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Lady_Fox [76]
3 years ago
8

Structural Difference between the heart and the lung

Biology
1 answer:
coldgirl [10]3 years ago
7 0

Answer:

Heart is a muscle with 4 chambers while lungs is an organ and exists in pair

Explanation:

Heart is a form of muscle which has 4 chambers namely The right ventricle, the left ventricle, the left atrium, and the right atrium responsible for pumping blood while the lung are organs responsible for respiration or breathing. They have tiny sacs called alveoli and are found in pair.  

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In a motor reflex , such as the patellar tendon reflex, afferent action back to the spinal cord is mediated through which of the
brilliants [131]

Answer:

The correct answer will be option-B.

Explanation:

The patellar tendon reflex is the kicking movement of the lower leg in response to the tap on patellar cap used to test the L2, L3, and L4 segments of the spinal cord in the body.

The spinal cord interacts with muscles through muscle sensors called muscle spindle which signals after the stretching of the muscle. The signals are sent to the spinal cord through afferent neurons or sensory neurons which starts the reflex action to prevent overstretching of the muscle.

Thus, Option-B is the correct answer.

7 0
3 years ago
I WILL MARK BRAINLIEST!!!!
Arisa [49]

I took the test and the answer is not shear, so don't put that one. My next choice would have been strain.

8 0
3 years ago
A diagram of chloroplast stroma and thylakoid lumen showing chemical energy, ferredoxin, ferredoxin-N A D p reductase, A D P syn
antoniya [11.8K]

Answer:

If the electron transport system did not work, electrons from PSII would not be transferred to PSI. Ferredoxin would then have no electrons to transfer to NADP+ so NADPH would not be produced. This would also affect the light-independent reaction of photosynthesis because NADPH is needed in this reaction.

Explanation:

Edgenuity's Answer.

4 0
3 years ago
The fluid-mosaic model of membrane structure includes the following: A Option A: a lipid bilayer. B Option B: membrane proteins.
Mila [183]

Answer:

Option D

Explanation:

In 1972, the fluid mosaic model was proposed by S. J. Singer and G. L. Nicolson to describe the structure of the plasma membrane found I living cells. The model describes the plasma membrane to possess components including phospholipid, proteins and cholesterol.

The phospholipid is arranged in two layers comprising of glycerol, two fatty acids and a phosphate group. The fatty acids which forms the tail are hydrophobic (water-fearing) while the phosphate group is water-loving (hydrophobic) giving the plasma membrane an AMPHIPATHIC nature. The other component as proposed by the model are membrane proteins and cholesterol, all responsible for the fluidity of the membrane.

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Why are identical twins not considered clones?
CaHeK987 [17]
Identical twins could not be considered as clones for they are different individuals which came from the same egg and sperm. Clones are produced asexually, a copy of another organism. Even though identical twins share the same DNA, they have different qualities as of the other twin which makes them their own unique self. 
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4 years ago
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