symbiotic relationship in which both organisms benefit

A living relationship between two species in which one organism is harmed is called...

The nonliving aspects of an ecosystem.

The living portions of the ecosystem.

Sharks consume smaller fish they catch in the ocean. This is an example of what type of relationship?

On a safari at night, a lion hunts and feeds on an antelope. In this relationship, the lion is the ____________________ and the antelope is the _________________.

Round Goby fish were introduced to Lake Erie in the 1990s, quickly replacing natural fish in their native habitats and killing off many natural populations. This is an example of...

Which of the following is TRUE about invasive species?

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

What type of symbiosis? Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower.

In some Pacific Islands, monitor lizards were introduced to try and control rat populations. This is an example of...

A relationship in which two species live closely together.

What term identifies the role an animal fills including how it lives, what abiotic factors it needs, how it reproduces, what it eats, and how it obtains food in an ecosystem?

Which of the following is the most simple level of ecological organization?

Humus is part of the soil within an ecosystem. Worms often act as decomposers within that ecosystem. Decomposition is part of the worm's ___ in the ecosystem.