Which is avascular (lacks blood vessels)?
A. Epithelial tissue
B. Muscle tissue
C. Nervous tissue
D. Connective tissue
E. All of the choices are correct.
A
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Which choice describes the activation steps of a G protein-coupled receptor properly (and in correct order)?
A. Ligand binds to receptor, G protein activated, effector protein activated, second messenger made available B. Ligand binds to receptor, second messenger activated, G protein turned on, protein kinase activated C. Protein kinase activated, ion channel opened, ions enter and activate second messenger, G protein turned on D. Ion channel opened, G protein activated, second messenger synthesized, phosphatase ends signal
The simplest forms of independent life are called ____________________ organisms
Fill in the blank(s) with correct word
____________________ gated channels respond to stretching or other mechanical deformation
Fill in the blank(s) with correct word
Which law states that the total atmospheric pressure is a sum of the contributions of the individual gases?
A. Boyle's B. Henry's C. Charles's D. Dalton's