A physician discovered a cancerous tumor in the cartilage of a patient. What type of tumor is this?

A. retroviral
B. leukemia
C. sarcoma
D. cyst
E. myeloma


Answer: C

Biology & Microbiology

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Dinoflagellates became photosynthetic via secondary endosymbiosis

Indicate whether the statement is true or false.

Biology & Microbiology

The female gametophyte in flowering plants usually consists of ____

a. a complete pistil b. seven cells embedded in floral tissues c. a single ovary d. a seed e. shoot parts bearing female flowers

Biology & Microbiology

In mammalian kidneys, blood in the vasa recta and fluid in the loop of Henle flow in opposite directions to create a ____________ multiplier system.  

A.  reversible B.  homeostatic C.  countercurrent D.  exponential E.  stepped

Biology & Microbiology

A cat has a total of 38 chromosomes in its body cells. How many in its gametes?

A. 17 B. 19 C. 15 D. 10

Biology & Microbiology