At one point in human development, tissue connects the fingers and the hand, giving the hand a
“webbed” appearance. Enzymes eventually destroy the cells of the webbing and the fingers separate.
These enzymes are probably liberated from the
a. chormosomes.
b. smooth endoplasmic reticulum.
c. lysosomes.
d. nucleus.
e. vacuoles.
C
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In the above figure, which letter points to the oviduct?
A) A B) B C) C D) D E) E
Seed banks ____
a. provide a source of seeds for farmers b. preserve seeds for museums c. preserve plant genetic diversity d. distribute seeds to member seed companies e. help to create additional plant diversity
Cells obtain energy by ________ food molecules such as glucose.
Fill in the blank(s) with the appropriate word(s).
Which one of the following parts of the eye is continuous with the cornea and forms the outer surface of the back of the eye?
A) retina B) choroid C) oval window D) iris E) sclera