Algae that are important sources of thickening agents like agar are known as
A) Rhodophyta.
B) Phaeophyta.
C) Chrysophyta.
D) Rhizobium.
E) Chlorophyta.
A
Bloom's Taxonomy: Knowledge
Section: Algae
Learning Outcome: 12.25
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You observe variation in the auditory signal that males use to attract females. Which of the following would be true if the signal is an accurate indicator of male quality?
a. The highest-quality males have the most common form of the signal. b. The highest-quality males have the most extreme form of the signal. c. Male quality is unrelated to signal variation. d. Only the highest-quality females prefer the highest-quality males. e. Females will use multiple signals to identify the highest-quality males.
An adaptive radiation may be triggered after the demise of a successful group
a. True b. False
The phase of mitosis in which the nuclear envelope breaks into small pieces is
A. D, which is anaphase. B. B, which is prometaphase. C. B, which is prophase. D. C, which is metaphase. E. C, which is telophase.
When a chromosome undergoes a deletion mutation, information is
a. reversed b. repeated c. transferred d. lost