Living Systems Review

1. Living Systems Review February 5

2. All of the following are examples of living things interacting with each other EXCEPT — A. birds preying on insects living in the grass B. squirrels spreading the seeds of trees by burying them C. fish eating plants and other smaller fish D. frogs sleeping in the mud at the bottom of the pond

3. Plants interact with living and non-living components in their environment. Which is an interaction with a non-living element? A. Small insects eating the stems of the plants B. Humans breathing oxygen released by plants C. Bees gathering pollen from flowers of plants D. Sandy soil holding the roots of the plants

4. Pacman frogs live in South America. Some of their traits are listed here. What habitat change might be harmful for a Pacman frog? A. Heavy rains in the afternoons over a period of days B. An increase in population of several kinds of birds C. The introduction of a new species that eats rodents D. A change in weather, leading to cooler temperatures

5. Which adaptation of a cactus is related to its interactions with living organisms in its environment? A. roots that grow deep underground to reach water B. large, expendable stem that allows it to store water C. a waxy, outer coating to prevent the loss of the water D. spines to protect it from animals that want its water

6. Which of the following is a question that could be asked in a scientific investigation of how organisms depend on their environment? A. How does temperature affect the formation of soil? B. What time of day produces the most precipitation? C. What effect would a drought have on a prairie ecosystem? D. How fast does water erode different types of rock?