These dead cells conduct water and minerals
and have pits in their cell walls. This cell is
a. a sieve-tube member.
b. a sclerenchyma.
c. a vessel member.
d. a tracheid.
e. more than one of these
D
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Jasmonic acid is structurally similar to prostaglandins. Indicate whether the statement is true or false
A population of caterpillars feeds on the leaves of trees in a forest and is in turn food for birds that eat them off the tree leaves. Given this information, which adaptation would be most likely to evolve?
A) Caterpillars would evolve to a larger size. B) Caterpillars would evolve to eat the bark as well as the leaves. C) Birds would evolve to eat more types of insects. D) Caterpillars would evolve to a color that matched the leaves they eat.
Diabetes insipidus results from an insufficient production of:
a. ADH. b. aldosterone. c. angiotensin II. d. ANP. e. renin.
In a grazing food chain,
A. secondary consumers eat detritus. B. secondary consumers eat photosynthetic organisms. C. primary consumers eat detritus. D. all the consumers are primary consumers. E. primary consumers eat photosynthetic organisms.