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Elza [17]
3 years ago
5

How can we learn about life on early Earth?

Biology
1 answer:
Lapatulllka [165]3 years ago
6 0

Easy. HISTORY or GEOGRAPHY books of specific areas you want to know more about.

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Natural selection is most likely to have different effects on organisms with which pair of alleles
____ [38]
The answer would be the one with the least dominant trait ( but not the one who have none)

for Example : Aa x aa

This pair of alleles will most likely to have diffrent effects on Organism ,

Aa : aa = 50 : 50
3 0
3 years ago
It is necessary for the immune system to clearly distinguish foreign cells and proteins from those made by the body.
Naddika [18.5K]

Answer: It is necessary for the immune system to clearly distinguish foreign cells and proteins from those made by the body so that the immune system will be able to fight foreign cells and proteins and eliminate them from the body.

Explanation: The ability of the immune system to clearly distinguish foreign cells and proteins from those made by the body helps the body to identify pathogens that invade the body and trigger appropriate immune response to eliminate the foreign cells and proteins.

When the immune system of the body fails to distinguish foreign cells and proteins from those made by the body, the body launches an attack against its cells, that is the immune system triggers an autoimmune response in which attacks are launched against the cells of the body and destroy them. This condition in which the immune system recognizes the cells of the body as non-self and launches an attack against them is known as autoimmunity. Autoimmunity is the major cause of most degenerative diseases such as type I diabetes mellitus.

5 0
3 years ago
Organisms use various strategies and adaptations to regulate body temperature and metabolism. Discuss one way in which an organi
myrzilka [38]

Answer:

Organisms use various strategies and adaptations to regulate body temperature and metabolism. The organisms control the exchange of heat by various ways which include physiological, behavioural means  and by insulation.

The factors which play most important role in the heat exchange  regulation between environment and organism are as follows:

  • effective temperature difference  between organism and environment
  • Exposed surface area
  • Evaporatory and circulatory changes

<u>Insulation</u> :Another most common method used for heat exchange.Animals who have furs,feathers and fat layers which play significant role in insulation. They are very much important because they reduce heat exchange amount between environment and organism. The most common example is of Cats. They used to curl up their bodies when they want to sleep in cold environment, they tuck their bodies in their paws and legs, and they wasp their tails around their bodies. When organism uses the food and oxygen the body temperature begins to increase, this method is known as metabolic heat production.

8 0
3 years ago
If a child only eats fries, What macromolecule might be deficient and how will it affect her?
Elodia [21]

Answer:

carbohydrates

Explanation:

the child will have low energy

3 0
3 years ago
Simplify Each Expression (Combine Like Terms): -8Q + 6 + 3Q - 1
Llana [10]

Answer:

-5q-5

Explanation:

-8Q+6+3Q-1

-8Q+5+3q

I think thats correct

5 0
3 years ago
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