A person in puberty is more likely to have acne
because they
a. sweat more.
b. produce more saliva.
c. have more surface flora.
d. produce more sebum.
e. do more than one of these
D
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A physician discovered a cancerous tumor in the cartilage of a patient. What type of tumor is this?
A. myeloma B. retroviral C. sarcoma D. leukemia E. cyst
All eukaryotes have a membrane-delimited nucleus.
Answer the following statement true (T) or false (F)
Which plants are best adapted for very dry, hot environments such as deserts?
A) C2 plants B) C3 plants C) C4 plants D) CAM plants
The cerebral cortex of human consists of (A)_____ layers. During brain development, the cell population that migrates first will form the (B)______, and the second population of cells to migrate becomes (C)_______.
a. (A) six (B) cortical plate (C) layer VI b. (A) six (B) subplate (C) layer VI c. (A) ten (B) subplate (C) layer I d. (A) ten (B) cortical plate (C) layer I