Which experiment would be the least effective follow-up to the peacock butterfly studies?
a. Repeat in a forest area totally devoid of native butterflies.
b. Repeat in a wildlife sanctuary aviary after giving birds a chance to learn about peacock butterflies.
c. Repeat using young, inexperienced birds.
d. Repeat, and count survivors for three weeks.
e. Repeat using more butterflies and more blue tits in a larger area.
ANSWER: a
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The monarch butterfly is poisonous to birds
and so birds avoid eating them. Viceroy butterflies look very similar to monarch butterflies but are not poisonous. Because they look like monarch butterflies, birds also do not eat viceroy butterflies. This is an example of
a. resource partitioning. b. competitive exclusion. c. mimicry. d. camouflage. e. commensalism
In India, golden jackals that have been expelled from their pack have been known to attach themselves to a particular tiger, trailing it at a safe distance in order to feed on the big cat's kills. What type of relationship exists between the jackal and the tiger?
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How could an embryonic stem cell be used to repair a severed spine?
A) Embryonic stem cells secrete proteins that repair all other cell types, including nerve cells. B) Embryonic stem cells can grow into any other cell type, including a nerve cell. C) Embryonic stem cells can cause any other cell type to multiply. D) Embryonic stem cells are primarily involved with neural growth and development.
Subacute sclerosing panencephalitis is caused by a prion.
Answer the following statement true (T) or false (F)