Mammalian, bird, and crocodile hearts have four chambers with two separate atria and ventricles to ensure ________ different circuits for blood flow.

A. two
B. eight
C. four
D. three


Answer: A

Biology & Microbiology

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In eukaryotes, photosynthesis takes place inside the ________.  

A.  chloroplasts B.  mitochondria C.  cytoplasm D.  Golgi apparatus

Biology & Microbiology

bio refers to a gene that governs a cell's ability to synthesize biotin from inorganic precursors. The

designation bio+ indicates:

a. that the allele is normal. b. that the allele is the mutant allele. c. that the bacterium is biologically active. d. that the bacterium is biologically inactive. e. that the bacterium cannot make its own biotin.

Biology & Microbiology

Describe the lytic and lysogenic bacteriophage replication cycles

What will be an ideal response?

Biology & Microbiology

Development ceases at birth.

Answer the following statement true (T) or false (F)

Biology & Microbiology