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Molodets [167]
3 years ago
14

4. Lily is studying the core of Earth. Which sphere is she examining?

Biology
2 answers:
erastovalidia [21]3 years ago
5 0
Lithosphere is the anwser
professor190 [17]3 years ago
4 0

Answer:

lithopspere!~ have a great ay !~

Explanation:

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Acetylcholine receptors on skeletal muscles are described as being ionotropic receptors because
DerKrebs [107]

Answer:

they are Na+, K+ and Ca2+ ion channels.

Explanation:

Ionotropic acetylcholine receptors are also called nicotinic acetylcholine receptors because beside acetylcholine (Ch) they respond to nicotine. These receptors are  primary receptors in muscle for motor nerve-muscle communication that controls muscle contraction.

Two molecules of ACh are required for receptor to open. Since the receptors are  linked to ion channels, the channels open. Opening of the channel allows positively charged ions to move across it: sodium enters the cell and potassium exits.

3 0
3 years ago
When we hear the word bacteria, we probably think of disease transmission or illness. But bacteria provide many
Rina8888 [55]

Answer:

A is the correct option

Explanation:

In the pharmaceutical industry, bacteria are used to produce antibiotics, vaccines, and medically-useful enzymes.

8 0
2 years ago
Read 2 more answers
Which biological process has genetic variation as a natural advantage?
adelina 88 [10]

Answer:

S**ual reproduction

Explanation:

mixing of DNA from two different germ cells

3 0
2 years ago
The centromere is a region in which A) new spindle microtubules form. B) chromatids are attached to one another. C) the nucleus
mafiozo [28]
<h2>Option (B) is Right Answer</h2>

Explanation:

    (B) chromatids are attached to one another

  • <em>The linkage between the sister chromatids </em>is particularly critical at centromeres because it ensures right <em>microtubule connection to the kinetochores </em>
  • In eukaryotes, a centromere is a district of DNA that is responsible for the development of the imitated chromosomes into the<em> two daughter cells during mitosis and meiosis</em>
  • There is one centromere on every <em>chromosome and centromeres are responsible for two major functions</em>
  • In eukaryotes, a centromere is a district of DNA that is responsible for the development of the imitated chromosomes into the  <em>two daughter cells  during mitosis and meiosis</em>
4 0
3 years ago
The nurse administers an oral preparation of liquid Tylenol 650 mg is ordered. Afterward, the patient indicates he had been rece
timama [110]

Answer:

Answer is C. the nurse did not violate the five rights.

Explanation:

The 'five rights' is a system which must be adopted, especially by the nurse in the administration of the drugs to the patient. This system is very important because, it will prevent causing harm to the patient and reduce medication error.

The 'five rights' are

* Right patient

* Right drug

* Right dose

* Right route

* Right time.

In this case, the nurse followed all the five rights in the administration of the liquid Tylenol 650 mg.

3 0
3 years ago
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