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

Which of the following is an example of an abiotic limiting factor on population size?

• water availability

• Availability of food

• disease

• predation

Tags

NGSS.MS-LS2-1

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-LS2-4

What type of interaction occurs when bees live in a hive?

• cooperation
• competition
• churros
• chimichangas

A part of the environment that prevents a population from growing to large is a/n______________

• abiotic factor
• biotic factor
• limiting factor

Tags

NGSS.MS-LS2-4

Individuals _____________ when they work together to obtain resources.

• cooperate
• compete

One factor that drives population changes is

• the availability of resources.
• predation.
• both a and b.
• none of the above.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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

A population is 

• a group of communities that exist in different places
• a group of organisms of one species that lives in the same area at the same time
• a group of people that populate one place at the same time on different planets

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.