Which group of animals has one-way flow of air through its lungs, whereas all the others have tidal flow?
A. Mammals
B. Amphibians
C. Birds
D. Reptiles
Answer: C
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The gaining of electrons is referred to as ____
Fill in the blank with the appropriate word.
The exchange of a purine-pyrimidine base pair for the other purine-pyrimidine pair is:
A. a silent mutation. B. a transition mutation. C. a frameshift mutation. D. a nonsense mutation. E. a transversion mutation.
The key driving force in natural selection as first proposed by Charles Darwin is that _____.
A) mutations are common B) all forms of life reproduce C) resources are limited and organisms compete with each other for access D) it's always better to be bigger and stronger than others in the population E) living things are formed from cells
Which event in the typical life cycle of sexually reproducing fungi involves transition from a haploid to a diploid stage?
a. Karyogamy b. Plasmogamy c. Meiosis d. Germination e. Spore production