True or false: A species is a fixed evolutionary unit

A. true
B. false


B

Biology & Microbiology

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What are the products of one turn of the Krebs cycle?  

A.  1 CO2, 2 NADH, 1 FADH2, 1 ATP B.  2 CO2, 3 NADH, 1 FADH2, 1 ATP C.  2 CO2, 6 NADH, 2 FADH2, 2 ATP D.  4 CO2, 6 NADH, 2 FADH2, 2 ATP E.  4 CO2, 12 NADH, 4 FADH2, 4 ATP

Biology & Microbiology

Which types of cells in the human body do not repair themselves if they have been damaged?

a. Skin b. Bone c. Blood d. Hair e. Nerve

Biology & Microbiology

Which process is absolutely necessary for sexual

reproduction to occur in a life cycle but is not necessarily required for organisms that only reproduce asexually? a. prokaryotic fission b. mitosis c. meiosis d. cytokinesis e. growth factor activation

Biology & Microbiology

Under what conditions should you use the Multiplication/Product Rule and what notation should you use?

a. With mutually exclusive events; P (A or B) b. With mutually exclusive events; P (A and B) c. With independent events;P(A or B) d. With independent events; P (A and B)

Biology & Microbiology