7th Grade #5: Populations, Communities, and Ecosystems

succession that occurs in an area with no soil

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

succession that occurs in an area where soil is already present

• ecological succession 
• primary succession 
• secondary succession
• pioneer speciles

the first organisms that appear in an ecological community

• ecological succession 
• primary succession 
• secondary succession
• pioneer species

The picture shows what type of succession?

• primary
• secondary
• tertiary
• quadanary

What type of succession is shown going from figure A to figure B?

• primary succession
• eutrophication
• secondary succession
• intermediate

Tags

NGSS.MS-LS2-4

A tick and a dog have this type of relationship.

• mutualism
• commensalism
• neutralism
• 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
• commensalism
• competition
• parasitism

Tags

NGSS.MS-LS2-2

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 _______.

• commensalism
• mutualism
• neutralism
• competition

A relationship between two organisms in which one organism benefits and the other is unharmed.

• Mutualism

• Competition

• Parasitsm

• Commensalism

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.

• Mutualsim 
• Parasitism 
• Commensalism