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A biotic or abiotic resource in the environment that causes population size to decrease is a

• growth factor

• limiting factor

• carrying capacity

• limiting nutrient

If a natural disaster devastates an ecosystem, what will this do to the carrying capacity of the population of a species within that ecosystem?

• Increase it.

• Will not affect it, so it will stay the same.

• Always reduce it down to zero.

• Decrease it.

A community of living and nonliving things in their natural environment makes up a 

• food web
• ecosystem
• food chain
• population

A Adaptation is?

• A Visible or individual difference, can be helpful can be harmful or neutral.

• Helps a organism survive.

• A add of tations

• Study of developing offspring before birth.

Populations consist of

• a single species

• multiple species

• the biotic and abiotic factors of an environment

• a grouping of ecosystems

The non living parts of an ecosystem

• abiotic factors
• biotic factors
• oxygen
• soil

 

Which of the following is NOT an example of the relationship between a parasite and it’s host?

• Tapeworm living in a human stomach.

• A flea attaching itself to a dog and feeding off it’s blood.

• A mosquito biting a person during a camping trip.

• Heartworms are known to infect a dog's heart and block the heart from pumping blood throughout the rest of its body.

Which of the following is NOT an example of an abiotic factor?

• sun

• snow

• temperature

• microorganisms

All of the different populations that live in a specific area.

• ecosystem
• habitat
• ecology
• community

All the members of one type of species in a specific area.

• habitat
• community
• population
• ecosystme