this is called acquired immunity
Answer:
d. contains secretions from three different accessory glands
Explanation:
The semen is not only made up of sperm. It also consists of secretions coming from three accessory glands: <u>seminal vesicles, prostate gland and bulbourethral gland.</u>
The seminal vesicles secrete<em> proteins, citric acid, sugar, etc</em>. and this accounts for<u><em> 2/3 volume of the semen</em></u>. It has a white color that has a tinge of brown.
The prostate glad, on the other hand, secretes a fluid that accounts for <u><em>1/3 volume of the semen.</em></u> This contains the Prostate Specific Antigen (PSA) that thins the semen.
The bulbourethral gland is also known as<em> "Cowper's gland." </em>This produces a secretion that ensures the sperm's motility.
Answer:
No they have not been getting "healthier".While fast-food chains have ostensibly been trying to offer more healthful options, a new study finds that the health impact of their menus has not improved — to the contrary, in fact.
Explanation:
The entire point of fast food is that it is cheap and quick to make. Healthier food is more expensive, at least assuming that you want food that is at all filling (a light salad and some fruit can be ready quickly but it won't fill you up). It will also take more effort to make it appetizing.
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