When cells are not responding to normal

controls over growth and division, they form a
tissue mass known as a
a. metastasis.
b. malignancy.
c. tumor.
d. carcinogen.
e. nucleosome


C

Biology & Microbiology

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When the pituitary gland releases thyroid-stimulating hormone (TSH), the hormone circulates throughout the entire bloodstream, yet only the cells of the thyroid gland respond. This specificity is due to the presence of _____ in the cell membranes of the thyroid

1.adhesion proteins 2.receptor proteins 3.recognition proteins 4.transport proteins

Biology & Microbiology

Which will exhibit the most shared maternal effects (uterine environment, etc.), identical or fraternal twins?

What will be an ideal response?

Biology & Microbiology

Which component of the following reaction is the substrate? sucrose + sucrase + water ? sucrase + glucose + fructose

A) sucrose B) sucrase C) glucose D) fructose

Biology & Microbiology

Electron transport takes place in the ________

A) mitochondria B) chloroplasts C) cytoplasm D) ribosomes

Biology & Microbiology