Show:
Food Web/Food Chain
Ecosystems
Symbiotic Relationships
Environmental Factors
Wild Card
100

In which order is energy transferred through a food chain?

  1. Sun → plants → animals
  2. Sun → animals → plants
  3. plants → Sun → animals
  4. plants → animals → Sun

1. sun--> plants--> animals

100

Base your answer to the question on the diagram below and on your knowledge of biology. The diagram represents trophic levels in an ocean environment.

The organisms found at the second trophic level of this pyramid would be

  1. producers
  2. decomposers
  3. carnivores
  4. herbivores

4. herbivores

100

An example of competition between members of two different species is

  1. mold growing on a dead tree that has fallen in the forest
  2. purple loosestrife plants growing in the same wet areas as cattail plants
  3. a coyote feeding on the remains of a deer that died of starvation
  4. two male turkeys displaying mating behaviors to attract a female turkey

2. purple loosestrife plants growing in the same wet areas as cattail plants

100

What is the difference between biotic and abiotic factors?

Biotic= LIVING. Ex: animals, plants.

Abiotic= NONliving. Ex. water, air, sun, rock.

100

A factor not shown in the diagram that provides energy for living organisms is

  1. carbon dioxide
  2. water
  3. the sun
  4. oxygen

3.  the sun

200

A corn field includes corn plants, mice, hawks, and various insects, fungi, and bacteria. Which nutritional role is correctly paired with organisms that carry out that role?

  1. heterotrophs – corn and bacteria
  2. producers – insects and fungi
  3. consumers – mice and insects
  4. decomposers – hawks and bacteria

3. consumers – mice and insects

200

A cactus plant, a snake, and a hawk can be members of the same

  1. community
  2. kingdom
  3. population
  4. species

1. community


200

In this type of symbiosis, organisms help each other.

mutualism

200

The diagram below shows two owls and a rabbit.

Which interaction between the owls is show in the diagram?

  1. reproduction
  2. competition
  3. migration
  4. hibernation

2. competition

200

Some organisms in an ecosystem are represented in the pyramid below.

In the pyramid, the arrows labeled X represent

  1. the loss of organisms due to predation
  2. a decrease in photosynthetic organisms
  3. the loss of energy in the form of heat
  4. a decrease in available oxygen

3. the loss of energy in the form of heat

300

If the number of frogs decreases, which population will most likely increase?

  1. eagles
  2. snakes
  3. crickets
  4. green plants

3. crickets

300

Each female housefly can lay approximately 500 eggs in a lifetime. She does this in several batches of about 75 to 150 eggs. Within a day, larvae (maggots) hatch from the eggs. They live and feed on organic material, such as garbage and feces. Scientists have calculated that a pair of flies beginning reproduction in April could be the ancestors of 191,010,000,000,000,000,000 flies by August.

Which statement best explains why this does not happen?

  1. Mutations develop in the young flies
  2. Environmental factors keep the population in check
  3. Flies continue to reproduce in large numbers.
  4. More female flies survive than male flies.

2. Environmental factors keep the population in check

300

A symbiotic relationship where one organism benefits and the other is harmed.

parasitism

300

A stable ecosystem can have high biodiversity because each species in that ecosystem

  1. occupies a different niche
  2. inhabits a different environment
  3. is part of a different community
  4. lives in a different biosphere

1. occupies a different niche

300

Many organisms live in the forest. The taller trees in the forest are often cut down for wood. How can this change in the environment be helpful to plants?

  1. Water erodes the soil.
  2. Animals have more food.
  3. Humans build new houses.
  4. More sunlight reaches the ground.

4. More sunlight reaches the ground.

400

Base your answer to the question on the diagram below and on your knowledge of biology.

Which statement most accurately predicts the result of interfering with populations in the web?

  1. Removing the cricket population will have little effect on the balance of the food web.
  2. Removing all the mountain lions from the food web will benefit the ecosystem.
  3. Removing the cricket and rabbit populations would cause the number of trees to decrease.
  4. Removing deer from the food web will affect the rabbit and grass populations.

4. Removing deer from the food web will affect the rabbit and grass populations.

400

The brown tree snake was accidentally introduced to the island of Guam during World War II. Since then, this snake has caused the extinction of twelve native bird species by eating their eggs and young.

One negative result of this snake’s introduction was most likely

  1. an increase in diversity as new species evolved to replace extinct species
  2. an increase in mosquitoes due to an increase in bird species in the environment
  3. a disruption of food chains and food webs in Guam’s ecosystems
  4. an abundance of brown tree snakes as a food source for humans

3. a disruption of food chains and food webs in Guam’s ecosystems

400

A symbiotic relationship in which one organism benefits and the other is neither helped nor harmed.

commensalism

400

Base your answer to the question on the information and graph below and on your knowledge of biology.

The graph shows the number of animals in a population throughout the course of a year. The population migrated into the area at the beginning of 2011.

The graph can best be used to illustrate

  1. a food chain
  2. ecological succession
  3. natural selection
  4. carrying capacity

4. carrying capacity

400

In a food web, which type of organism receives energy from the other three types?

  1. producer
  2. carnivore
  3. decomposer
  4. herbivore

3. decomposer

500

Which process occurs at each link in a food chain?

  1. All the energy is stored in a newly made structure.
  2. Some energy is released into the environment as heat.
  3. Chemical energy is recycled.
  4. Atoms cycle among living organisms, producing energy.

2. Some energy is released into the environment as heat.

500

The largest population that an environment can support without doing irrevocable damage to the environment is called the ___________.

carrying capacity

500

Mistletoe is a plant that lives on the branches of trees. The mistletoe plant sends its roots in through the bark of trees and takes away water and minerals that the tree needs. In this situation, the mistletoe plant is

  1. a parasite
  2. a predator
  3. a decomposer
  4. an autotroph
1. a parasite
500

The chart below shows the number of differences in genetic material between individuals within the same species. Scientists can use this information to determine which populations demonstrate the greatest amount of genetic diversity.

According to the chart, which two species would be more likely to survive if their environmental conditions changed?

  1. Tasmanian tiger and Tasmanian devil
  2. brown bear and whale
  3. Tasmanian tiger and wolf
  4. panda and wolf
4. panda and wolf
500

In 1865, a pond was surrounded by open fields. Today, the same area is swampy and surrounded by a forest. Which process is responsible for this change?

  1. metamorphosis
  2. conservation
  3. ecological succession
  4. crustal plate movement
3. ecological succession