Which of the following is correct?

1.dragonfly and bat wings are homologous
2.dragonfly, bat and bird wings are homologous
3.dragonfly and bat wings are an example of divergent evolution
4.none of these
4

Biology & Microbiology

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The cranial cavity contains

a. the lungs and heart. b. the spinal cord. c. the brain. d. both b and c.

Biology & Microbiology

A(n) ________ vector contains promoters that result in high-level transcription of the gene cloned within a multicloning site.

A. phage B. shuttle C. expression D. chimeric

Biology & Microbiology

In what method do competitive inhibitors inhibit biochemical reactions?

a. Competitive inhibitors denature the enzyme. b. Competitive inhibitors reduce the concentration of enzyme. c. Competitive inhibitors increase the concentration of enzyme. d. Competitive inhibitors reduce the concentration of substrate. e. Competitive inhibitors increase the concentration of substrate.

Biology & Microbiology

The overall equation for the cellular respiration of glucose is

A) C5H12O6 + 6 O2 ? 5 CO2 + 6 H2O + energy. B) 5 CO2 + 6 H2O ? C5H12O6 + 6 O2 + energy. C) C6H12O6 + 6 O2 ? 6 CO2 + 6 H2O + energy. D) C6H12O6 + energy ? 6 CO2+ 6 H2O + 6 O2.

Biology & Microbiology