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Vesna [10]
3 years ago
7

1. An arch is a landform formed when wind picks up tiny bits of rock and sand and blows them against

Chemistry
1 answer:
Strike441 [17]3 years ago
8 0

Answer:

B

Explanation:

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In response to action potentials arriving along the transverse tubules, the sarcoplasmic reticulum releasesA) acetylcholine.B) s
stealth61 [152]

Answer:

Calcium ions.

Explanation:

The generation of the action potential helps in the transfer of information to the different body parts. This potential occurs to the difference in membrane potential inside and outside of the cell.

The sarcoplasmic reticulum is the homologous to the endoplasmic reticulum of the cells. The sarcoplasmic reticulum contains calcium ions in it and releases the stored calcium ions on the generation of the action potential. This calcium ion is important for the action of the actin and myosin.

Thus, the correct answer is option (D).

7 0
3 years ago
How many liters of 0.1107 M KCI contain 15.00 g of KCI (FW 74.6 g/mol)? O0.02227 L O 0.5502 L 01661 L O 1.816 L 18.16 L
Greeley [361]

Answer:

1,816 L

Explanation:

Molar concentration or molarity is a way to express the concentration of a chemical in terms of moles of substances per liter of solution.

To obtain the liters of this solution you must convert moles/L to g/L with formula weight (FW), thus:

0,1107 mol of KCl / L × (74,6 g / mol) = 8,258 g of KCl / L.

It means that in one liter you have 8,258 g of KCl. Thus, 15,00 g of KCl are contained in:

15,00 g × (1 L / 8,258 g) = 1,816 L

I hope it helps!

3 0
3 years ago
A train travels at a speed of 80 mph. How far does the train travel in 2 h 42 min?<br> miles
VikaD [51]
2h 42m = (2+42/60)h = 2.7h
80mi/h x 2.7h = (80*2.7)mi = 216mi
4 0
3 years ago
The glucose molecule has a large quantity of energy in its _____.
salantis [7]
Glucose is C6H12O6 and the energy is located in its C-H bonds
7 0
3 years ago
The best definition of a proxy record is:
Rashid [163]
I believe the answer is option D !!
3 0
3 years ago
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