Which of the following characteristics is an example of a qualitative trait?
A) flower color
B) arm length
C) body weight
D) root length
A
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When growth factors bind to receptors on the cell surface, the signaling cascade will ____
a. initiate cell growth b. prevent cell division c. trigger cell death d. cause the cells to enter the G0 state e. trigger mitosis without the other stages of the cell cycle
A layer of host cell membrane attached to a virus is called:
a. An envelope b. A protein coat c. A capsomere d. A capsid e. A plasmid
Humans domesticated the rose from a wild ancestor with large, scented flowers. Why might fragrant chemicals in flowers be adaptive for wild roses?
A) They attract herbivores. B) They repel seed dispersal agents. C) They attract pollinators. D) They prevent seed germination.
Mushrooms with gills are the fruiting bodies of members of the (Ascomycota/Basidiomycota/Deuteromycetes/Zygomycota).
Fill in the blank(s) with the appropriate word(s).