The maximum population size that can be supported by the available resources of a region is know as ________ capacity.
carrying capacity
100
In Japan, the death rate is higher than the birth rate.
What is happening to the size of the population.
It will decrease.
100
This 1973 act protects species considered to be endangered or threatened
The endangered species act
100
What is the study of organisms in their natural environment called?
Ecology
100
A species that is so important to an ecosystem that without its presence, an entire ecosystem may be thrown off balance.
What is a keystone species?
200
This word describes individuals leaving a population.
Emmigration
200
Give an example of a Macronutrient
Proteins, carbohydrates, fats
200
The germination, cloning, birth, or hatching of individuals in a population is known as:
a) life span
b) niche
c) natality
c) natality
200
It is estimated that earth’s population will reach _______________________ by the year 2050.
9 Million
200
The extinction of many species in a short period of time is called?
mass extinction
300
Which is of the following is characteristic of r-select organisms
a) Slow Maturation
b) Many small offspring
c) Reproduction occurs later in life
b) Many small offspring
300
Which of the following activities has the largest ecological footprint
a) driving a motorcycle
b) driving a large truck
c) driving a small car
b) driving a large truck
300
This word describes a species that is in imminent danger of going extinct.
Endangered.
300
The model that describes how industrialized nations undergo a large drop in birthrate and death
rates are called
The demographic transition
300
Most of the species known to science today.
A. Are large mammals
B. Live in deserts
C. Live in the richer countries of the world
D. Are insects
What are insects?
400
Which best describes the population dispersion of lions?
a) random
b) Clumping
c) Uniform
b) Clumping
400
Which number is closest to the population of the world
a) 100 million
b) 700 billion
c) 7 billion
c) 7 billion
400
The ___________ extinction rate describes the natural extinctions that have happened throughout earths history.
background extinction rate
400
Why is biological diversity important?
The more diverse an ecosystem is, the more stable it is.
400
What has become the most important source of environmental change on Earth?
Human Activity
500
The mole population on Angel Island is increasing at a rate of 10%. How long will it take for the population to double.
70/10= 7 years
500
Exponential human population growth is affected by all the following factors except:
a) infectious disease
b) increased television time
c) better and more available food
b) increased television time
500
The largest threat to biodiversity today is:
a) Hunting
b) habitat degradation and fragmentation
c) Natural causes
b) habitat degradation and fragmentation
500
Which type of country tends to have the highest population growth rates?
Under-developed, poor countries
500
What is a reason for the slow growth of the human population before 1830?