Describe at least 3 effects of oil spills on marine organisms and the marine environment
What will be an ideal response?
Oil spills harm marine organisms and environments in a number of ways. Oil is toxic to many species that ingest the oil directly or through their food. This can have severe effects on the immune, reproductive and other systems of these animals. Oil can also have a clogging effect on the feeding apparatus of benthic and planktonic animals, indirectly killing these animals by starvation. Oil is known to kill birds and mammals such as otters by removing their means of insulation, which results in death to these animals by exposure. In addition to its effects on animals, oil can coat coastlines, thereby rendering them uninhabitable to marine organisms. This could also result in larger ecological effects by reducing species diversity and altering the species composition of an area.
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Aneurysms are the result of which of the following? Select all correct choices
A. the deterioration of elastin and collagen in arteries B. the deterioration of elastin and collagen in veins C. pressure pulses in arteries D. pressure pulses in veins
Describe, in order from outside to inside, the cell layers of the typical plant root. Trace the path of water entering the root
What will be an ideal response?
The region where loops of Henle are located is
indicated by a. A. b. B. c. C. d. E. e. both A and B
The idea that entire populations of species change over time to become better adapted to their environments is called _________.
Fill in the blank(s) with the appropriate word(s).