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