Biology Part Two

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

• Commensalism

• Mutualism

• Parasitism

Lichens are close associations of fungi and algae. The fungi hold the water supply and the algae perform photosynthesis to manufacture carbohydrates for both organisms.

• mutualism

• commensalism

• parasitism

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When energy travels from one trophic level of an energy pyramid to the next, some energy is always lost as

• heat

• solid waste

• carbon dioxide

• oxygen

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What will most likely be the result as humans move into new areas, forests are clear cut and housing developments are built?

• Global temperatures will decrease because trees are removed.

• Many organisms will lose their homes because their habitats have been destroyed.

• Better sanitation in the area will reduce the amount of pollution.

• The rainfall in the area will increase because there will be increased runoff.

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Which statement best explains why animals are considered heterotrophic?

• They are able to produce food through the process of photosynthesis.

• They are able to produce food through the process of respiration.

• They are able to obtain nutrients by decomposing plant and animal tissue.

• They are able to obtain nutrients by consuming other organisms or their products

The chemical colchicine disrupts cell division. Which cell process would most likely stop if colchicine were added to a culture of human liver cells?

• mitosis

• meiosis

• crossing over

• active transport

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Plant cells are able to produce their own food. This process happens in which structure?

• cell wall

• chloroplast

• mitochondrion

• vacuole

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Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...

• 16 chromosomes.

• 46 chromosomes.

• 8 chromosomes.

• 4 chromosomes.

What will most likely be the result if all of the mitochondria are removed from a plant cell?

• It will be unable to carry out respiration.

• It will lose water through osmosis.

• It will break down the ribosomes in the cell.

• It will be unable to photosynthesize

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What type of transport is illustrated?

• facilitated diffusion

• active transport

• diffusion

• osmosis