Placental mammals that are predacious meat eaters with large and conical-shaped canines are

A. chiroptera.
B. proboscidea.
C. cetaceans.
D. carnivores.


Answer: D

Biology & Microbiology

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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

Biology & Microbiology

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.

Biology & Microbiology

A lichen is sometimes a symbiotic association between a proteobacterium and a fungus

Indicate whether the statement is true or false.

Biology & Microbiology

If the two alleles for a particular gene are identical the gene pair is

A. homozygous. B. dominant. C. homologous. D. recessive. E. heterozygous.

Biology & Microbiology