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11Alexandr11 [23.1K]
3 years ago
5

Explain why respiratory surfaces must be moist​

Biology
2 answers:
kvv77 [185]3 years ago
8 0

Answer:

In animals, the process of respiration is aerobic respiration, exchange of gases takes place ( carbon dioxide leaving the cell, oxygen entering)

Single cellular organisms can exchange gases directly across their cell membrane through the process o diffusion.

Large animals cannot maintain gas exchange by diffusion across their outer surface. A respiratory surface is covered with thin, moist epithelial cells that allow oxygen and carbon dioxide to exchange. Those gases can only cross cell membranes when they are dissolved in water or an aqueous solution, thus respiratory surfaces must be moist.

Explanation:

bogdanovich [222]3 years ago
4 0

Answer:

so that carbon dioxide and oxygen can exchange

Explanation:

Those gases can only cross cell membranes when they are dissolved in water or aqueous solution.

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The epigastric region is a portion of the cavity. multiple choice pelvic pleural vertebral abdominal
svetlana [45]

The epigastric region is a portion of the <u>abdominal </u>cavity.

The correct option is d.

The greatest hollow area in the body is the abdominal cavity. Its lower limit is the upper plane of the pelvic cavity, and its upper barrier is the diaphragm, a sheet of muscle and connective tissue that divides it from the chest cavity. The spinal column, as well as the abdomen and other muscles, encircle it vertically.

The epigastrium is the top portion of your abdomen that is immediately below your rib cage. The epigastrium houses your pancreas and the duodenum, a section of your small intestine. Additionally, your stomach and liver are partially located here.

To learn more about epigastric region, refer

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6 0
2 years ago
Which of the following examples best reflects selective breeding?
leonid [27]

Answer:

A The mating of two particular sheep to produce thicker wool

Explanation:

Selective breeding, also known as artificial selection, is the process in which people will choose two parent organisms to breed and create offspring with desired characteristics. In this case we want the sheep to breed and produce thicker wool.

6 0
3 years ago
The stage of infection from the time a pathogen enters your body until symptoms appear is known as the _______________ stage.
Sophie [7]
Incubation stage is the stage where the prepares and begins a full on assault of your body.
6 0
3 years ago
Some plants have reproductive structures that help them reproduce using natural forces or animals. How does the reproductive str
mario62 [17]

Answer:No

Explanation:Plants will not just have to rely on one animal to help reproduce. Plants can mimic things such as scents or looks to be an incentive for other animals. Wind and water can also help transport pollen. Plants always have pollinators such as wind, water, insects, and animals. Plants use mimicry in order to attract the biotic pollinators. Plants will never have trouble reproducing because they have so many different pollinators.

6 0
3 years ago
How does random add to genetic variation ?
KengaRu [80]
<span>Sexual reproduction has the potential to produce tremendous genetic variation in offspring.<span>This variation is due to independent assortment and crossing-over during meiosis, and random union of gametes during fertilization.


Good luck!!!
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8 0
3 years ago
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