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Assoli18 [71]
3 years ago
15

The respiratory system contains which of the following structures and organs?

Biology
1 answer:
Thepotemich [5.8K]3 years ago
7 0
The answer for that question is a
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This organism uses its whiplike flagellum to propel itself through water. It has chloroplasts that allow it to perform photosynt
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Answer:

Bacteria

Explanation:

The organism is bacteria because it performs photosynthesis and can propel itself with flagella. It is not an animal because it can photosynthesize and it is not a plant because it has flagella like bacteria does.

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Parents can pass on chromosomes to their children that are different than their own when the new gene combinations are created b
hodyreva [135]
<span>Parents can pass on chromosomes to their children that are different than their own when the new gene combinations are created by crossing over. The exchange of genetic material between homologous chromosomes is known as crossing over which occurs in meiosis. When homologous chromosomes pair up and exchange different segments of the genetic material. As the result, a new combination of genes will be formed. If there was not crossing over, all genes on a chromosome would be inherited together.</span>
7 0
3 years ago
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during what phase of a muscle twitch chemical changes such as the release of calicum are according intracelluary as rthe muscles
SOVA2 [1]

<u>During </u><u>latent </u><u>phase of a muscle twitch chemical changes such as the release of calicum are according intracelluary as rthe muscles prepare for contractrion.</u>

What are the phases of a twitch contraction?

  • A single contraction is called a twitch. A muscle twitch has a latent period, a contraction phase, and a relaxation phase.
  • A graded muscle response allows variation in muscle tension.

What is a latent period ?

The amount of time that passes between an action potential being generated in a muscle cell and the beginning of muscular contraction.

What is a muscle twitch?

  • The fundamental reaction of a motor unit to a single stimulus is a muscle twitch. Muscle Twitch in three different states .
  • Excitation of the muscle fiber takes place during the latent phase, and calcium ions are released from the sarcoplasmic reticulum into the cell's cytoplasm.

What happens during latent period of muscle twitch?

  • A single muscle twitch consists of three parts. the contraction phase, the relaxation phase, and the latent period, often known as the lag phase.
  • The action potential reaches the muscle, and the latent period is the brief (1-2 msec) interval before tension is seen in the muscle.

Learn more about latent period

brainly.com/question/10696517

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5 0
2 years ago
In which part of the nephron are sodium and chloride ions actively reabsorbed?
Eva8 [605]
The part of the nephron that In which part of the nephron are sodium and chloride ions are actively reabsorbed is the Henle's loop. It <span>is the portion of a </span>nephron<span> that leads from the </span>proximal convoluted tubule<span> to the </span>distal convoluted tubule<span>.</span> It's main function is to make a concentration gradient in the medulla of the kidney. 
3 0
3 years ago
Renewable energy sources account for the majority of energy production.<br><br> t<br> f
Morgarella [4.7K]

That is false. Non-renewable energy sources are the major sources of energy production.

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3 years ago
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