Chapter 17
Biology Today and Tomorrow with Physiology · 14 exercises
Problem 1
A species’ habitat is like its address, and its _____ is like its occupation.
3 step solution
Problem 3
Match the species interaction with a suitable description. a. A snake eats a mouse. b. A bee pollinates a flower while sipping its nectar. c. An owl and a wood duck both need a tree cavity to nest. d. A mosquito sucks your blood. mutualism _____ competition _____ predation _____ parasitism _____
4 step solution
Problem 4
Interspecifi c competition favors individuals of both species who are most _____ the competing species in their resource needs. a. similar to b. different from
4 step solution
Problem 5
The establishment of a biological community on a newly formed volcanic island is an example of _____, a. primary succession b. secondary succession c. competitive exclusion d. bioaccumulation
6 step solution
Problem 6
Match the terms with suitable descriptions. a. feed on plants b. feed on small bits of organic matter c. degrade organic wastes and remains to inorganic forms d. capture sunlight energy producers _____ herbivores _____ decomposers _____ detritivores _____
4 step solution
Problem 7
A chemical that bioaccumulates in a prairie food web would be found at highest concentrations in the tissues of _____. a. grasses b. grasshoppers c. grasshopper-eating sparrows d. sparrow-eating hawks
4 step solution
Problem 8
In an energy pyramid diagram of a prairie food web, which of these organisms would be in the lowest (and largest) tier? a. grasses b. grasshoppers c. grasshopper-eating sparrows d. sparrow-eating hawks
4 step solution
Problem 9
Match each substance with its largest environmental reservoir. One reservoir choice will be used more than once. a. seawater b. rocks and sediments c. the atmosphere carbon _____ water _____ phosphorus _____ nitrogen _____
4 step solution
Problem 10
Earth’s largest reservoir of fresh water is _____. a. lakes b. groundwater c. glacial ice d. water in living organisms
5 step solution
Problem 11
_____ convert nitrogen gas to a form producers can take up. a. Fungi b. Bacteria c. glacial ice d. water in living organisms
5 step solution
Problem 12
Land plants take in _____ for photosynthesis from the air. a. carbon dioxide b. phosphate ions c. ammonium ions d. bicarbonate ions
4 step solution
Problem 13
Aquatic producers get carbon for photosynthesis from _____. a. decaying organic matter b. phosphate ions c. ammonium ions d. bicarbonate ions
4 step solution
Problem 14
Greenhouse gases _____. a. trap heat in the atmosphere b. are released by burning of fossil fuels c. may cause global climate change if they accumulate d. all of the above
5 step solution
Problem 15
True or false? Imbalances in both the carbon cycle and nitrogen cycle contribute to increases in grcenhouse gases.
4 step solution