Test
Which of the following is an abiotic factor?
A. Tree B. Rabbit C. Sunlight D. Bacteria
Sunlight
Which law states that matter cannot be created or destroyed?
Law of Conservation of Mass
Rain, hail, and snow are all examples of _____.
Precipitation
Which of the following is a biotic factor that might limit a population of mice?
A. water for the mice to drink
B. rainy weather that floods the mice’s nests
C. owls that prey on the mice
D. Rocks in which the mice can hide from predators
owls that prey on the mice
What is a single living thing called?
Organism
Which shows a single path of energy flow?
Food chain
In terms of its effect on population, which factor is most similar to birth rate?
Immigration
Which of the following describes a population?
A. 85 great white sharks off Cape Cod
B. thousands of dolphins and whales around Hawaii C. a mating pair of seagulls migrating to an island D. corals, sponges, algae, reef fish, lobsters, and giant clams
85 great white sharks off Cape Cod
A group of the same species living in the same area is a
Population
Which organism makes its own food?
Consumer
What do consumers release as they break down food to obtain energy?
carbon dioxide and water
In one form of nitrogen fixation, the energy of _____ splits nitrogen molecules into atoms.
electrical, lightning
Population density equation:
Population ÷ Area
What are the four parts of ecosystem organization:
Organism
Population
Community
Ecosystem
What are the three types of consumers:
Herbivore
Carnivore
Omnivore
Mushrooms and bacteria are important _____.
Decomposers
27. Which of the following terms describes a straight series of connections among organisms that feed on each other
food chain
Put the water cycle steps in order:
Condensation
Evaporation
Precipitation
What process turns liquid water into water vapor?
Evaporation
Which role breaks down dead plants and animals?
Decomposer
Difference between a community and an ecosystem:
A community includes all the living organisms in an area.
An ecosystem includes both living (biotic) and nonliving (abiotic) things in an area.
Name two limiting factors that can affect a population.
Food, Water, predators, disease, weather, Space
What happens to energy as you move up an energy pyramid?
As you move up an energy pyramid, energy decreases because energy is lost as heat at each level.
Name two biotic and two abiotic factors you might find in a desert ecosystem?
Biotic: Cactus, lizard
Abiotic: Sand, heat (sunlight)
What is different about how producers and consumers get energy?
Producers make their own food using sunlight, while consumers get energy by eating other organisms.