Semen normally contains secretions from the seminal vesicles and the prostate gland, and about 50 to 150 million sperm per milliliter. Why is sperm required in such large numbers?
What will be an ideal response?
Sperm is required in such large numbers because during procreation only a small fraction of them ever reaches the ovum during procreation. Also, the sperm work together to achieve fertilization; for example, many die and block the os of the cervix for the other sperm, and the combined enzyme production of all sperm are necessary for a single spermatozoon to fertilize the ovum.
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____________ is the name of a movement designed to genetically "improve" the human race through legislated breeding rules
Answer:
An example of a motor tic is ________________
Fill in the blank(s) with correct word
Diane is a typical 68-year-old woman who is in a committed relationship. She indicates that sex is important in her life. It is likely that Diane will also state that ____
a. sex is more important than relationships b. relationships and closeness to her partner are more important than sex c. she is having more sex now that she is post-menopausal because she no longer worries about getting pregnant d. she is not satisfied with the quality of her sex life
Developmental psychologists today place greater emphasis on how children learn to regulate their own emotions and behavior
Indicate whether this statement is true or false.