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Alexxx [7]
2 years ago
5

In figure 32-3 a muscle that moves food through your digestive system is shown in

Biology
2 answers:
Dmitry [639]2 years ago
5 0

Answer:

Option B.

Explanation:

Smooth muscles are spindle shaped, non-striated muscles and have uninucleated fibers. They are involuntary muscles and are found in the walls of internal organs such as the organs of digestive system. Peristalsis of smooth muscles of digestive system creates a wave like pattern of muscle contraction and moves the food through the system. Images A and B represent skeletal and cardiac muscles respectively both of which have striated fibers.

Levart [38]2 years ago
4 0
<h3><u>Answer;</u></h3>

B

<h3><u>Explanation;</u></h3>
  • B are smooth muscles.
  • Smooth muscle is found in the walls of hollow organs throughout the body.
  • Smooth muscle contractions are involuntary movements triggered by impulses that travel through the autonomic nervous system to the smooth muscle tissue.
  • <u>The smooth muscle of the alimentary canal or the digestive tract facilitates the peristaltic waves that move swallowed food and nutrients.</u>
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List two ways in which the biosphere would be impacted if there were no hydrosphere. Use complete sentences. ​
inn [45]

Answer:

The hydrosphere refers to the water on the earth crust. If there were no hydrosphere, we would not have lakes, oceans, rivers, or even a hose full of water.  

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2 years ago
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In a hypothetical population of plants, flower color is determined by a single gene with two alleles. In a population of 500 pla
blondinia [14]

Answer:

In the F1 generation

RR = 0%

Rr = 50% (or 0.5)

rr = 50% (or 0.5)

Explanation:

A pink flowering plant has the genotype Rr. It is heterozygous for the allele. The alleles for this gene appears to show incomplete dominance, as the heterozygous phenotype is a blend of the two homozygous genotypes.

A white flowering plant has the genotype rr. It is homozyogous for the white allele

A punnet square of the cross is shown.

The resulting punnet square shows that only Rr and rr genotypes are possible, at a ratio of 50:50 (or 1:1). Therefore, the genotype frequency of Rr is 50%, and rr is 50% in the F1 generation. This can also be written as 0.5. It is not possible to get a red plant, as the genotype RR can not come from this cross

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8 0
2 years ago
An effective strategy for stepping in if someone appears to need help is
LenKa [72]

Answer:

An effective strategy for stepping in if someone appears to need help is <u>directly check in with the person</u><u>.</u>

Explanation:

Many a time, our closed ones will be fighting battles we are unaware of. We are so busy in our lives that we either do not notice the problems of our loved ones or we just think that if they need help from us, they will ask it themselves. But we shall realize the fact that many people will not ask for help themselves due to certain reasons.

So, it is best to always check upon the persons you love if you think that they might need any help.

5 0
3 years ago
Respiration links up the simple sugar oxygen with the gas
My name is Ann [436]

Answer:

Respiration links up the simple sugar, <u><em>glucose</em></u><em>,</em> with the gas <u><em>oxygen .</em></u>

Explanation:

In the process of respiration, oxygen is used to breakdown glucose. Water and carbon dioxide are produced due as a result of this reaction. A huge amount of energy, in the form of ATP is also released during this process. ATP is used by almost every cell of the body to carry out normal cellular functions. Energy is mainly stored in the linkage between the second and third phosphate of an ATP molecule.

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3 years ago
Receptors for acetylcholine are located on the
elena-s [515]

Answer:

plasma membrane of the target cell

Explanation:

There are two main types of acetylcholine (ACh)receptors:

  1. muscarinic ACh receptors (because muscarin as agonist) which are G-protein coupled receptors that initiate slow response. Mostly, they are located in the central nervous system-CNS (involved in the release of neurotransmitters), heart (control of the heart rate), smooth muscles (contraction).
  2. nicotinic ACh receptors (nicotin is agonist) which are  ligand-gated ion channels involved in the fast response. They are located at neuromuscular junctions but also in CNS (involved in synaptic transmission between two neurons).
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3 years ago
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