Question

the contraction of the prostate gland during ejaculation serves the purpose of _____.
adding nutrients to the seminal fluid
closing off the urethra to prevent the passage of urine
retaining blood in the penis to maintain an erection
question 7 (2.5 points)
gum infections can lead to serious conditions, such as heart disease.

1. true
2. false

question 8 (2.5 points)

Explanation:

Step1: Prostate gland function during ejaculation

The prostate gland contracts during ejaculation to close - off the urethra to prevent urine from passing into the urethra while semen is being ejaculated. It does not add nutrients to seminal fluid (seminal vesicles and prostate contribute some nutrients but not in this way during ejaculation), and it is not related to retaining blood in the penis for erection.

Step2: Gum infections and heart disease

Gum infections can release bacteria and inflammatory mediators into the bloodstream. These can contribute to the development of atherosclerosis and other heart - related problems, so gum infections can lead to serious conditions like heart disease.

Answer:

1. closing off the urethra to prevent the passage of urine
2. 1) True