hand, cell membranes restrict diffusion of highly charged molecules, such as ions, and large molecules, such as sugars and amino acids.

Explanation:

Hope it helps :)

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Which of the following helps explain how a rainbow of colors can form when sunlight passes through a prism?
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Answer:

As the white light moves through the two faces of the prism, the different colors bend different amounts and in doing so spread out into a rainbow. In a rainbow, raindrops in the air act as tiny prisms. Light enters the raindrop, reflects off of the side of the drop and exits.

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3 years ago
Hypothesis that states that the continents were once one large mass that broke apart?
Talja [164]

Answer:

Continental drift

Explanation:

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3 years ago
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The building block of nucleic acids are ___________. These consist of a sugar, a phosphate and a ___________ base. The bases fou
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How does the circulatory system interact with the digestive system ?
Alexandra [31]

The digestive system breaks down food molecules into their component parts, which are then absorbed by the circulatory system in the small intestine and circulated throughout the body. The digestive system diffuses nutrients into the capillaries and then through the circulatory system. The small intestine has folds called villi, and the villi contain tiny projections called microvilli. The microvilli absorb nutrients from digested food and transport it directly into the bloodstream where it can be used. Without the circulatory system, the body would not be able to absorb nutrients from the food we eat.

The circulatory system supplies the organs with blood and oxygen to keep them alive. Oxygen travels throughout the body including the digestive system. Like any organ, the digestive system requires more oxygen when metabolically active, for example after a meal. In addition, the digestive system plays a role in the acid-base balance in the body. Since H+ + HC03- exchanges with H20 and C02 within the intestine there is a production of carbon dioxide from the gut to the lungs.

The bloodstream carries nutrients that are broken by the digestive system from the food you eat. The circulatory system provides nutrients and oxygen to the organs of the digestive system.

8 0
3 years ago
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Four cities are located along the coast of the Pacific Ocean. City A is located at 10o N latitude; City B is located at 30o N la
Elina [12.6K]

Answer:

i think City A

Explanation:

am i supposed to put something here??????

also if u get it wrong bc of me im sorry :(

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