adaptation and variation

Question 1

adaptation

Answer 1

process that helps an organism survive and reproduce in a particular environment

Question 2

3 types of adaptation

Answer 2

behavioural, physiological, structural

Question 3

1 adaptation

behavioural

Answer 3

things an organism does to survive

Question 4

1 adaptation

physiological

Answer 4

permits organism to perform special function

Question 5

1 adaptation

structural

Answer 5

physical features of an organism that help them adapt

Question 6

structural adaptation

mimicry

Answer 6

harmless species mimic a harmful species

Question 7

2 adaptation

variations

Answer 7

differences between individuals
* environmental conditions determine the effect on the variation’s ability to survive

Question 8

2 variations

pepper moths

Answer 8

colour variations: black, grayish-white with black dots. the lighter moths camouflaged into the light birch trees, black moths could not. the lighter moths had a greater chance of survival against predators, being able to pass on this variation to their offspring and becoming the greater variation in frequency. the industrial revoltion planted soot onto the light trees, making them dark. the black moths now had the advantage.

Question 9

mutations

Answer 9

changes in dna
* harmful or helpful

Question 10

3 mutations

selective advantage

Answer 10

a genetic mutation that improves an organism’s chance of survival in a changing environment