Topic 10 reproduction textbook

Question 1

population ecology

Answer 1

The study of how and why populations of a organism grow and decline

Question 2

Nt

Answer 2

population size/number of individuals at a specified time

Question 3

Population density

Answer 3

number of individuals per unit area or per unit volume of habitat

Question 4

large body size and population density relationship

Answer 4

species with a larger body size have a lower population density

Question 5

Clumped population (4)

Answer 5

• distribution of essential resources such as shelter, nutrients, energy and Mates
• asexual clones and remain attached to the parent
• social individuals per coopoerated in reading offspring, defense against predators and and feeding.

-lack dispersal mechanisms

Question 6

when can Uniform diversion occur? (2)

Answer 6

can occur when individual repel or avoid one another bc of short supply

can occur because of territorial behaviour (the defence of an area and its resources)

Question 7

Random Dispersion

Answer 7

When environmental conditions do not vary much within a habitat and individuals are neither attracted to nor replied by others of their species

Question 8

age structure

Answer 8

a statistical description of the relative numbers of individuals in each age class

Question 9

generation time is usually short in species that reach sexual maturity at____. Their populations….

Answer 9

a small body size

grow rapidly because of the speedy accumulation of reproducing individuals

Question 10

Demography

Answer 10

study of immigration and emigration the changed a population’s size and density