Definitions
Population
Doubling Time
Food
Earth
100
Define the term: Birth Rate
The number of live births per year measured per 1000 people
100
What is a population?
A population is a group of individuals of the same species, living in the same area and or inter-breeding and sharing genetic information.
100
What is doubling time?
The number of years it takes for a country to double in size, assuming constant rate of natural increase.
100
What is a Food Chain?
A chain representing the flow of energy and nutrients among the different organisms in an ecosystem.
100
What is an ecosystem?
A natural unit of biotic(living) and abiotic (non-living) components, through which energy flows.
200
Define the term: Growth Rate
The rate at which a country takes to grow
200
This is what type of population pyramid? Explain your answer.
The pyramid is a constrictive pyramid. This is because it is showing a larger number in the older population, but a low number in the younger population.
200
How is doubling time calculated?
Doubling Time = 70 / annual growth rate
200
What is a Food Web?
A food web is a complex network of interconnected food chains that represents the direction of the flow of energy and nutrients among various organisms in an ecosystem.
200
Glaciers, Ice caps, rivers, oceans, clouds. Are all examples of what sphere
What is hydrosphere?
300
What is a Stationary Pyramid?
A stationary pyramid is a pyramid where there is little to no growth, these are usually the characteristics of a developed nation
300
Affects of death rate:
A: War
B: Disease
C: Health/ Public health care
D: All the above
What is D?
300
a population with a 2% annual growth would have a doubling time of 35 years.
70/2 = 35
300
This is an example of?
What is a food chain?
300
A specialised and large ecosystem or major life zone, with it's own climate, vegetation, soil conditions, biological community that has evolved or adapted to live there. This is called?
What is a Biome?
400
What is a stable pyramid?
A stable pyramid is the same as a stationary pyramid. It is a pyramid where there is little to no growth, these are usually the characteristics of a developed nation.
400
Which of the following are affects on birth rate?
A: Genocide
B: Age Structure
C: Religion and Culture
D:Diseases
What is B and C?
400
The annual growth rate is 1.13%
Calculate doubling time
70/1.13 = 61.9 years
400
This is an example of what?
what is A food web?
400
Define the term: Ecotone
The border/connection between two major ecosystems.
500
Define the terms: Abiotic and Biotic
Abiotic - Non living components of the environment, such as rock types and sunlight
|
Biotic - Living components of the environment, such as plants.
500
What is demographics
Is the study of population, typically done by a group of demographers hired by government, to determine a countries actual size and make informed predictions for future population changes.
500
The annual growth rate is 1.1
calculate the doubling time
70/1.1= 63.6
500
What is the difference between a Food Web and Food Chain?
A food web represents a complex interconnection of multiple food chains within an ecosystem. Where as, a food chain represents a single direction of energy flow.
500
Explain the lithosphere?
It is the upper layer of the earth, it includes the oceanic and continental crusts.