______ are the only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart.
A. Amphibians
B. Birds
C. Fishes
D. Mammals
E. Reptiles
C. Fishes
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What is the similarity between the flora found in a female at the menopause stage and a female at the pre-puberty stage? How different is it from a female between the stages of puberty and menopause?
What will be an ideal response?
Which of the following inheritance patterns is matched with an inaccurate molecular basis?
A. Incomplete dominance: The protein produced by a wild-type allele affects the phenotype in a concentration-dependent manner. B. Codominance: Two proteins are produced in heterozygotes. C. Sex-influenced: Hormones alter the expression of proteins encoded by dominant and recessive alleles. D. X-linked: Hemizygotes with the recessive allele do not make a functional protein, but heterozygotes do. E. Simple Mendelian inheritance: The protein produced by a single allele cannot produce the dominant phenotype.
What will happen to the pH inside of a thylakoid that is exposed to light?
A. It will increase. B. It will depend on the starting pH of the stroma. C. It will depend on the starting pH in the thylakoid. D. It will not change. E. It will decrease.
Which statement(s) best describes elements of the Fisher–Muller hypothesis for adap-tive advantage of sexual reproduction?
a. Sex breaks down linkage disequilibrium. b. Sex slows down adaptive evolution by disrupting coadapted gene complex-es. c. Sex facilitates the combination of favorable mutations that originated in dif-ferent individuals into advantageous genotypes. d. Sex accelerates adaptive evolution. e. A, C, and D.