In reproductive cloning, when a clone grows from a single cell to a full organism, the development happens through ________.
A. mitosis
B. cloning
C. surrogate growth
D. meiosis
Answer: A
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Which of the following statements is false?
A. The rapid depolarization phase of the action potential in pacemaker cells results from the influx of sodium through voltagegated sodium channels. B. The repolarization of the pacemaker cells following an action potential allows for the heart to relax between contractions. C. The resting membrane potential of cardiac pacemaker cells gradually becomes less negative on its own. D. Pacemaker cells repolarize by opening voltage-gated potassium channels. E. None of the answer options is false.
Quality control should be performed on which two organisms to determine the validity of deoxyribonuclease (DNase) media?
a. M. atlantae and M. lacunata b. M. lacunata and M. lincolnii c. M. nonliquefaciens and M. canis d. M. osloensis and M. lacunata
When a hypothesis stands after years of tests and is consistent with all of the data gathered, it is referred to as a(n) ________
a. educated guess b. law of nature c. scientific theory d. sampling error e. prediction
Which of the following triggers flowering for plants sensitive to photoperiod?
A) temperature B) night length C) day length D) intensity of sunlight