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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.

Therefore, the Correct Answer is B.

Q #1: Parasitic worm infestation is hypothesized to be damaging to the host. However, scientists have recently discovered that worm infestation can relieve the effects of certain autoimmune disorders, in which of the following ways should the hypothesis be modified, given the new findings?

A. Lack of worm infestations is the cause of some autoimmune disorders.

B. Worm infestation reduces the severity of certain autoimmune disorders

C. Worm infestation prevents the body from immune malfunction

D. Worm infestations exacerbate the body's immune reactions

Answer Explanation

The new findings can be used to generate a hypothesis to reflect the beneficial aspect of worm infestations in certain autoimmune disorders, indicating that they can help reduce the severity of the condition.
Q #2: Which of the following structures drains oxygen-depleted blood from the kidneys?

A. Renal artery

B. Urethra

C. Ureter

D. Renal Vein

Answer Explanation

The renal vein drains deoxygenated blood from the kidneys to the inferior vena cava.
Q #3: Which of the following nucleotides is only found in RNA?

A. Guanine

B. Thymine

C. Uracil

D. Adenine

Answer Explanation

Uracil is the nucleotide that is only found in RNA. The other nucleotides are found in both DNA and RNA

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