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.

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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.

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

• water availability

• Availability of food

• disease

• predation

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When individuals join a population

• Aliens
• migration
• Immigration
• Emigration

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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

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

• competition and natural disasters
• biomes and ecosystems

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Is a fungal infection in frogs considered biotic or abiotic?

• biotic
• abiotic

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What type of interaction occurs when beech and maple trees are in the same forest? 

• cooperation
• competition
• cohabitance

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

• cooperation
• competition
• churros
• chimichangas

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