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RideAnS [48]
3 years ago
7

Describes the type of muscle action that causes the heat to beat?

Biology
1 answer:
e-lub [12.9K]3 years ago
8 0

The atria and ventricles work together, alternately contracting and relaxing to pump blood through your heart. ... The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles. The SA node sets the rate and rhythm of your heartbeat.

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Classify these substances as acidic, basic, or neutral:
Alex
Acidic substance(s):
Vinegar contain acetic acid 
Tomato Juice contain citric acid

Basic substance(s):
Baking Soda contains Sodium Carbonate

Neutral Substance(s):
In the process of producing sugar, the sugar cane juice is acidic but goes through a process where it's acidity is neutralized and as such the crystalline sugar ends up neutral
5 0
3 years ago
Which of the following would decrease the rate of an enzyme-catalyzed reaction
Hatshy [7]
Substrate Concentration I believe
3 0
3 years ago
Describe the process of photosynthesis to explain at least 1 requirement for photosynthesis that would need to be considered for
baherus [9]

Answer:

the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

8 0
2 years ago
Show a diagram of how ions are formed when a sodium atom comes into close
Firdavs [7]

Answer:

The diagram is attached below.

Explanation:

when sodium and chlorine comes close together they form anion and cation. The compound formed is called sodium chloride.

Both atoms bonded together through ionic bond.

Ionic bond:

It is the bond which is formed by the transfer of electron from one atom to the atom of another element.  

Both bonded atoms have very large electronegativity difference. The atom with large electronegativity value accept the electron from other with smaller value of electronegativity.

For example:

Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion.

7 0
3 years ago
____ The bristle worm living with the hermit crab.
Arlecino [84]

Answer:

A. Mutualism

Explanation:

<u>Mutualism</u> The bristle worm living with the hermit crab.

7 0
2 years ago
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