Site MapHelpFeedbackPractice Quizzing
Practice Quizzing
(See related pages)



1

The analysis of 475 root profile studies indicates _______.
A)that deeper rooting depths occur mainly in water-limited ecosystems
B)no clear trend in rooting depths of plants in tropical regions
C)that most roots were in the upper 2 meters of soil
D)all of the above
2

The number of observations in an experimental sample is called the .
3

The number of samples necessary for appropriate study design is indirectly related to the spatial scope of the study.
A)TRUE
B)FALSE
4

Many animals adapted to living in the desert can live entirely on moisture contained within their food. This is called .
5

When comparing kangaroo rats from dry, intermediate, and moist sites, Tracey and Walsberg found the rate of water loss to be greatest from those rats living in the _______ site.
A)dry
B)intermediate
C)moist
6

Stable isotope analysis is a process whereby radioactive materials are injected into an organism in order to study nutrient and energy flow input and output.
A)TRUE
B)FALSE
7

is a stable isotope of hydrogen and is also written as 2H.
8

Hydrogen isotope analysis has been effective in studies of _______.
A)plant water uptake
B)atmospheric acid deposition
C)nonpoint source pollution translocation
D)osmoregulation in migratory fish
9

Stable isotope studies performed by Ehleringer showed that during summer rain events, succulent plants utilized moisture stored in shallow soil depths, whereas woody plants used moisture stored at deeper soil depths.
A)TRUE
B)FALSE





To learn more about the book this website supports, please visit its Information Center.
(c)2005 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.


EcologyOnline Learning Center

Home > Chapter 5 > Practice Quizzing