Ecology Week 1

Which symbols best describe mutualism?

• +,+

• +,-

• -,0

• +,0

Which symbols best describe parasitism?

• +,+

• +,-

• -,0

• +,0

Tags

NGSS.MS-LS2-2

Which symbols best describe commensalism?

• +,+

• +,-

• +,0

• 0,0

Tags

NGSS.MS-LS2-2

A tick and a dog have this type of relationship.

• mutualism

• Commensalism

• parasitism

Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.

• mutualism

• parasitism

• commensalism

• competition

Red-billed oxpeckers are birds that feed on parasites found on an impala. The impala gets rid of parasites and the red-billed oxpeckers get a yummy dinner. This is an example of _______.

• Mutualism

• Parasitism

• Commensalism

• Competition

Tags

NGSS.MS-LS2-2

The largest number of individuals that an environment can support long term is...

• carrying capacity

• emigration

• immigration

• population density

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What happens if a population grows past its carrying capacity?

• The population keeps growing

• The population starts to die off

• The entire species will go extinct

• The carrying capacity just increases

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Something that regulates the size of a population is called...

• a limiting measure

• a limiting factor

• carrying capacity

• biodiversity

Tags

NGSS.MS-LS2-4

What is the carrying capacity of the graph?

• 1000

• 8000

• 800

• 600

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4