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vitfil [10]
3 years ago
8

Sexual reproduction leads to offspring that are all genetically different from one another and from either parent. what are the

three aspects of sexual reproduction that lead to this variation?
Biology
1 answer:
zaharov [31]3 years ago
6 0
<span>crossing over during the production of gametes; shuffling and reassortment of homologues during meiosis; and combination of alleles from two parents at fertilization

https://quizlet.com/131060983/biology-practice-test-exam-3-ch-5-6-flash-cards/
I found the answer on here. Hope this URL helps you in the future!</span>
You might be interested in
Which of the following clades is most likely to survive a series of catastrophic events over time? (1 point)
marishachu [46]
The correct options are as follows:
1. D.
<span>A clade refers to a group of organisms that are made up of evolutionary descendants that originated from a common ancestor. A clade that will survive a series of catastrophic events must be one that is made up of distantly related and diverse species. This is because, those species will have different type of adaptability capacity and will be able to adapt in different ways to the catastrophic events. Due to the differences in their ability to adapt, some of the specie will survive the catastrophic events even if others are wipe out.

2. B.
The mass extinction of one specie usually creates space for another new specie to survive. The new specie that survive the old one may possess the ability to adapt to the event that wipe out the former set of living organisms and thus, the new specie will be able to occupy and reproduce in their new space. Mass extinction is said to occur when the whole population of living organism living in an ecosystem are wipe out as a result of unfavorable conditions.

3. B.
Convergent evolution refers to the independent evolution of similar features in species that arise from different lineages. The species involved usually evolve these traits as a result of having to adapt to similar environments. Convergent evolution usually result in evolution of analogous structures, that is, structures that have similar forms or functions but which are not present in the last common ancestors of the species.

4. C.
 In evolution, gradualism refers to theory that states that evolution occurs slowly and gradually, thus, large changes in evolution are actually product of small changes that occur over a long period of time. The theory of gradualism was originally proposed by James Hutton in 1795.

 5. C.
Mass extinction refers to the wiping out of a a large number of species within a very short time. Mass extinction can occur as a result of severe unfavorable conditions that all the species in an ecosystem can not adapt to. An instance of this is a drastic decrease in global temperature after several massive volcanic eruptions.</span>
8 0
3 years ago
The principal reason for declining natural increase rates in less developed countries today is
Nastasia [14]

Answer:

Declining crude birth rates.

Explanation:

Birth rate may be defined as the number of births takes place per year per thousand of the population. The birth rate and death rate may change the population dynamics.

The developing countries shows the expanding population graph as they have more number of people of the reproductive age. The advancement in the medical field results in the decline birth rate that causes the decline of the nature resources.

Thus, the answer is declining crude birth rates.

7 0
3 years ago
Guysss I need help !
yanalaym [24]

Answer:

im sorry but what is that

Explanation:

7 0
3 years ago
The attatched image has the questions, Zoom in to read if necessary.
Vilka [71]

Answer: ALSO IF YOU DONT HAVE A ACTIVITY SLIDE ( It shows what your doing or makes you do a activity or it can make you do research)   FOR THIS YOU MIGHT NOT UNDERSTAND THE ANSWER!

Explanation:

Look at the screenshot and hope this helps! Zoom in the screenshot if needed! ^^

7 0
2 years ago
Plzzz help meee ! identify science vs. pseudoscience
enot [183]
Science follows the evidence where it leads, and pseudoscience starts with the conclusion, and works backwards to confirm it
8 0
2 years ago
Read 2 more answers
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