Organisms Relationships Assess It

If left alone, vines can eventually 'choke' a tree from getting the sunlight it needs to survive. What is the best description for this relationship?

• consumer - consumer

• producer - consumer

• predator - prey

• parasite - host

An organism that lives on/in another organism, and depends on it for survival is called a ___.

• parasite

• host

• predator

• host

Before the harsh winter, a polar bear hunts seals for food. What is the best description for the relationship?

• consumer - producer

• producer - consumer

• predator - prey

• parasite - host

Which scenario best describes a consumer - producer relationship?

• a mouse eating grasses for food

• a hawk eating a mouse

• a flea that lives on a dog

• mistletoe growing in a tree

Which is not an example of a parasite/host relationship?

• a flea on a dog

• a tick on a horse

• a toad on a lily pad

• a barnacle on a whale

Why do parasites not want to harm their host?

• they aren't capable of harming the host

• they want to protect the ecosystem

• they depend on them for survival

• parasites need hosts to provide transportation

Which is not true about parasite-host relationships?

• both can be animals

• one can be a plant and the other an animal

• both can be plants

• one has to be an animal and the other one a plant

Aphids often live off of the sap of plants in a garden. Which is true about this relationship?

• the aphid is the parasite, the plant is the host

• the aphid is the host, the plant is the parasite

• the aphid is a producer, the plants is a consumer

• both aphid and plant are consumers

What is prey?

• an organism that refuses to cooperate within its population

• an organism that dies in a population crash

• an organism that is hunted and eaten by another organism

• a harmful organism that lives on or inside another organism

A predator is ____.

• an organism that is hunted and eaten by another organism

• a harmful organism that lives on or inside another organism

• an organism that hunts and eats another organism

• an organism that refuses to cooperate within its population