Most burrowing animals of estuaries exchange gases with their environment through their skin
Indicate whether the statement is true or false
F
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The ras proto-oncogene family is a group of related genes that slow or stop the progression of cancer
a. True b. False Indicate whether the statement is true or false
How can predators influence the species richness and structure of communities?
a. Increasing the carrying capacity of their prey. b. Destabilizing competitive interactions among their prey. c. Increasing the population sizes of disease organisms. d. Increasing the population sizes of their prey. e. Reducing the population sizes of their prey.
The basic unit of ecology is the individual because it
A) is the basis for ecosystems. B) is the unit on which natural selection acts. C) cannot be further reduced to smaller parts. D) passes genetic information to successive individuals.
Which of the following water features is(are) directly affected by eutrophication?
A. Lake Erie B. Gulf of Mexico C. Chesapeake Bay D. All of the above are correct. E. None of the above are correct.