Scientists can fill in gaps in defining species by DNA sequence analysis.

a. true
b. false


a. true

Biology & Microbiology

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One of the challenges associated with eradicating cancer is its

A) simplicity. B) heterogeneity. C) homogeneity. D) heterozygosity.

Biology & Microbiology

Genetic monogamy is ____

a. predominant in mammals b. common in all animals c. rare d. less common than social monogamy e. beneficial to evolutionary fitness

Biology & Microbiology

How do the numbers of chromosomes in human cells compare with those in other eukaryotic cells?

Biology & Microbiology

In eukaryotic cells, the enzymes involved in the tricarboxylic acid cycle (Kreb's cycle) are located ________.

A. in the outer mitochondrial membrane B. in the matrix of the mitochondria C. in the cytoplasm D. in the cristae E. in the inner mitochondrial membrane

Biology & Microbiology