Evidence that differentiating cells all contain complete genomes of an organism is provided by
a. comparison of frog and sea urchin development.
b. Some cells remain totipontent
c. totipotent cells give rise to multipotent cells
d. multipotent cells can give rise to pluripotent cells
e. the successful cloning of a sheep - Dolly
E
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First exposure to an allergen results in a violent hypersensitivity reaction
Indicate whether this statement is true or false.
__________ occurs when two species act as agents of selection upon one another. Fill in the blank(s) with the appropriate word(s)
Which characteristic is associated with hardwood species?
A. Thick cuticles B. Susceptibility to periodic fires C. Needle-shaped leaves D. Recessed stomata E. Adaptations for conserving water
Rheumatoid arthritis is a type (I/II/III/IV) hypersensitivity reaction that results when B cells produce autoantibodies that damage the joints
What will be an ideal response?