Measuring Populations

Question 1

Distribution of species

Answer 1

the geographical area in which species is found

Question 2

Types of distribution

Answer 2

regular
random
cluster

Question 3

Regular distribution

Answer 3

occurs due to interactions with other individuals

Question 4

An organism in regular distribution

Answer 4

cresote bushes

Question 5

Random distribution

Answer 5

no pattern of interaction

rare in nature

Question 6

Organism in random distribution

Answer 6

stingless bee

Question 7

Cluster distribution

Answer 7

interaction with others/environment

most common type

Question 8

Organisms in cluster distribution

Answer 8

herds of large mammals
social insects
migrating waterfowl
schools of fish

Question 9

Types of population pyramids

Answer 9

expansive
constructive
stationary

Question 10

Expansive population pyramid

Answer 10

high fertility rates
lower than average life expectancy
3rd world countries and Latin America

Question 11

Constructive population pyramid

Answer 11

longer percentages of young people

United States

Question 12

Stationary population pyramid

Answer 12

equal percentages of all age groups

European countries

Question 13

Natural selection

Answer 13

mechanism of evolution

Question 14

Types of natural selection

Answer 14

stabilizing selection
disruptive selection
directional selection

Question 15

What happens to genetic diversity in stabilizing selection

Answer 15

genetic diversity decreases

Question 16

Examples of organisms with stabilizing selection

Answer 16

medium-sized spiders

medium-sized mice

Question 17

What traits in a population are selected for in stabilizing selection

Answer 17

normal traits

Question 18

In stabilizing selection gene frequencies are kept……

Answer 18

constant

Question 19

In disruptive selection either…… in a population is selected for

Answer 19

extreme

Question 20

Disruptive selection eliminates ……..

Answer 20

intermediate traits

Question 21

What changes cause disruptive selection

Answer 21

disease
new predator
climate change

Question 22

What is a population distribution of age and gender graph

Answer 22

a back-to-back graph

Question 23

What does population distribution of age and gender show

Answer 23

number of males and females and age group pf each gender

Question 24

Directional selection

Answer 24

extreme variation of a trait within a population

Question 25

Examples of an organism that had directional selection

Answer 25

peppered moth

Question 26

Example of an organism that had disruptive selection

Answer 26

limpets

Question 27

The peppered moth experienced directional selection due to the ………. which caused……..

Answer 27

Industrial Revolution; industrial melanism

Question 28

Species can be distributed based on

Answer 28

native range
seasonal range
breeding range