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

What is one way that cooperation helps lions to survive?

• They hunt in a group to increase their likelihood of catching prey.

• They all have a tan color that helps them blend into their environment.

• They eat a variety of prey, including zebras, buffaloes, and wildebeest.

• They live in prides of five to ten adult females and their young, and one or two adult males.

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

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

When individuals join a population

• Aliens
• migration
• Immigration
• Emigration

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

Is a fungal infection in frogs considered biotic or abiotic?

• biotic
• abiotic

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

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

• abiotic factor

• biotic factor

• limiting factor

• cooperation

Individuals _____________ when they work together to obtain resources.

• cooperate
• compete

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

• Emigration
• Limiting Factors
• Immigration
• Exponential Growth