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Murljashka [212]
3 years ago
12

What are the conditions required for natural selection? Check all that apply.

Biology
2 answers:
jolli1 [7]3 years ago
8 0

Answer:

The conditions for natural selection are:

  • overproduction of offspring
  • variation among organisms in a population
  • favorable adaptations selected by nature

Explanation:

  • Natural selection is the continuous process of reproduction and survival that is caused by the contrast and differences due to phenotype.
  • Overproduction of species creates the competition and only the one survived through the natural selection grows to the next generation.
  • Similarly variations in the phenotypic organization of species, their adaptation process etc causes the natural selection.
  • Natural selection is the gateway for the evolution.
kow [346]3 years ago
8 0

Answer:

A: overproduction of offspring

C: variation among organisms in a population

D: favorable adaptations selected by nature

F:favorable adaptations building in population over time

Explanation: Just took the test.

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Evolutionary classification/taxonomy is a branch of biological classification. The objective is to classify organisms and group them based on their shared descent, progenitor-descendant relationship and degree of evolutionary change. Now this classification can be done by comparing DNA sequences of the organisms and seeing how many they have in common

2- The correct answer is A-cladistic analysis.
A cladistic analysis is focused on categorizing the organisms based on their derived characters. And what is that? that means they are getting categorized
according to their evolutionary relationships( from ancestral characters).
So, species are going to be classified according to how recent their common ancestor is. If two species have a more recent ancestor they will end up in the same group
If the common ancestor between them is far, the distance between the respective taxa will be bigger.

3- The correct answers is C.
A derived character is a characteristic that appeared throughout evolution, still remains in a lot of different taxonomic groups and allows us to identify those groups.
From the options given, C is the only correct one because the presence of hair (a derived character)  only exists in mammals( the group). Other animals don't share that trait.


4-The answer is A.
In each node, a taxon was only one but then was divided into two taxa. Therefore, each node will represent a common ancestor of the taxon.
The correct option is A because the last node or terminal node is the hypothetical last common ancestor of the taxon on the cladogram.

5-  The correct answer is A.-DNA can solve evolutionary puzzles.
Dna has been helping understand how an organism is similar to more than one species, and that way, we can classify the organism the best way possible.
This can be achieved by comparing the nucleotides of the organism we want to classify, with other species. There are databases that have all the DNA sequenced so, what's left to do is count the common nucleotides and their positions.
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10.Recognition species concept
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