Biology Quiz

Two plant species that grow in the same area are shown. Which statement best explains a difference between Plant 1 and Plant 2?

• Plant 1 obtains more water from the soil because of its root surface area and root depth.

• Plant 1 obtains more sunlight because of its root surface area and root depth.

• Plant 2 obtains more water from the soil because of its root surface area and root depth.

• Plant 2 obtains more sunlight because of its root surface area and root depth.

Tags

112.20.b.11.A

Sea anemones and clown fish live together in the ocean. Which statement best describes one way sea anemones depend on clown fish for an abiotic factor in an ecosystem?

• Clown fish protect sea anemones from predatory fish.

• Clown fish decreases competition among sea anemones.

• Clown fish consume the remains of organisms paralyzed by anemones.

• Clown fish move water near sea anemones when dissolved oxygen levels are low.

Tags

112.20.b.11.A

A Texas Gulf Coast food web is shown. Which change would most likely cause a decrease in the sparrow population?

• An increase in the raccoon population.

• An increase in the diamondback rattlesnake population.

• An increase in the seeds population.

• An increase in the clover population.

Tags

112.20.b.11.A

Immediately after a forest fire, the primary consumers in the area will compete most for which biotic factor?

• Food

• Space

• Oxygen

• Sunlight

Tags

112.20.b.11.A

Four students were asked to create a graph representing a typical predator-prey relationship. Which graph shows a situation in which the number of predators in a population depends on the number of prey?

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Tags

112.20.b.11.A

Buffelgrass is an invasive species of grass from Africa that outcompetes native Texas grasses for space and water. Which long-term change to a Texas grassland would most likely occur due to the introduction of buffelgrass?

• The population of native grasses will increase.

• The population of native grasses will decrease.

• Buffelgrass offspring will develop traits like those of native grasses.

• Buffelgrass offspring will develop traits like those of other invasive species.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Trees lose water through transpiration, when water evaporates from leaves. The list describes the types of tree leaves that help reduce the amount of transpiration. Which of these is most likely observed in an area experiencing a long-term drought?

• Trees with broad leaves will be more healthy than trees with needlelike leaves.

• Trees with leaves that have waxy coverings will be more healthy than trees without wax-covered leaves.

• Trees with broad leaves will be more healthy than trees with small, flat leaves.

• Trees with leaves without any hair-like structures will be more healthy than trees with leaves covered with hairlike structures.

Tags

112.20.b.11.B

Parus major is a bird species that depends on caterpillars as a food source for its young. Caterpillars are most abundant during spring. The yearly increase in temperatures during springtime has gradually shifted, resulting in caterpillars developing approximately two weeks earlier than in the past. How will the changes in the availability of caterpillars most likely affect future populations of P. major?

• P. major will change their food source to plant leaves.

• P. major will lay their eggs earlier in the year.

• P. major will decrease the number of eggs laid at a time.

• P. major will hunt caterpillars earlier in the day when temperatures are cooler.

Tags

112.20.b.11.B

DDT is a pesticide that was once widely used to control agricultural pests and mosquitos. However, this pesticide caused the eggshells of certain birds, including the brown pelican, to become fragile and thin. The adults would then accidentally crush the eggs while trying to incubate them. What happened to brown pelican populations as a result of DDT use by humans?

• The populations increased much more slowly.

• The populations decreased as fewer eggs survived long enough to hatch.

• The populations remained stable over time.

• The populations increased as pelicans laid more eggs so that more offspring would survive.

Tags

112.20.b.11.B

Humans depend upon food that comes from the ocean. Some human activities negatively impact these food supplies. Which statement provides the best evidence that human activities contribute to this impact?

• Human visitors to coral reed systems break corals growing on the rocks.

• Humans catch marine fish at a faster rate than the fish are able to reproduce.

• Humans raise fish in a hatchery for commercial sale.

• Humans construct artificial reefs to attract tourists.

Tags

112.20.b.11.C