An adaptation is a trait of an organism that increases ...

Question

An adaptation is a trait of an organism that increases                   .
a. its fitness;
b. its ability to survive and replicate;
c. in frequency in a population over many generations;
d. A and B are correct;
e. A, B, and C are correct

Accepted Answer

Hello everyone. Let's look at our next problem. It says. Which of the following is a treat that is maintained and evolved by natural selection to improve an organism's fitness. So remembering that an organism's fitness first to its um reproductive success so its ability to survive to reproduce and pass on its genes. So let's look through our choices. Choice A. Says by login E. We'll file a genie. Is the study of the relatedness of species and groups of species and their evolutionary history. So this is not a trait maintained by evolution. This is a study of something. So definitely not our correct answer. So let make choice A. Choice B. Says embryology. Embryology is we might guess by that name. There is the study of embryo development. So again obviously not the answer we're looking for here. So cross out choice B. Now on the choice see and choice C. Is adaptation. Well yes an adaptation is a trait that is maintained and evolved by natural selection because an adaptation allows an organism to have a advantage um That makes it more likely to survive to be able to reproduce and therefore natural selection maintains and then um drives evolution um by means of passing on that adaptation. So Choice C adaptation is correct. And for thoroughness sake we'll move on to choice D thermal regulation. This is the way that mammals self regulate their own body temperature regardless of the external environment. So again obviously not the answer we're looking for. So which is a trait maintained and evolved by natural selection to improve an organism's fitness. Choice C adaptation join us in the next video.

Watch next