Which of the following molecules is part of the photosynthetic electron-transport chain between photosystems I and II? Select all correct choices
A. plastocyanin
B. plastoquinone
C. cytochrome b6f complex
A,B,C
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Which of the following is an example of a clone on the organism level?
A. Identical twins. B. Fraternal twins. C. Two plants of the same species. D. Offspring with characteristics of both parents. E. Chicks hatched from the same mother.
Of the following features, which is the most widely shared in the animal kingdom?
A. radial cleavage B. a body plan with symmetry C. protostome development D. molting of a cuticle or exoskeleton E. a triploblastic embryo
Reptiles are __________ (cold-blooded animals) with scales.
Fill in the blank(s) with the appropriate word(s).
The rash described as "teardrops on rose petals" is characteristic of
A) anthrax. B) chickenpox. C) herpes. D) smallpox. E) warts.