1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katovenus [111]
2 years ago
13

Arrange the following steps for contraction in the correct sequence.

Biology
1 answer:
Kryger [21]2 years ago
3 0

Answer:

Explanation:

Muscle contraction is stimulated by the movement of an action potential moving along a nerve fiber to the muscles. This event follow some series of process before being stimulated.

1. The impulse arrives at the synapse and travels through the transverse tubules.

2. The muscle impulse reaches the sarcoplasmic reticulum and calcium is released.

3. Calcium floods the sarcoplasm and binds to troponin molecules leaving active sites.

4. Tropomyosin molecules bind to exposed active sites, linking actin and myosin.

5. Thin filaments are pulled over the thick filaments.

6. The muscle fiber shortens and contracts.

You might be interested in
Aidan has had non stop diarrhea all day and is severely weakened. why is his nurse concerned?
Alexandra [31]
Diarrhea can be caused by indigestion, a raw meal, or little bacterias found in almost anything we swallow, but if it doesn´t stop in a 12 hours period, it may be caused by some infection or a worse condition that need to be seen by a doctor, is this case, the nurse is concerned because Aidan is severely weakened, signal that is dehydrating very fast and that could cause him a worse condition such as hypotension, hypoglycemy or even losing consciouness.
3 0
3 years ago
A good way for an adolescent to build and protect her bones is to:
muminat
The best way for adolescent to build and protect his or her bones is to ingest food products that are rich in calcium for it is known to make bones stronger. Another way is to be able to do exercise as a daily routine so that the bones are exercised every day to prevent bone disease, this will stenghten the bones and make them more stronger.
4 0
3 years ago
5. A dedicated earth science student using
const2013 [10]

Answer:

(2) 988.5 mb.

Explanation:

The air pressure descends as we ascend. In other words, they are inversely proportional.

The air pressure descends as we ascend the mountain because the air molecules that are above us in high altitudes are fewer than the number of air molecules that are above us in the base of the mountain. So, the exerted pressure of the molecules on ourselves is lower in high altitudes.

Due to the reason mentioned above, we can deduce that the only correct option is option number two since the other ones show increasing or the same pressure, which is not possible as we ascend.

3 0
2 years ago
How do scientists separate the layers of the atmosphere
natali 33 [55]
<span>Well, there are five layers in the Earth's Atmosphere:

(In order from the inside out)

1) Troposphere
- This is where weather occurs.

2) Stratosphere
- This is the layer where jets fly, this is where jet-streams are found

3) Mesosphere
- Meso ("Middle") named because it is in the middle. This is where meteros burn up in the atmosphere.

4) Thermosphere
- Thermo ("Heat") Names because it is the hottest layer in the atmosphere. This is where the aurora borealis, or northern lights occur.

5) Exosphere
- Exo ("Outer") This is the outmost layer and it is where the atmosphere merges with outer space.</span>
7 0
2 years ago
You are a doctor working in sierra leone. a patient presents with fever, vomiting, bleeding and a brain infection. which would b
Semenov [28]
I would diagnose the patient with lassa fever. Lassa fever is an acute viral illness which lasts for 4 weeks. It occurs mostly in west Africa and Sierra leone is found in west Africa. Some of it's symptoms are fever, nausea or vomiting, headache and diarrhea. In severe cases bleeding will occur.
6 0
3 years ago
Other questions:
  • Which of the following colors of soil is the best for a wildlife habitat
    6·2 answers
  • Name 3 parts of a flower and describe what it does
    15·1 answer
  • Do molecules move in a solid substance?  Make sure you support your answer with good reasons and examples.
    15·2 answers
  • What is biology means
    12·2 answers
  • Can anyone tell me how lung cancer interferes with the homeostasis of the body ?
    6·1 answer
  • What human-made structures do you see from 100m?
    8·2 answers
  • Tamiflu is a common medication given for influenza treatment, its action being to protect and block sialic acid molecules on the
    15·1 answer
  • Which of these is the BEST way to assure a healthy animal stays healthy?
    5·1 answer
  • What is the correct clases for this drugs <br> Promethazine<br><br> heelp me please
    15·1 answer
  • How would you differentiate between pollen cells and algae cells
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!