Changing Population

changing population

by hanan khalil

Multiple Choice

The total number of organisms in a population.

• Population Size
• 632,000
• Immigration
• Community

Multiple Choice

The number of organisms in a population which die each year 

• Death Rate
• Birth Rate
• Immigration
• Emigration

Multiple Choice

When organisms move into and join a new population

• Immigration
• Birth Rate
• Death Rate
• Emigration

Multiple Choice

When organisms leave a population and move away

• Emigration
• Immigration
• Birth Rate
• Death Rate

Multiple Choice

Birth Rate 20, Death Rate 50
How will the population change

• Increase
• Decrease
• Stay the same

Multiple Choice

2 factors which increase population size

• Birth Rate, Immigration
• Death Rate, Immigration
• Birth Rate, Emigration
• Death Rate, Emigration

Multiple Choice

2 factors which decrease population size

• Birth Rate, Immigration
• Death Rate, Immigration
• Birth Rate, Emigration
• Death Rate, Emigration

Multiple Choice

The amount of organisms born into a population

• Birth Rate
• Death Rate
• Immigration
• Emigration

Multiple Choice

Immigration >Emigration
Population will...

• Increase
• Decrease
• Stay the same

Multiple Choice

A substance needed by an organism for survival

• Competition
• Carrying Capacity
• Cheetos
• Resource

Multiple Choice

Biodiversity, aka biological diversity, usually refers to

• the same species in a general location

• the number of different species in a given area

• the number of animal species in a given area

• the number of plant species in a given area

Multiple Choice

A population is

• a group of similar species in different areas

• a group of the same species in the same geographic area.

• a group of several species in the same geographic area

• a group of several species along with their abiotic factors in a small area.

Multiple Choice

_{If the amount of food or resources available increases, the carrying capacity for an animal.....}

• Stays the same

• Increases

• Decreases

• Fluctuates

Multiple Choice

This is the largest number of individuals of a population that the environment can support...

• carrying capacity

• population crash

• lag phase

• mutualism

Multiple Choice

When a population grows past the ecosystem's carrying capacity, what happens to the population?

• Continues to grow

• The population starts to die off to return to carrying capcity

• The population will go extinct due to lack of resources

• The population grows then finds a new carrying capacity

Multiple Choice

If there is more food than usual in an ecosystem, then the population will mostly likely...

• stay the same
• decrease
• increase
• reach carrying capacity

Multiple Choice

According to the graph, what is causing the deer population to decrease

• They got sick

• The wolf population is decreasing

• The wolf population increased

• They ran out of food

Multiple Choice

Predator population lags behind prey population because......

• Increase in predators leads to decrease in prey

• Increase in predators leads to increase in prey

• Increase in predators leads to decrease in producers

• Increase in producers leads to increase in prey

Multiple Choice

Something that regulates the size of a population is called...

• a limiting measure

• a limiting factor

• carrying capacity

• biodiversity

Multiple Choice

What happens if a population grows past its carrying capacity?

• The population keeps growing

• The population starts to die off

• The entire species will go extinct

• The carrying capacity just increases

Multiple Choice

What are factors that affect carrying capacity?

• Biotic only

• Biotic and abiotic

• Depends on the ecosystem

• Abiotic only

Multiple Choice

This may cause a population to increase

• increase of food supply

• removal of predators

• removal of disease

• all of these

Multiple Choice

If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?

• The bird population would stay the same
• The bird population would infinitely increase
• The bird population would decrease