A certain species has offspring that require a very large amount of parental care. Predict their mating system.
A. polyandrous
B. monogamous
C. polygynous
D. monotonous
Answer: B
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You would like to know if two populations of fish are reproductively isolated and thus different species, according to the biological species concept. Which of the following would provide evidence for a prezygotic barrier to reproduction?
A. The populations form viable offspring, but the offspring are less fit. B. a hybrid fetus never reaches term C. Cell surface proteins of one species eggs prevent sperm from another species attaching, so the sperm cannot fertilize it. D. One is usually found on the south side of the lake while the other is found on the north side
Amphotericin B, nystatin, and the imidazoles are all
A. fungal enzymes. B. antifungal drugs. C. culture media supplements for fungi. D. mycotoxins. E. None of the choices are correct.
Individuals with extra or missing copies of one or more chromosomes are called ____
a. polyploids b. haploids c. aneuploids d. euploids e. diploids
Match the skeletal muscle protein on the left with its function on the right
A) binds along the length of thin filaments to regulate myosin head association B) links thick filaments to Z line C) stabilizes thin filaments D) major component of thin filaments E) bundles parallel arrays of actin filaments at Z line F) major component of thick filaments G) M line myosin filament-binding protein H) mediates Ca2+ regulation of contraction I) major protein of sarcoplasmic reticulum J) attaches actin filaments to Z line 1) actin 2) myosin 3) tropomyosin 4) troponin 5) titin 6) nebulin 7) myomesin 8) ?-actinin 9) Ca2+-ATPase 10) CapZ