Week 4

Question 1

cline

Answer 1

patterns of change in a characteristic of an organism over a geographic reason.

Question 2

phenotypic plasticity

Answer 2

A single genotype produces different phenotypes in different environments.

Question 3

evolution

Answer 3

change in gene frequencies in a population

Question 4

genotype

Answer 4

Genetic constitution of an organism

Question 5

phenotype

Answer 5

Outward appearance and behavior of an organism (determined by genotype & environment)

Question 6

Adaptation

Answer 6

A genetically determined trait of an organism that confers increased survival and reproduction in their environment.

Question 7

life history strategy

Answer 7

The overall pattern the timing and nature of life history events averaged across all individuals and species.

Question 8

phenotypic plasticity

Answer 8

A genotype may produce different phenotypes under different environmental conditions.

Question 9

allometry

Answer 9

Differential growth of body parts that results in a change in shape or proportion with size.

Question 10

semelparity

Answer 10

single reproduction. Same age every year.

Question 11

iteroparity

Answer 11

repeated reproduction.

Question 12

r-strategy

Answer 12

high reproduction (lots of little offspring) rate when resources are not limiting

Question 13

K-strategy

Answer 13

low reproduction (few large offspring) when competition for resources is great

Question 14

semelparous species

Answer 14

reproduce once in their lifetime.

Question 15

iteroparous species

Answer 15

reproduce multiple times.

Question 16

phenotypic plasticity

Answer 16

A single genotype’s ability to produce different phenotypes under different environmental conditions.

Question 17

allometry

Answer 17

the different growth of body parts that result in a change in shape or proportion with size.

Question 18

annual plants

Answer 18

life cycle = year