Living Things Interact Review Unit B Chapter 2 Living Things Interact Review

A single organism living in an environment is? Individual

All the populations of organisms living together in an environment are? Communities

Some animals eat off of more than one consumer level. True or False Some animals eat off of more than one consumer level. True

Living things that must eat to gain energy are? Consumers

What shows the relationship between many different food chains in one ecosystem? Food Web

Human activity can cause a decline in populations of organisms. True or False Human activity can cause a decline in populations of organisms. True

What shows how consumers in an ecosystem are connected to each other based on what they eat? Food Chain

Consumers that break down decaying tissue. Decomposer

True or False Instinctive behaviors include building shelter, finding mates, and hunting. True

A non-native organism Exotic

True or False Hurricanes and floods are examples of natural causes for population decline. True

A community and its physical environment would be known as an ___________. ecosystem

True or False Only 10% of the energy from one level of the energy pyramid will be passed on to the next level. True

A long term relationship between different kinds of organisms. Symbiosis

Place in an ecosystem where each population lives. Habitat

BOTH organisms benefit in mutualism! True or False In a relationship of mutualism, two organisms work together while only one benefits. False BOTH organisms benefit in mutualism!

Organisms that produce their own food through photosynthesis. Producers

Pesticides are a natural cause for population decline. True or False Pesticides are a natural cause for population decline. False

Individuals of the same kind living in the same environment. Population

True or False It is not possible for animals to eat from the same food source without competing. False