Quiz 7

Question 0

Population Growth rate:

Answer 0

Rate at which the number of individuals in a population increases per unit of time.

Question 1

Population Growth: What is population :

Answer 1

Population is dynamic - always changing over time

Question 2

Population size of any organisms

Answer 2

impacts our daily lives

Question 3

Population growth refers to:

Answer 3

how the number of individuals in a population increases or decreases with time:

Question 4

Birth Rate

Answer 4

The growth is controlled by the rate at which new individuals are added to the population

Question 5

Death Rate

Answer 5

Rate at which individuals leave the population.

Question 6

Exponential Growth

Answer 6

Based on the size of the growing entity

Question 7

Entity=

Answer 7

Organism within a population

Question 8

The larger the population …

Answer 8

The faster it grows

Question 9

How does population size expands?

Answer 9

By ever increasing increments during successive time intervals; Growth rate is proportional to current population size (n)
The larger the population gets, the more individuals there are to reproduce, the faster it grows.

Question 10

Assumptions:

Answer 10

Continuous reproduction, all organisms are identical, environment is constant -> NOT realistic.

Question 11

Population Growth Rate - Factors:

Answer 11

Often limited, determined by various factors :

1. Density: Number of individuals in specified are of habitat
2. Distribution: - Spatial arrangement or pattern of an individual over their habitat.
3. Proximity to other individuals also can have an overall effect: find mates, predator protection , sharing resources.

Question 12

Intrinsic aspects of a population:

Answer 12

Immigration: Adds individuals
Emigration: Subtracts individuals
Birth: Adds 
Death: subtracts 
so I+B-E-D= population Size!