Human Population

Question 1

Calculate human Population growth rate

Answer 1

Gr= { [(b-d) + (i-e)] / Population size } ×100 over a year

Question 2

Define environmental carrying capacity

Answer 2

The maximum population the environment can support for an indefinite time

Question 3

What are 3 stages of natural population growth

Answer 3

Lag phase, exponential phase, stationary phase

Question 4

Name 2 reasons I to hope start global Human population exponential growth

Answer 4

1) industrial revolution

2) medical advances is

Question 5

Name factors that prevent constant exponential growth of populations In natural environment

Answer 5

Disease predators limitation of food and other resources change in food supply

Question 6

Define M DCS

Answer 6

More developed countries example United States

Question 7

Define LDC

Answer 7

Less developed countries example Uganda

Question 8

Name solution which will prevent rapid population growth and LDC S

Answer 8

Contraceptives, in child labor, educates, make it illegal to have early marriages for children

Question 9

Name 4 stages of demographic transition model. What are the birth rates death rates and total population.

Answer 9

Graph

Question 10

Define ecological footprint of human population on environments

Answer 10

The sum of all cropland, grazing land, forest and fishing grounds required to produce the food, fiber and 10 timber in could it consumes, to absorb the waste emitted when it uses energy and it to provide a space for its infrastructure

Question 11

Define ecological communities

Answer 11

A group of interacting species living in the same place

Question 12

Define predators lass pray relation in ecoystem give example

Answer 12

Any interaction in which one organism consumes another example lion hunts hyenas

Question 13

Define Keystone species

Answer 13

SPC that plays a critical role in maintaining the structure of an ecological community and whose impact on the community is greater than would be expected

Question 14

Define ecological section name to major differences between primary and secondary

Answer 14

Processing was a biological community develops over time. Primary starts with rocks secondary started soil. Primaries a longer process as for secondary shorter

Question 15

Define symbiosis. Name 3 types

Answer 15

Relationship between 2 species. Mutualism, Parisitism, commensalism