Population Dynamics

What causes competition to occur in an environment?

• Good conditions make resources plentiful.

• Organisms struggle for a limited resource.

• Members of a population have different roles.

• A population falls below the environment’s carrying capacity.

Tags

NGSS.MS-LS2-1

Without other changes to a population, which of the following will cause a population to increase in size?

• The birth rate equals the death rate.

• The birth rate is less than the death rate.

• The birth rate is greater than the death rate.

• The birth rate and the death rate both equal 0.

Tags

NGSS.HS-LS2-6

Carrying Capacity is

• the capacity of what one person can carry per day 
• how many animals you have in your daily bag limit at the end of the year
• wildebeest at a watering hole with zebras
• the maximum number of individuals that the environment can support

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What are two ways in which the environment can influence population size?

• competition and natural disasters
• biomes and ecosystems

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Is a fungal infection in frogs considered biotic or abiotic?

• biotic
• abiotic

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

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

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which of the following will increase the size of a population?

• emigration and births
• immigration and deaths
• immigration and births
• emigration and deaths

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

What factor describes when populations decrease because animals are moving out of a population?

• Emigration
• Limiting Factors
• Immigration
• Exponential Growth

A population is...

• A group of one species in one area
• Multiple species that live in one area
• All of the living and nonliving things in an area
• None of these

Individuals joining a population is an example of ______________

• emigration
• immigration