Answer: D
Explanation: As a result of scarce resources, societies must answer three key economic questions: – What goods and services should be produced? – How should these goods and services be produced? – Who consumes these goods and services?
When a sperm and an egg are combined they create a zygote.
Explanation:
The testes are where sperm are manufactured in the scrotum. The epididymis is a tortuously coiled structure topping the testis, and it receives immature sperm from the testis and stores it for several days. When ejaculation occurs, sperm is forcefully expelled from the tail of the epididymis into the deferent duct. Sperm then travels through the deferent duct through up the spermatic cord into the pelvic cavity, over the ureter to the prostate behind the bladder. Here, the vas deferens joins with the seminal vesicle to form the ejaculatory duct, which passes through the prostate and empties into the urethra. When ejaculation occurs, rhythmic muscle movements propel the sperm forward.
Answer: menstruation
Explanation: the process in a female of discharging blood and other materials from the lining of the uterus at intervals of about one lunar month from puberty until menopause, except during pregnancy.
The biggest difference between dietitians and nutritionists lies in the legal restrictions that each title carries. Only nutritionists that become registered with Commission on Dietetic Registration (CDR) may legally declare themselves as dietitians or more precisely, registered dietitians (RDs).
