Which of the following is the correct path taken by sperm from site of production to site of ejection?
A. seminiferous tubules, epididymis, vas
deferens, ejaculatory duct, urethra
B. epididymis, seminiferous tubules, vas
deferens, urethra, ejaculatory duct
C. seminiferous tubules, vas deferens,
ejaculatory duct, epididymis, urethra
D. epididymis, seminiferous tubules, vas
deferens, ejaculatory duct, urethra
E. vas deferens, epididymis, seminiferous
tubules, ejaculatory duct, urethra
A
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Which of the following is a possible social consequence of long-term exponential growth in the human population?
a. Increased life expectancy b. Increased crime c. Harnessing of energy in fossil fuels d. Higher fertility rates
Thorough mixing of oxygen and nutrients within a lake occurs in:
a. winter and summer b. winter and spring c. spring and summer d. spring and autumn e. summer and autumn
Which of the following statements about the F2
generation produced in the dihybrid cross is NOT true? a. All offspring with the same phenotype have the same genotype. b. All offspring with the same genotype possess the same phenotype. c. It is not possible to determine the genotype of some individuals by their phenotype. d. It is possible to tell the genotype of some offspring by looking at their phenotypes. e. Nine genotypes and four phenotypes are produced.
The three main forms of nitrogenous wastes found in animals are
A. ammonia, urea, and uric acid. B. uracil, urea, and uric acid. C. amino acids, uracil, and uric acid. D. ammonia, urea, and amino acids. E. ammonia, urea, and uracil.