These bind to receptors initiating a signal causing metastasis

a. phosphatases
b. kinases
c. ligands
d. cytoplasmic proteins


Answer: c. ligands

Biology & Microbiology

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The organization of the vasa recta around the loop of Henle:

A. allows urea to be concentrated in the distal convoluted tubule. B. allows water to be maximally reabsorbed from the distal convoluted tubule. C. allows the concentration gradient established by the loop of Henle to be maintained. D. allows urea to be concentrated in the distal convoluted tubule and allows the concentration gradient established by the loop of Henle to be maintained. E. allows water to be maximally reabsorbed from the distal convoluted tubule and allows the concentration gradient established by the loop of Henle to be maintained.

Biology & Microbiology

Precipitation on a tropical island is greatest during June to August and lowest during January to April. This island must be located south of the equator

Indicate whether the statement is true or false

Biology & Microbiology

?-TuRCs contain ________-tubulin and nucleate microtubule growth from MTOCs known as ________

Fill in the blank with correct word.

Biology & Microbiology

Which is a benefit of sexual reproduction over asexual reproduction?

a. More offspring can be produced. b. The offspring are all identical to the parents. c. There is less variation from generation to generation. d. Evolution will occur at a slower rate when there are two parents. e. The interaction of the genes from both parents brings about genetic variatio

Biology & Microbiology