Refer to the accompanying figure. Which statement about label 1 is FALSE?
a. It is haploid.
b. It was produced by mitosis.
c. It was produced from a megaspore.
d. It is not a product of fertilization.
e. It is part of the sporophyte generation.
e
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Mole percent (G+C) of DNA is useful for determining relatedness at the ________ level.
A. class B. genus C. kingdom D. None of the choices are correct.
The largest lymphatic duct, which runs along the anterior vertebral column, is the ______.
What will be an ideal response?
Why are transgenic animals engineered as models of human disease, rather than studying the disease in humans? What will be an ideal response?
Pea fowl (peacocks and peahens) show sexual dimorphism -- males have long blue-green tail feathers with eyespots, while females have short brown tail feathers. Which statement best describes the graphed data about peacocks? 
A. The fewer eyespots that a peacock has in his tail, the more mates he attracts. B. Actually eyespots have very little to do with mate-attracting activities. C. The more eyespots that a peacock has in his tail, the more mates he attracts. D. There are no peacocks with more than 165 eyespots. E. There are no peacocks with less than 140 eyespots.