<span>B cells recognize their specific antigen on the surface of the invading pathogen or recognize toxins secreted by pathogens. Then, some B cells clone into memory B cells, while others multiply as plasma cells, which generate antibodies that bind to pathogens and block them from entering your healthy cells.</span>
Answer:
Which organs of the male and female reproductive systems secrete fluids that act on the vagina? In the male reproductive system, the [1)Prostate Gland, 2)Bulbourethral Glands, 3)Seminal Vesicles, 4)Testes] secrete(s) a fluid that neutralizes acidic conditions in the vagina.
Answer:
A. fertility awareness
Explanation:
Birth control pills alternate a person's hormonal systems to prevent an egg from being dropped and fertilized, and a condom prevents the sperm from reaching the egg. Fertility awareness is the only one that does neither. It is a method that allows a woman to chart the fertility signs her body produces over the course of a menstrual cycle.
hope this helps!
Motivational quotes, finding things you enjoy doing and learning to ignore people who are negative. Also learning about Jesus could help as well (:
<span>3.
Why is cardiovascular endurance an important component of physical fitness?
B.Improved cardiovascular endurance increase energy and reduces stress.
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<span>4.
Out of the choices below, which cardiovascular endurance exercises expends the most calories in 60 min of exercise?
Running</span><span>
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