You find a wormlike animal while scuba diving and want to determine whether it is a nudibranch, a polychaete, or a flatworm. Finding which of the following traits would best help you classify the mystery animal?
A) bristle-like structures on tiny appendages
B) a coelom
C) the ability to swim
D) bright coloration
E) sexual reproduction
Answer: A
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As a result of nondisjunction, an individual with Turner syndrome is genotypically XO, lacking one of the sex-determining chromosomes. Taking this into account, the fusion of the gamete containing the extra chromosome with a normal gamete could result in an individual with the genotype
A) XXX. B) XXY. C) XYY. D) A or B E) A, B, or C
In the absence of environmental sources of water, such as precipitation or condensation, how would water get into the pitcher of a carnivorous plant?
A. through the phloem B. from the fruit C. from the cuticle D. through the xylem E. from the leaves
Evolution can be defined as change in ________ in a population
Fill in the blank(s) with correct word
Microorganisms that catabolize sugars into ethanol and hydrogen gas would most likely be categorized as
A) aerobic respirers. B) anaerobic respirers. C) heterolactic fermenters. D) homolactic fermenters. E) alcohol fermenters.