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vagabundo [1.1K]
4 years ago
9

Explain Darwin's theory of natural selection?

Biology
1 answer:
Ksju [112]4 years ago
8 0
<span> "More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive." -https://www.google.com/search?q=Darwin%27s+theory+of+natural+selection&oq=Darwin%27s+theory+of+natur...
Basically what that means hun is that Darwin believed in a sort of adaption. That each generation was better adaptable to the environment and those who were healthier "survival of the fittest" would be more likely to survive. ^.^ Hope this helps! 



</span>
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Neuropathy of the hypothalamus can cause difficulty in regulating core body temperature so that it fluctuates more widely than e
vaieri [72.5K]

Body maintain Homeostasis by Negative Feedback mechanism. Because the stimuli causing the disturbance in the Homeostasis of the body is to be counteracted by a mechanism.

<h3></h3><h3>What is homeostasis?</h3>

The Homeostasis of the body is defined as the regulation of the internal environment of the body when there is a change.

In Positive feedback mechanism, it increases the response of the stimuli In temperature regulation, the stimuli are hot and cold.

Both are controlled by a opposing negative feedback mechansim that is when the body temeprature increases it is decreased to normal by a negative feedback mechanism , likely when the body temeprature is decreased(cold) , the body will increase the Body temeprature to normal By a Negative feedback mechanism that is exactly opposite(opposing) to the Former Negative feedback mechanism pathway.

In termparature regulation when body temperature raises ----->detected by nerve endings in the skin--Hypothalamus -----> signal to blood vessel for dilation activation of the sweat gland-the tempertaure is maintained to normal. -> signal send to the>heat is lossed and when body temperature decreases -----> detected by nerve endings in the skin------> signal send to the hypothalamus -----> signal to blood vessel for constriction inhibition of secretion from sweat gland, shivering ---->heat is generated -->normal.

For more information regarding hypothalamus, visit:

brainly.com/question/1022285

#SPJ1

 

8 0
3 years ago
PLEASE HELP
Slav-nsk [51]

Inner mitochondrial membrane hosts several enzymes required for electron transport chain. To increase the amount of energy production per mitochondria, the inner Mitochondrial membrane is folded.

<h3><u>Explanation</u>:</h3>

Mitochondria is one of the membrane bound organelles of the eukaryotic cells. It has a bilayered membrane that has the inner membrane which is selectively permeable and the outer mitochondrial membrane which is mostly permeable.

The inner mitochondrial membrane is highly folded to form the cristae. They hosts the maximum amount of enzymes in form of 4 complexes which are required for the electron transport chain. So to host maximum amount of enzyme in the membrane and to maximise the production of ATP the inner Mitochondrial membrane is folded.

Oligomycin is a type of antibiotic that binds with the F0F1 channel blocking the flow of proton thereby blocking formation of ATP. In presence of Oligomycin, the channel is blocked, leading to the increase in the proton concentration in the innermembrane place. As the maximum concentration is reached, the NADHs aren't accepted by the enzyme for oxidation and proton donation. So they accumulate in the mitochondrial matrix.

5 0
3 years ago
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Who studies tissues, fluids, and cells of the body to help determine the presence and/or cause of disease?
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A medical laboratory technologist is the person who studies tissues, fluids and cells of the body to determine the presence and cause of a disease
3 0
3 years ago
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Vikentia [17]
Hihi!

The answer would be 2) Plenty of food! If you have plenty of food then the likely hood for more of the population to live would increase, the rest of the causes would cause decrease in the population!

I hope I helped!
-Jailbaitasmr
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Both the Psoas major muscle and iliacus muscle insert on the __________. intertrochanteric crest greater trochanter of the femur
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Answer: The lesser trochanter of the femur

Explanation:

I just typed it and it said correct on the same question

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