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KatRina [158]
4 years ago
14

Which best describes mitochondrial DNA (mtDNA)?

Biology
2 answers:
Lelu [443]4 years ago
8 0
Circular hope it helps
gogolik [260]4 years ago
6 0
Unlike other dna, mitochondrial dna is circular
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The colon is divided into two sections called the ascending transverse and descending transverse. True False
inn [45]

According to the research, the correct option is false. The colon can be divided into four sections: ascending, transverse, descending and sigmoid.

<h3>What is the colon?</h3>

It refers to the portion of the large intestine, whose function is to convert digested food waste (chyme).

It can be divided into four sections:

  • Ascending, it begins at the junction with the tenuous intestine and extends down the right side of the abdomen.

  • Transverse, which crosses the abdomen from the right side to the left.
  • Descending

  • Sigmoid.

Therefore, we can conclude that according to the research, the correct option is false. The colon can be divided into four sections: ascending, transverse, descending and sigmoid.

Learn more about The colon here: brainly.com/question/14788209

#SPJ1

6 0
1 year ago
CAN YOU GUYS HELP ME PLEASE ITS URGENT !!!! ( 15 points !!! )
olchik [2.2K]

Answer:

C.

Because plants reproduce like humans. It may seem like it is the wrong answer but it is right. I learned this in eighth grade my guy.

Explanation:

7 0
3 years ago
Approximately 60% of human genes are also found in fruit flies. About 97.5% of human genes are also found in mice. What does thi
tatyana61 [14]

This evidence suggest that all three living creatures that are mentioned have a common ancestor, even though they have been split into different types of groups of living organism millions of years ago.

Science suggests that all of the living organisms on the planet have a common ancestor. Since we are talking about a common ancestor that lived few hundred million years ago, the living organisms split into different groups, and they do not resemble each other nowadays. The fruit fly is an insect, and the humans and mice are mammals, so they are into totally different groups, and it is easy to see by the genetic evidence that they are very distantly related, but the humans and mice are much more closely related because they belong to the same super family, and their connection is much more recent.

3 0
3 years ago
Which is the order of airflow during inhalation?
Brums [2.3K]

The correct answer is B. Nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli

Explanation

The breath of living beings is divided into two processes, the first is inhalation and the second is exhalation. Regarding the first, it is the process in which the air is taken by the beings to be conducted to their lungs through their noses, passing through the nasal cavity, larynx, trachea, bronchi, bronchioles and finally alveoli where gas exchange occurs. The second process is the opposite, in which the air inside the lungs converted into CO2 is expelled, passing through the same places in an inverted manner, that is, alveoli, bronchioles, bronchi, trachea, larynx and nasal cavity. So, the correct answer is B. Nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli.

6 0
3 years ago
identify the subcellular structure of the neuron that forms the basis for the transmission of nerve impulses. (2 points) describ
melisa1 [442]

The subcellular structures of neuron that forms the basis for transmission of nerve impulses are the synaptic vesicles.

What are the steps in impulse transmission between neurons?

  • The action potential or nerve impulse reaches the <u>axon</u> of neuron and depolarises the membrane.
  • Voltage gated Calcium channels open .
  • Arrival of action potential causes the synaptic vesicle to attach to presynaptic membrane.
  • Calcium influx triggers release of neurotransmitter.
  • This neurotransmitters bind to postsynaptic membrane and new impulses are created.

Synaptic vesicle under resting condition:

  1. The neurotransmitter molecules are stored in synaptic vesicles.
  2. If the neurotransmitter leak from the vesicles, they are destroyed by enzymes.
  3. During resting condition, they are placed randomly.
  4. When an impulse reaches the axon, vesicles are arranged in the presynaptic membrane.

Thus from the above we can conclude that, synaptic vesicles are the subcellular structures in transmission of nerve impulses and , under resting condition they are placed randomly.

To know more about transmission of nerve impulses :

brainly.com/question/840056

#SPJ4

4 0
1 year ago
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