Cats can see in the dark because they have a special mirror¾like layer of cells behind their retina called the tapetum lucidum. When light passes through the retina, it is reflected back through it by this layer of cells, and this provides additional stimulation to the retina's light receptors.
What will be an ideal response?
Nonargument
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INSTRUCTIONS: Select the conclusion that follows in a single step from the given premises. Given the following premises: 1 . P • (?H ? D) 2 . ?(?P • ?H) 3 . (P ? ?H) • (?P ? H)
A) P ? ?H 3, Equiv B) ?H ? D 1, Simp C) (P • ?H) ? D 1, Assoc D) P • (H ? D) 1, Impl E) P • H 2, DN
The Pragmatic Movement of Inquiry was created by ____
A. James B. Dewey C. Rorty D. Peirce
“Alternative energy” generally is considered to provide substitutes for what current modes of energy?
a. Petroleum liquids and electricity generators c. Liquid hydrogen and liquid nitrogen b. Dilithium and trilithium crystals d. Solar energy and wind energy
Unlike pseudoscientific statements, scientific predictions _______
A. always deal with natural phenomena B. are found helpful by people C. try to make sense of the world D. can be disconfirmed by observations