____ tissue attaches to bones and is responsible for producing body movements
a. Skeletal muscle
b. Neural
c. Epithelial
d. Smooth muscle
e. Connective
ANSWER: a
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You are given two nucleic acids; one RNA and the other DNA. What are the main features to determine which is the DNA?
_____ DNA will have thymine instead of uracil in its nitrogenous bases. _____ DNA will have a double-stranded structure. _____ DNA will have ribose as the sugar in its backbone. _____ DNA will have uracil instead of thymine in its nitrogenous bases. _____ Adenine will be present in the DNA.
The RNA world proposal suggests that the first information molecules were
a. transfer RNA. b. ribosomes. c. messenger RNA. d. ribozymes. e. unpaired strands of DNA.
Chronosequences are useful because one can
A) view several taxa in one sere. B) view several seres in one region. C) measure the impacts of disturbance. D) count the number of trees in one sere.
In ribose, the 2'-C has an OH attached to it
Indicate whether the statement is true or false