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Leni [432]
3 years ago
12

How many chambers does a frog heart have and why is this advancement necessary for a land animal?

Biology
1 answer:
Galina-37 [17]3 years ago
5 0
A frog heart has 3 chambers, 1 ventricle and 2 atria. One atrium (the right) receives deoxygenated blood from the frog's body (in the systemic circulation) and then pumped to the single ventricle wherein it will go to the lungs to be oxygenated. Another atrium (the left) received oxygenated blood from the lungs then pumped to the single ventricle wherein it will go to the systemic circulation. In the single ventricle, some form of mixing of the oxygenated and deoxygenated blood happens but since the frog is a cold blooded animal, the decrease in the concentration of oxygen is deemed superficial. 

This advancement allows the frog to live on land using the lungs as the primary organ for oxygenation of the blood. 
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What can you tell about an igneous rock that has a fine texture?
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Answer:c

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In guinea pigs, dark hair (D) is dominant over light hair (d) and curly hair (C) is dominant over smooth hair (c). Complete a di
Alexxx [7]
P:               DdCc          x           DdCc
g:      DC  Dc  dC  dc           DC  Dc  dC  dc

1.)
 
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dC        DdCC                   DdCc               ddCC              ddCc
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3 years ago
If cancer occurs only in dividing cells, how can the brain develop cancer even though all brain cells are differentiated and don
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7 0
3 years ago
As we know three most common house hold fuse value sare 3A,5A and 13A.
Reptile [31]

The list of household electrical appliances categorized according to their power consumption and what fuse they will use are:

<u>3A Fuse </u>

  • A table lamp,
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  • Blender,
  • Refrigerator  
  • Deep freezer etc.

For every appliance that is rated between 700 and 3000 watts, it's plug should have a 13-amp fuse installed onto it.

<h3>What is a fuse value?</h3>

A fuse rating is the amount of current required to blow (break) the fuse. When a fuse blows, it disconnects power from an electrical system.

The fuse rating is generally printed on the fuse itself. The fuse rating is often expressed in 'amps,' which is the standard measurement for electrical current.

<h3>Why are electrical fuses important?</h3>

If an appliance malfunction results in an excessive current flow, the fuse shuts off the circuit.

If something goes wrong, this safeguards both the wiring and the appliance. A wire that melts easily is within the fuse.

Learn more about fuse values at;

brainly.com/question/23959921

#SPJ1

Full Question:

As we know that the three most common household fuse values are 3A, 5A, and 13A.

Make a list of your household electrical appliances. Divide them into three groups according to their power consumption to decide what fuse should be fitted in the plug for each of them.

6 0
2 years ago
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