Placental mammals that are predacious meat eaters with large and conical-shaped canines are
A. chiroptera.
B. proboscidea.
C. cetaceans.
D. carnivores.
Answer: D
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Large ears is a rare trait in a mainland population of mice. A female mice homozygous for very large ears arrives at an island that already contains mice after sneaking onto a boat. This will lead to a population with a higher incidence of big ears than the mainland population because of ____
A. increased mutation. B. a bottleneck effect. C. genetic drift. D. natural selection. E. gene flow.
A lichen is sometimes a symbiotic association between a proteobacterium and a fungus
Indicate whether the statement is true or false.
If the two alleles for a particular gene are identical the gene pair is
A. homozygous. B. dominant. C. homologous. D. recessive. E. heterozygous.
A technique used to identify species by matching up sequence differences in a standard region of the genome is called
A. mutation counting. B. genome sequencing. C. DNA barcoding. D. nucleotide matching. E. PCR