The nonliving parts of an ecosystem are called

to produce their own food, algae and plants use abiotic factors of sunlight, carbon dioxide and _________.

a population is all the members of one species living in a particular

a group of antelope leaving the herd in search of a better grassland is an example of....

if you count 20 beetles in a garden measuring 5 square meters, the population density of beetles is

on organism's particular role in its habitat, or when and how it survives is called its...

which of the following is an example of a PREDATOR adaptation?

A hawk is building its nest on the arm of a saguaro cactus, this is an example of...

The part of an ecosystem where an organism lives and feeds is called its...

Nutrients in the soil from decaying plant and animal remains is a ____________ factor in a habitat

The main way a population can grow is through the __________ of offspring.

all the biotic and abiotic factors in an ecosystem make up the______________

a lack of places to build a nest is an example of ___________ as a limiting factor

An insect looks like a leaf, so it blends in with its surroundings. This is an example of commensalism

In mutualism both species benefit

population size generally increases if the birth rate is bigger than the death rate

bees and flowers are biotic factors in an ecosystem

Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger.

A barn owl kills and eats a field mouse.

Barnacles create a home by attaching themselves to the skin of a whale. The barnacle is a filter feeder and obtains food as it rides on the whale. The whale is not affected.

Fleas obtain nutrients by feeding on the blood of a dog.

A tree uses energy from the sun to make sugar.

A monkey picks fleas and ticks off of a dog and eats them as a tasty snack. The dog and monkey are also friends.