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

1. A hypothesis must be supported by evidence.

2. An atom always contains the same number of protons as neutrons.

3. Neutrons are negatively charged.


1. FALSE
2. FALSE
3. FALSE

Biology & Microbiology

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Four of the five answers listed below are part of light-independent reactions. Select the exception

a. water only b. carbon dioxide c. RuBP (ribulose bisphosphate) d. PGAL (phosphoglyceraldehyde) e. PGA (phosphoglycerate)

Biology & Microbiology

Horses and donkeys can mate successfully to produce mules, which are always sterile. Which genetic isolating mechanism prevents horses and donkeys from becoming a single species?

A) Hybrid infertility B) Mechanical isolation C) Behavioral isolation D) Temporal isolation E) Hybrid inviability

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What was the basis for the original smallpox vaccine?

a. chickenpox virus b. cowpox virus c. rabies virus d. smallpox virus e. anthrax

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The citric acid cycle is a series of oxidation reactions that removes carbon atoms from substrates in the form of CO2

Once a molecule of acetyl CoA enters the citric acid cycle, how many complete cycles are required for both of the carbon atoms in its acetyl groupto be oxidized to CO2? (a) 1 (b) 2 (c) 3 (d) 4

Biology & Microbiology