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RSB [31]
3 years ago
14

Through the 1973 endangered species act, __________ u.s. species have been listed as endangered or threatened with recovery plan

s approved or implemented for __________ species.
Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0
2,200 species, and recovery plans were approved or implemented for invasive species.
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In humans, the haploid number of chromosomes is 23. independent assortment has the possibility of producing __________ different
Gennadij [26K]
The answer to this question would be: 2^23

When the gene is dividing, the chromosome pair, which was made by 2 single chromosome, will be divided into two single haploid chromosomes. That means there is two kind of possibilities for each chromosome. If there are 23 chromosomes then it will be 2^23 possibilities
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Describe the view if you were to stand in the umbra of a lunar eclipse.
dlinn [17]

During a solar eclipse, when the Moon's shadow falls on the Earth, we stand in the shadow rather than looking at it. Observers standing in the umbra see a total eclipse of the Sun, while observers under the penumbra see a partial eclipse.

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PLEASE HELP ASAP
Amanda [17]

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8 0
3 years ago
The inability of organisms to evolve anything that could be an advantage reflects _____.
sergey [27]

The inability of organisms to evolve anything that could be an advantage reflects "the limit of historical constraints".

<h3>What is the limit of historical constraints of evolution?</h3>

Although evolution is a powerful process that leads to

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to evolution arise from a lack of genetic variation, a

loss of well-adapted genotypes in populations due to

gene flow, trait interactions leading to trade-offs, and/

or the difficulty of evolving simultaneous changes in a

number of traits. This is the limit of historical constraints of evolution.

<h3>What are the factors that can cause an organism to evolve?</h3>

Four main factors lead to evolution:

(1) the potential for a species to diversify;

(2) heritable genetic variation among individuals within a species as a result of mutation and sexual reproduction;

(3) competition for scarce resources; and

(4) the spread of organisms that are better able to endure and procreate in the environment.

To learn  more about evolution visit:

brainly.com/question/12051929

#SPJ4

4 0
1 year ago
Which of the following qualifies as point-source pollution?
Lynna [10]

Answer:

the answer is b

Explanation:

6 0
3 years ago
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