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Nezavi [6.7K]
3 years ago
8

What is the meaning of selective premeable

Biology
1 answer:
Flura [38]3 years ago
8 0

Answer:

Selective permeability is a property of cellular membranes that only allows certain molecules to enter or exit the cell. ... Movement across a selectively permeable membrane can occur actively or passively. For example, water molecules can move passively through small pores on the membrane.

Explanation:

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Which process is a squeezing motion of the circular layer of smooth muscle in the small intestine?
Over [174]

Segmentation is a squeezing motion of the circular layer of smooth muscle in the small intestine.

<h3>What is segmentation in the small intestine?</h3>

Segmentation, which mostly affects the small intestine, is made up of localized contractions of the Gastro-Intestinal tract's circular muscle. These contractions separate out little portions of the intestine, allowing their contents to move back and forth while being continuously divided, broken up, and mixed.

Our intestines' circular muscles contract during segmentation to churn food back and forth, rather like a washing machine. This churning helps break down food into tiny bits for digestion by allowing it to mix with gastric secretions in the intestines. By bringing chyme into contact with the intestinal walls during segmentation, the technique also helps to increase absorption.

Learn more about segmentation here:

brainly.com/question/2133778

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4 0
1 year ago
What percentage of the Earth's surface do forests cover? 20% 30% 40% 10%
fiasKO [112]

30% of the earth's surface is covered by forests.

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7 0
3 years ago
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You decide to create a composting bin for your house. While checking on it one day, you notice that the compost bin has started
dalvyx [7]

Answer:

Turning the pile to aerate the compost and expose it to oxygen will help resolve the smell

4 0
3 years ago
Describe the<br> relationship<br> between the age<br> of rock layers and<br> an unconformity
marshall27 [118]

Answer:

Laws of stratigraphy help scientists determine the relative ages of rocks. This law states that deeper rock layers are older than layers closer to the surface. An unconformity is a gap in rock layers. They occur where older rock layers eroded completely before new rock layers were deposited.

Explanation:

The study of rock strata is called stratigraphy. The laws of stratigraphy can help scientists understand Earth’s past. The laws of stratigraphy are usually credited to a geologist from Denmark named Nicolas Steno. He lived in the 1600s.

Hope this helps!

Brain-List?

3 0
3 years ago
The mass of some corn plants at the end of their growth period was 6 tons per acre. Most of this mass was produced from?
Aleksandr [31]
<span>The majority of mass of any plant is produced from water from the soil and carbon dioxide with sunlight from the air. 6 CO2 + 6 H2O + sunlight ---> C6H12O6 + 6 O2 ... The gluclose (C6H12O6) is a simple sugar that becomes the biomass of the plant. Other minor contributors to the mass are from fertilizers (mostly N, P, and K) and minerals.</span>
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3 years ago
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