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Stells [14]
3 years ago
8

Help solve this please I don't know how to do this

Biology
2 answers:
Jobisdone [24]3 years ago
7 0
Lung is the answer, its a breathing structure.

aliina [53]3 years ago
6 0
I don't know so yahhhhh
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Sucrose is formed when glucose is joined to fructose by a
REY [17]

Answer:

Disaccharides: Sucrose is formed when a monomer of glucose and a monomer of fructose are joined in a dehydration reaction to form a glycosidic bond. In the process, a water molecule is lost. ... In sucrose, a glycosidic linkage is formed between carbon 1 in glucose and carbon 2 in fructose.

6 0
2 years ago
What happens if you have an extra chromosome?
Trava [24]

Answer:

If a person has extra chromosome you or they might have down syndrome

Explanation:

Normally a baby inherits 23 chromosome from each parent which is equal to 46 total and basically those who survive develop down syndrome

8 0
3 years ago
Explain why mutation and natural selection make developing new flu vaccines every year necessary
Serhud [2]
Let's just say that everyvyear, many people either get the vaccination, or the flu. These people are left immune to the strain of flu that they were vaccinated/infected with so the number of people who can get and pass on that form of flu (think of these people as that flu strain's "habitat") is reduced. If some of that flu mutates sufficiently that the immune systems of those previously infected vaccinated people no longer recognize it, then it's habitat is expanded back to the original size again.

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7 0
3 years ago
A population of birds lives on a small island. Another population of the same species lives on the mainland. The distance betwee
Lera25 [3.4K]

Answer: B) an increase in gene flow between the bird populations.

Explanation:

The formation of tiny island will connect the island and the mainland. The distance between the two habitats will reduce due to the tiny island which can also become another habitat for birds. Thus the gene flow will increase between the birds of two different habitats as the population of two habitats can mate and produce progeny.  

3 0
3 years ago
Read 2 more answers
Negative feedback
zhuklara [117]

Answer:

b. Works within an upper and lower range

c. " Is regulatory. "

d. Is very common in biological systems

Explanation:

Negative feedback is the regulatory mechanism that maintains homeostasis by counteracting the deviation. Any change serves as a stimulus and a response is produced to reverse the change. Negative feedback is a very common regulatory mechanism to maintain internal body conditions within a narrow range.

For example, the body temperature in adults is maintained within the narrow range of around 36 -37 degrees Celsius. An increase or decrease in the body temperature from the set point is counteracted to restore the set point. An increase in body temperature is reversed by the vasodilation of blood capillaries of skin layers to lose the heat to the surroundings. On the other hand, reduced body temperature below the set point is restored by constriction of capillaries of skin layers.

7 0
3 years ago
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