Organisms (Quiz 1) 2019

Fish in a small pond will most likely depend on which of the following biotic factors to meet their needs?

• Plants that exchange gases with the pond water.

• Insects that feed on other insect in the pond.

• Water birds that prey on amphibians and small fish.

• Large predators that consume aquatic vertebrates.

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Bromeliads are small plants that grow attached to the sides of large trees high above the ground in warm, damp and densely crowded tropical rainforests. Bromeliads do this because they are in competition with other plants for -

• soil

• heat

• light

• water

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Examine the diagram provided. Based on the diagram, which two organisms compete for food resource?

• Hawks and coyotes

• Coyotes and mountain lions

• Squirrels and hawks

• Mountain lions and antelopes

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How many organisms in this food web eat only producers?

• 2

• 3

• 4

• 5

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Which sentence best describes how energy flows through this pyramid?

• Energy is transferred down each level of the energy pyramid.

• The energy lost at each level is consumed by organisms in the top level.

• The organisms at the bottom level provide energy directly to organisms in all levels.

• Energy transferred from organisms in one level to those in the level above.

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Fish in a lake have to compete for space. Different fish have different optimal temperature ranges. The graph shows the temperature ranges of four fish species.

At which temperature range will there be the most competition for space among species?

• $5\degree C\$ to $10\degree C$

• $10\degree C$ to $15\degree C$

• $15\degree C$ to $20\degree C$

• $25\degree C$ to $30\degree C$

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The graph below shows the range of water conditions preferred by three species of fish in an Ozark stream. Water with which of these conditions would cause the most competition for resources among all three species of fish.

• Very cold, very clear, and very fast

• Very warm, very clear, and very slow

• Mild temperatures, some suspended particles, flows very fast

• Mild temperatures, some suspended particles, flows at a medium speed

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Black walnut trees produce a nontoxic chemical that becomes highly toxic when it is exposed to air and soil. How does this chemical help black walnut trees compete with plants growing nearby?

• By attracting herbivores to the other plants

• By suppressing the growth of the other plants

• By increasing the photosynthesis rates in the other plants

• By limiting the amount of water available to the other plants

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Organisms such as prairie dogs, foxes, black-footed ferrets, and grasses are commonly found in prairie ecosystems. Which organism does NOT compete with other organisms for food?

• Grass

• Prairie-dog

• Black-footed ferret

• Fox

Sunlight is extremely important for the development and growth of coral. This important factor of survival for the coral reef is ______.

• symbiotic

• abiotic

• biotic

• parasite

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