natural selevction

Question 1

how to answer natural selection type of qn

Answer 1

variation (had variation in X in population)
advantage of adaptation (catch prey/ escape predators)
natural selection (better survival rates, hence producing more offspring inheriting X trait)
evolution (over many generations, population carrying X trait becomes more common)

Question 2

nature of evolution

Answer 2

1) population evolves
2) traits must be present & heritable
3) evolution is not goal directed
4) result of environmental factors that vary

Question 3

artificial selection qn type

Answer 3

1. male & female w desired characteristics are chosen as parents
2. parents bred to produce many offspring
3. offspring without __ trait are killed/ removed
4. offspring with ___ trait are kept
5. a pair of male and female selected, bred to produce the next generation

Question 4

artificial selection is

Answer 4

deliberate and planned selective breeding