Recent studies in Alaska have indicated that killer whales have recently begun to feed on sea otters. The kelp forest community that previously was comprised of only 3 trophic levels (secondary consumer = otters, primary consumers = urchins, primary producers = kelp) have now become 4 trophic level systems (tertiary consumer- killer whale). As predicted by trophic cascade theory, this change in the number of trophic levels results in… a. consumer limitation for killer whales b. resource limitation for kelp c. an increase in kelp abundance d. bottom up control e. resource limitation for urchins
Recent studies in Alaska have indicated that killer whales have recently begun to feed on sea otters. The kelp forest community that previously was comprised of only 3 trophic levels (secondary consumer = otters, primary consumers = urchins, primary producers = kelp) have now become 4 trophic level systems (tertiary consumer- killer whale). As predicted by trophic cascade theory, this change in the number of trophic levels results in… a. consumer limitation for killer whales b. resource limitation for kelp c. an increase in kelp abundance d. bottom up control e. resource limitation for urchins
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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38.
Recent studies in Alaska have indicated that killer whales have recently begun to feed on sea otters. The kelp forest community that previously was comprised of only 3 trophic levels (secondary consumer = otters, primary consumers = urchins, primary producers = kelp) have now become 4 trophic level systems (tertiary consumer- killer whale). As predicted by trophic cascade theory, this change in the number of trophic levels results in…
a.
consumer limitation for killer whales
b.
resource limitation for kelp
c.
an increase in kelp abundance
d.
bottom up control
e.
resource limitation for urchins
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