SF Chapter 7 Test
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- Why do the fennec, arctic, and gray foxes have different appearances?
- They have adapted to different environments.
- When do adaptations occur?
- They occur when survival characteristics are passed from one generation to another.
- What happens to a species that cannot adapt to changing conditions in its environment?
- The species may become extinct.
- Which type of organisms get energy by breaking down the remains of dead organisms?
- decomposers
- How is a food chain related to a food web?
- Food chains make up a food web.
- What is an organism that harms another in a symbiotic relationship?
- parasite
- Why does the amount of available energy decrease at higher levels of the energy pyramid?
- Some energy is used by organisms at each level for their own life processes.
- When different species with similar needs llive in an ecosystem with limited resources, what will happen?
- They will compete for available resources.
- Barnacles live on the side of a whale. The barnacles benefit but do not help or harm the whale. What kind of relationship is this?
- commensalism
- What would be a useful adaptation for prey?
- camouflage
- As bees collect nectar from flowers, they spread pollen from one flower to another. Both species benefit. Which type of relationship is this?
- mutualism
- In the nitrogen cycle, where do animals get their nitrogen?
- from plants
- Why are photosynthesis and respiration such important parts of the carbon cycle?
- Photosynthesis processes carbon dioxide into oxygen that animals breathe.
- Describe three different adaptations that occur in species and give an example of each.
-
structure (webbed feet)
behavior (migration)
body processes (hibernation)
(Or use your own examples) - How do producers and consumers use energy from the Sun? Include examples of the organisms.
- Provide your own answer here.