The bond in table salt (NaCl) is
a. polar.
b. ionic.
c. covalent.
d. double.
e. nonpolar
B
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Which of the following is likely NOT a common feature shared among all living organisms?
A. All living organisms use energy. B. All living organisms maintain organization. C. All living organisms have evolved over the course of many generations. D. All living organisms maintain some level of homeostasis. E. All living organisms are composed of similar structures.
Diagram the evolutionary relationships between Neanderthals and chimpanzees based on genomic data
What will be an ideal response?
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
The function of valves in the heart is to
a. form blood cells. b. participate in immunity. c. prevent backflow of blood. d. prevent clot formation. e. push blood ahead.