In the selecting agent is the environment, whereas in the...

In ___ the selecting agent is the environment, whereas in ___ the selecting agent is humans. (a) natural selection; convergent evolution (b) mutation; artificial selection (c) homoplasy; homology (d) artificial selection; natural selection (e) natural selection; artificial selection

Key Concepts

Artificial Selection

Artificial selection is the intentional breeding for certain traits by humans, rather than by natural environmental pressures. In this process, humans act as the selecting agents by choosing which individuals are allowed to reproduce, guiding the evolution of species based on desired characteristics, such as in domesticated animals or cultivated plants.

Natural Selection

Natural selection is the process by which traits that improve an organism’s ability to survive and reproduce are favored and become more common in a population over successive generations. In this process, the environment acts as the selecting agent, where the survival and reproduction of organisms are influenced by environmental pressures such as competition, predation, and resource availability.

Transcript

00:01 So i have put the options given in the questions here because there are overlaps between the options in terms of what terms they give you.

00:12 So let's go through the mall and really talk about what forces are driving these terms.

00:21 Or if there are any forces in general, right, are any of these selecting agents? we guess we'll find out.

00:28 So the first option is natural selection.

00:34 Natural selection is the selecting agent would be the environment, right? so natural selection would really be talking about survival.

00:46 It's commonly referred to as survival of the fittest.

00:48 You know, there's a difference in survival and reproductive success is really key there due to differences and traits that the organisms have fetotypes or genotypes in that sense.

01:02 So natural selection is driven by the environment.

01:05 So we can circle that as green because we know that that is definitely the answer to the first half of the question in which the selecting agent is the environment.

01:15 That would be natural selection.

01:18 The second option that we have is convergent evolution.

01:23 So convergent evolution would be if two different organisms or species evolve or develop different traits or the same or similar features, but during different times, they evolve separately in an unrelated manner.

01:43 So this isn't necessarily a selecting agent, more so a feature of evolution.

01:49 So this is not going to be the selecting agent or a case where the selecting agent is human beings or homo sapiens.

01:58 Mutation.

02:00 Mutations is a genetics term.

02:04 It's an alteration in your dna sequence in the nucleotide sequence of an organism's genome.

02:11 And so it doesn't necessarily, it's not going to be a driving force from humans, right? or the selecting agent is not going to be humans.

02:18 It's going to be a process that occurs randomly...

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