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SVETLANKA909090 [29]
4 years ago
5

Charles Darwin spent over 20 years developing his theory of natural selection. True or false?

Biology
1 answer:
Oksanka [162]4 years ago
7 0
This is true, Darwin spent over 20 years developing his theory of natural selection
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1. What is biotechnology?
rjkz [21]

Answer:

1: the exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc.

2: Genetic engineering, the artificial manipulation, modification, and recombination of DNA or other nucleic acid molecules in order to modify an organism or population of organisms.

3: Genetically Modified Organisms

4: Selective breeding is a form of genetic modification which doesn't involve the addition of any foreign genetic material (DNA) into the organism. Rather, it is the conscious selection for desirable traits.

5:Selective breeding (also called artificial selection) is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits (characteristics) by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

6:The use of genetic engineering and the creation of genetically modified crops has resulted in many benefits for the agricultural world. ... By modifying crops so that they are resistant to diseases and insects, less chemical pesticides have to be used to combat diseases and pests.

7:It is known that the main concerns about adverse effects of GM foods on health are the transfer of antibiotic resistance, toxicity and allergenicity. There are two issues from an allergic standpoint.

7 0
3 years ago
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The energy needs of a human population are not affected by the
gogolik [260]
By the heat of the enegry
5 0
3 years ago
The idea that a species that is best suited for a particular environment will survive and reproduce is called: a. evolution c. a
belka [17]

Answer:

natural selection :)

Explanation:

8 0
3 years ago
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In a certain population, 99% of the people have Rh-positive blood. Suppose that two people from this population marry. What is t
Ivahew [28]

Answer:

The probability that both will be Rh-negative out of 99% Rh-positive is 0.01 x 0.01 = 0.0001.

Explanation:

The population contain 99℅ of Rh-positive. This represent almost all of the people.

However, there is still 1℅ chance of having an individual of Rh-negative.

Both of them will have the probability of 1℅ of having Rh-negative(0.01).

Therefore, Pr(Rh-negative AND Rh-negative) = 0.01 x 0.01. The result is approximately equals zero.

The both parents having Rh-negative, will have a dominant Rh-negative blood passed to their children, only recessive Rh-positive of 25℅ chance.

Since the chance of Rh-negative blood passed to their children is 75℅, it is inevitable that their children will be Rh-negative

3 0
3 years ago
Why no two siblings have the exactly the same combination of random fertilization
Karo-lina-s [1.5K]

Answer:

brothers and sisters don't look exactly alike because everyone (including parents) actually has two copies of most of their genes. And these copies can be different. Parents pass one of their two copies of each of their genes to their kids.

8 0
3 years ago
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