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Biology 18 Online
OpenStudy (anonymous):

1. Which phrase best summarizes natural selection? A.Survival of the fittest B. Those that are not adapted will survive C. Never happens in nature D. Living things can pick their traits 2. Which of the following provides evidence of evolution? A. Fossil record B. Chemical and anatomical similarities C. Geographic distribution D. All of the above 3. How does embryology demonstrate a common ancestor? A.Embryos are vastly different B. Embryos have similar features as they develop C. Embryos of all species are identical

OpenStudy (anonymous):

@TheSmartOne

OpenStudy (abhisar):

lets talk about it one by one. For the Q1, what do you think should be the correct answer?

OpenStudy (anonymous):

a

OpenStudy (abhisar):

Yes, that's correct. Darwin said that those who are better adapted or in other sense are fittest will survive and pass on their legacy to the next gen thus "Survival of the fittest"

OpenStudy (abhisar):

Now, what about Q.2?

OpenStudy (anonymous):

d

OpenStudy (anonymous):

@Abhisar

OpenStudy (abhisar):

You are again correct !

OpenStudy (anonymous):

yaya :)

OpenStudy (abhisar):

Next one?

OpenStudy (anonymous):

b

OpenStudy (abhisar):

Wow! again correct. It is said that ontogeny repeats phylogeny.

OpenStudy (abhisar):

Haeckel formulated his theory as "Ontogeny recapitulates phylogeny". Ontogeny is the growth (size change) and development (shape change) of an individual organism; phylogeny is the evolutionary history of a species.

OpenStudy (anonymous):

yes! can u help me make sure i got the rest of my question right

OpenStudy (abhisar):

Yes, ask them in a new post.

OpenStudy (anonymous):

ok

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