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Brut [27]
3 years ago
9

Natural selection has not eliminated many harmful conditions and nonadaptive characteristics that appear during old age. This is

because:
Biology
1 answer:
SashulF [63]3 years ago
5 0

Answer:

The theory of aging evolution

Explanation:

The theory of aging evolution seeks to investigate the reasons why living beings begin a degeneration process at a certain age, among the various theories proposed is that of <em>Peter Brian Medawar</em> proposed in 1952, who claimed that natural selection avoided these mutations malignant <em>during the reproductive stage</em> to avoid the reduction of the population, however once this stage concluded the selection allowed them to manifest themselves.

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Give an example of a decomposer and explain what would happen if a decomposer were absent from the forest ecosystem provide evid
Luden [163]

Answer:

Explanation:

Fertilizer

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3 years ago
Some students believe that if they drink a glass of milk before bed and would make them sleep longer what’s the independent vari
miss Akunina [59]

Answer:

Independent variable: Glass of milk

Dependent variable: Time of sleep

Control variable: same type of milk

Explanation:

Independent variable in an experiment refers to the variable that the experimenter manipulates or changes in order to get a response in another variable (dependent). In this case, the independent variable is the GLASS OF MILK taken before bed.

Dependent variable is that variable that is measured in an experiment. It is the variable that responds to the changes made to the independent variable. In this experiment, the dependent variable is the TIME OF SLEEP of the students.

A control variable or constant is the variable that is kept unchanged throughout the course of the experiment in order not to alter the outcome of the experiment. In this experiment, a control variable can be the SAME TYPE OF MILK taken by each student.

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3 years ago
hummingbirds have small, weak feet and rely on their strong wings to move from one place to another. Describe how a disease affe
neonofarm [45]
The muscular system of an organism controls the organism’s muscles. When a hummingbird’s muscular system is affected, the muscles will become weak from a disease and they will potentially die because they will not be able to survive without the strong support of their legs or any other muscle in its body.
6 0
3 years ago
2
yarga [219]

Answer:

B. The mutations were beneficial for each new environment.

Explanation:

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3 years ago
In a food chain, why is it important for an organism to have different sources of food​
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Answer:

They need backups.

Explanation:

If the organism only has one food source they will use up that resource and eventually the organism will deplete due to lack of food.

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