Together, all muscle types make up what percentage of the body?
a. 20 percent
b. 30 percent
c. 40 percent
d. 50 percent
e. 60 percent
ANSWER: d
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Which of the following is NOT a basic task of
all animal digestive systems?
a. nutrient absorption b. elimination c. digestion d. ingestion e. energy production
Refer to Figure 50-4. Which of the following statements concerning the corpus luteum is false?
a. It is responsible for the second peak in the line labeled 1. b. It is responsible for the second peak in the line labeled 2. c. It is responsible for the first peak in the line labeled 1. d. It develops from the empty follicle following ovulation. e. It is most active between days 18 to 26.
What is a hydrophobic region?
What will be an ideal response?
Altruistic adolescents tend to have higher levels of:
A. intelligence B. empathy C. all of the above D. self esteem