We can see only a small portion of the entire electromagnetic spectrum.

a. true
b. false


Answer: a. true

Biology & Microbiology

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What percent of the parental DNA (generation 0) remains in generation 4 according to the semi-conservative model of replication?

a. 100% b. 25% c. 50% d. 75%

Biology & Microbiology

Name one environmental factor that typically influences enzyme function

What will be an ideal response?

Biology & Microbiology

How do sensory cells communicate different types of information to the brain-touch versus light for example?

A. by firing action potentials of varying amplitudes in the same neuron B. by using different kinds of receptor potentials in the same neuron C. by using different kinds of electrical signals in the same neuron as the information is conveyed to the brain D. by using different neurons for different stimuli (e.g., light and touch) E. by firing action potentials at different frequencies in the same neuron

Biology & Microbiology

A scientist wants to manipulate glucose levels in amphibians to determine freeze tolerance at -5 Celsius. Which arena would suit this question best?

A) Laboratory experiment B) Field experiment C) Field surveys D) Observation in the wild

Biology & Microbiology