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Irina18 [472]
3 years ago
7

What were the three major observations that charles darwin contributed to evolution?

Biology
1 answer:
Volgvan3 years ago
6 0

Answer:

The 3 major observations were:

1. More individuals are produced each generation that can survive.

2. Phenotypic variation exists among individuals and the variation is heritable (through parents' genes).

3. Those individuals with heritable traits better suited to the environment will survive.

Explanation:

Charles Darwin was a British naturalist who proposed the theory of known to everyone as  'The Theory of Evolution' through natural selection.

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How do small particles cross a cell membrane?
lora16 [44]
Active transport requires that the cell move engegy that it has obtained the food to move the molecule threw the cell membrane.The passive transport doesn't required as much energy for the molecule to move....
5 0
3 years ago
Edema occurs when____________
Maksim231197 [3]

Answer:

A) areolar tissue soaks up excess fluid in an inflamed area

Explanation:

Areolar tissue is found around blood vessels, muscles, nerve bundles. Edema which is also a part of inflammation occurs when blood capillaries of blood vessels leak the fluid and is soaked by areolar tissue. So excess fluid in these tissue cause swelling of that part.

Edema is one type of defense reaction to the cell injury. With fluid white blood cells and defense proteins move in the area and counter the infectious agent of injury and helps in eliminating the injurious factor. So the correct answer is A.

4 0
3 years ago
We know a lot more about animals and plants than Darwin did, and still, not a single case is known to me of a complex organ that
grigory [225]

The given statement is True.

<u>Explanation:</u>

The Charles Darwin developed the theory called Darwinism theory of evolution. The theory states that all the species of the organisms arises and developed through the small, inherited variations in the organisms that increase the individual ability to complete the survive and reproduce.

The individual species are not having identical traits that  are passed from the generation to generation. The offspring are born that can survive, only the survive of the completion for resources will reproduce; he describes how the species can change in shape and character through the selective breeding.

4 0
3 years ago
Why are emotional memories retained better than memories of humdrum experiences? Select an answer and submit. For keyboard navig
olya-2409 [2.1K]

Answer:

The correct answer is : option A. emotional arousal in the amygdala activates memory consolidation in the hippocampus.

Explanation:

Hippocampus is the part of the brain known for the consolidation of the memories to short time to long term memories based on their emotional relevance.

Amygdala is the part of the brain that is responsible for emotional arousal or forming emotion which is later activates the hippocampus to consolidate this memory. Memory with the emotional aspects retained for long term than boring or humdrum experiences due to the reason mentioned above.

5 0
3 years ago
What abiotic things control population size and what are these called?
Andrej [43]
Some abiotic factors that can limit a population are space and weather these are called limiting factors (and how much water is provided)
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3 years ago
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