How would you classify a hormone that is made from cholesterol, such as a sex hormone?
A) steroid hormone
B) amine hormone
C) prostaglandin
D) protein hormone
E) peptide hormone
A
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How do dimples on a golf ball reduce form drag?
A. produce a turbulent boundary layer B. produce a laminar boundary layer C. both A and B D. dimples do not reduce form drag
The vagina is
A) lined by simple columnar epithelium rich in goblet cells. B) similar to the inner lining of the uterus. C) another term for the cervix. D) a muscular tube extending between the uterus and the external genitalia. E) a muscular tube extending between the uterus and the anus.
Answer the following statements true (T) or false (F)
1. The nucleolus is the “brain” of the cell; it directs all cell activity. 2. The flagella are the “tail” of the sperm cell and act to propel it. 3. Ribosomes are the “protein factories” of the cells. 4. The things that make rough endoplasmic reticulum rough are ribosomes. 5. The nucleolus plays an important role in the formation of ribosomes.
________ are the largest of the lymphatic vessels, and they empty into the ________.
A. Collecting ducts; subclavian arteries B. Lymphatic trunks; subclavian veins C. Collecting ducts; subclavian veins D. Lymphatic trunks; collecting ducts E. Lymphatic trunks; subclavian arteries