Question

Mutations in which cells are inherited?

A)Somatic cells

B)Reproductive cells?

Which type of selection do drives antibiotic resistance in hospitals?

A)Directional

B)Stabilizing

C)Disruptive

What does fitness measure (in biology)?

A.Physical strength

B.Number of offspring that survive

C.Life span

D.Body fat index

Would you expect humans to have matched the criteria for altruism in the distant past?

A) yes

B)no

Would you expect humans to have matched the criteria for altruism out on the street today?

A) yes

B)no

Stuck on these questions and need help answering them.

Answer 1

Ans) B, Reproductive cell because mutations in the reproductive cells can be passed on to the next generation while mutations in the somatic cell remain in one generation only.

Ans) A, directional selection, Aaj only those bacteria that antibiotic resistance are selected so the bacteria with antibiotic resistence have a higher chance of surviving and dividing to create offspring and so this selection becomes directional.

Ans) No

No, humans would not happen expected to match the idea of altruism in the distant past and this was because there was a lot of competition for survival and therefore the selfless nature could not have been evolved by then .Humans survive by hunting buy competition for meat and competition for shelter.

Ans) A,yes now in this age humans have been shown to be empathetic to one another and selfless to each other at a level.This is because of the social development seen in the human species and so altruism can be found to some extent in the streets today.