Scientists use the term "theory" when discussing the theory of gravity because ________
a. it is better to be vague than to be proven wrong
b. they anticipate finding locations where things fall up
c. not all scientists are convinced about the reality of gravity
d. a theory is the term used to describe a hypothesis that is very thoroughly tested
d
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A monophyletic group is a group that
A) descended from one ancestor. B) has the same fitness level. C) possesses one taxonomic trait that is the same. D) shares one phylogenetic marker.
As a plant cell grows and matures, additional layers are added to the cell wall to construct the more rigid ____,
a. middle lamella b. secondary cell wall c. primary cell wall d. plasma membrane e. central vacuole
What is the significance of the Miller-Urey experiment?
What will be an ideal response?
What are the two most convincing pieces of evidence that both genetic and environmental factors play significant roles in the development of obesity?