Review 5th 6-weeks Test

The table shows some observations made by four students during a field trip to a nature area. Which student made observations of a community of organisms? 

• 1

• 2

• 3

• 4

A science class is planning a field trip to a local farm that has a large pond. Which of the following lists the order of biological organization from smallest to largest that the students can expect to find at the pond?

• Organism, community, population, ecosystem

• Organisms, population, community, ecosystem

• Population, organism, community, ecosystem

• Population, organism, ecosystem, community

The rocky material left behind by a retreating glacier forms what is called a moraine. When primary succession occurs on a moraine, which life-forms will help create the soil by breaking down bare rock? 

• insects

• lichens

• grasses

• deciduous trees

Which of the following statements regarding the nitrogen cycle is correct?

• Nitrogen is never a component of organic molecules.

• Decomposers provide protein to the atmosphere.

• Ammonia and carbohydrates are formed from nitrogen during lightning storms.

• Nitrogen-fixing bacteria in the soil convert atmospheric nitrogen into a usable form for other organisms.

Leaf-cutter ants harvest leaves and carry them to fungi that convert plant material into a useable form for the ants to digest. The fungi depend on the leaves for nutrients. The ants also produce an antibiotic on their bodies that helps protect the fungi from harmful bacteria.

Which of these explains the relationship between the leaf-cutter ants and the fungi?

• Predation

• Mutualism

• Competition

• Commensalism

Leaf-cutter ants harvest leaves and carry them to fungi that convert plant material into a useable form for the ants to digest. The fungi depend on the leaves for nutrients. The ants also produce an antibiotic on their bodies that helps protect the fungi from harmful bacteria.

Which of these explains the relationship between the leaf-cutter ants and the fungi? Which of the following justifies your answer ..

• Ants feed on the fungi

• Both the ants and the fungi benefit from each other

• Both organisms consume the same resource for energy

• The ants receive energy from the fungi and the fungi are unaffected

Based on the energy flow between trophic levels in an energy pyramid, how much energy would be expected to be found at the secondary consumer level in this energy pyramid? (just numbers, no units)

The populations of which organisms will most likely increase as a result of a disease that suddenly reduced the population of Texas horned lizards?

• Grasses and ants

• Ants and grasshoppers

• Grasshoppers and Texas Cottonmouths

• Texas cottonmouths and red shouldered hawks

After a forest fire, wild grasses and weeds begin growing. This process is considered-

• primary succession because pioneer species appear

• primary succession because there are no large trees

• secondary succession because soil is already present

• secondary succession because the field contains inorganic matter

Based on this food web, which organism occupies multiple trophic levels?

• Canada goose

• Eastern cottontail

• Loggerhead sea turtle

• Sand dollar