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katovenus [111]
4 years ago
5

What moves the food from your mouth to your stomach when you swallow? undulatory muscle contractions pressure difference between

zones peristaltic muscle contractions gravity?
Biology
2 answers:
Fantom [35]4 years ago
3 0
The appropriate answer is the peristaltic muscle muscle contractions.
Peristalsis, involves involuntary movements of the longitudinal and circular muscles, primarily in the digestive tract but may take place in other hollow tubes of the body, that occur in progressive wavelike contractions. Peristaltic waves occur in the esophagus, stomach, and intestines.
Yuri [45]4 years ago
3 0
<span>The correct answer is peristaltic muscle contractions.
</span>  Peristaltic muscle contractions include contraction and relaxation of smooth muscles that produce a peristaltic wave, which propels the bolus (mix of food and saliva which travels down the digestive tract). Muscles contract behind the bolus to prevent it from being squeezed back into the mouth and the rhythmic contractions work to rapidly force it into the stomach.
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You call an exterminator to your house because you have noticed many nymphs of a specific insect everywhere in your cupboards. T
brilliants [131]

Answer:

The correct answer is - option C.

Explanation:

The case in this the biological exterminators asks to use the biological concept which includes spraying the solution of the juvenile hormone to get rid of nymphs of specific insect and according to the assumption, this solution causes some alteration on the ability to reproduce of such nymphs and leads to only nonreproductive ones.

On the given condition the increasing of nymphs, the number of adult nymphs or decreasing of nymphs can not be condition and as the reproductive ability is affected the number of nymphs would be the same.

Thus, the correct answer would be - option C.

7 0
3 years ago
How does pH affect cells and cellular processes
wel
The slightest change in pH can destroy the substance or organism. The pH of a cell's interior helps regulate the cell's chemical reactions. For example, the pH of blood is 7.4, if blood falls to 6.8 or lower or 8.2 or higher, it results in death.
6 0
3 years ago
Name 4 body systems that are involved in getting oxygen to your cells
storchak [24]
<span>The respiratory system, circulatory system, muscular system, and nervous system.
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4 0
3 years ago
If you have normal vision, your eyes are not covered, and you are in a well-lit area, then opening your eyes is a necessary and
grandymaker [24]

Answer:

true

Explanation:

When your eyes are not covered and you are in an area with good lighting, then opening your eyes would certainly be a necessary thing to do to be able to see and this makes your vision to be normal.

According to Leo Gross, you can have a normal vision if you are 20 feet away from a particular spot and you see what a normal person sees on that same spot. There is the Snellen chart one is also expected to read in that position, so maintaining a normal vision means someone has 20/20 vision.

3 0
3 years ago
A bumblebee buzzes past you at 3 m/s. The frequency of the hum made by its wings is 152 Hz. Assume the speed of sound to be 342
monitta

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Explanation:

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3 years ago
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