In which group did the amniote egg first evolve?
a. amphibians
b. birds
c. reptiles
d. mammals
e. frogs
C
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Radioisotopes ____
a. are unstable and emit energy and particles to stabilize themselves. b. are different elements from the "standard" elements. c. are very stable and do not change over time. d. are so unstable that they rarely exist in nature e. exist only for carbon and oxygen
The genome in the rhinovirus is a positive single stranded RNA. this means
a. it can serve as a template for DNA b. it can serve as a template for protein translation c. it can serve as a template for carbohydrate biosynthasis d. it can serve as a template for mRNA transcription
Which of the following is an INCORRECT pairing?
A) electrolytes; anions B) synthesis; endothermic C) hydrolysis; hydrogen bonds D) catabolism; exothermic E) dehydration; anabolism
Substances contained in food that are necessary for good health are called:
What will be an ideal response?