Which mineral important for nerve cell
function and muscle contraction is stored in
bone?
a. calcium
b. phosphorous
c. potassium
d. sodium
e. magnesium
A
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Chordin is an organizer protein found only in the dorsal regions of frog embryos. Removing chordin would most likely disrupt the determination of which structure?
A) central nervous system B) digestive system C) kidneys D) lungs
A DNA barcode is being developed for use in conservation biology based on ____
a. mitochondrial genes in plants b. chloroplast genes in plants c. nuclear genes in animals d. mitochondrial genes in animals e. bacterial genes
In animal bodies, __________ detect stimuli and
send signals to an __________ such as a brain. Fill in the blank(s) with the appropriate word(s).
In bristle worms, what is the name of paired, fleshy extensions of the body wall that are used for locomotion and gas exchange?
a. setae b. parapodia c. septa d. metanephridia