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Escherichia cell is plated on nutrient agar plates that each contain a different type of antibiotic. The shaded area represents growth of the bacteria. Which of the following plates contains bacteria that were most resistant to the antibiotic

A. A

B. B

C. C

D. D

Answer Explanation:

This is the plate with the most growth despite the presence of antibiotic cover.

Therefore, the Correct Answer is C.

Q #1: Which of the following body systems breaks down proteins into amino acids?

A. Digestive

B. Excretory

C. Circulatory

D. Endocrine

Answer Explanation

The digestive system breaks down complex food substances into small and less complex absorbable compounds. Proteins, for instance, are broken down to constituent amino acids through a digestion process that combines mastication and enzymatic breakdown.
Q #2: The component of an atom that possesses relatively little mass, thus being negligible in calculating the atomic mass number, is the:

A. Electron

B. Quark

C. Neutron

D. Proton

Answer Explanation

Rationale

Electrons are subatomic particles that have relatively little mass and are negligible when calculating atomic mass. The atomic number is usually the sum of protons and neutrons in the nucleus of the atom.
Q #3: Which structure of the female reproductive system is the source of the blood and mucosal tissue during menstruation? (You will find hot spots to Select in the image below. Select only the hot spot that corresponds to your answer.  

A.

B.

C.

D.

Answer Explanation

The inner lining of the uterus is the source of blood and mucosal tissue that is shed during menstruation.

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