Organisms Interactions in Ecosystems

A bear catching and eating a salmon from a river is an example of...

• predation

• commensalism

• mutualism

• parasitism

Tags

NGSS.MS-LS2-2

A clownfish lives in an anemone. The anemone protects the clownfish by shocking the clownfish's predators. The clownfish protects the anemone from predators that may want to snack on the anemone. What is this relationship an example of?

• parasitism

• mutualism

• predation

• commensalism

Some birds live among cattle to eat the insects that the cattle stir up when they are grazing. The relationship between the cattle and the birds is an example of...

• mutualism

• parasitism

• commensalism

• predation

Bees gather nectar from flowers. Bees then spread the pollen from one flower to another flower, helping the plants reproduce. What kind of symbiotic relationship do the bees and flowers have?

• parasitism; the bees harm the flowers by getting nectar

• commensalism; the bees get nectar but the flowers are not affected

• mutualism; the bees get nectar and the flowers get to reproduce

• competition; the bees compete for space with flowers

Tags

NGSS.MS-LS1-4

Tapeworms can live in the digestive systems of some animals, including humans. The tapeworm consumes the food eaten by the host so that the host is robbed of nutrition and the tapeworm grows. What kind of symbiotic relationship do tapeworms and some animals have?

• commensalism

• parasitism

• mutualism

• predation

Increased food supplies in an ecosystem decrease competition because the competing organisms would...

• reproduce more often.

• have enough food to eat.

• store large quantities of food.

• have more space in which to live.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A lion would be considered a ________ of a gazelle.

• competitor

• offspring

• predator

• prey

There are three main types of symbiotic relationships: mutualism, commensalism, and parasitism. Which image depicts commensalism?

• 
• 
• 
• 

This is a type of symbiotic relationship where both organisms benefit.

• commensalism

• competition

• mutualism

• parasitism

The picture is an example of ___________ between the wolves.

• competition

• commensalism

• mutualism

• parasitism

Tags

NGSS.MS-LS2-2