Which bone is also known as the “breastbone”?
a. clavicle
b. sternum
c. radius
d. ulna
e. humerus
ANSWER: b
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A ribosome consists of ____
a. two small subunits b. two large subunits c. three subunits of different size d. rRNA and ribosomal proteins e. tRNA and ribosomal proteins
Refer to the accompanying figure. What is the structure labeled as 6?
a. anus
b. gills
c. cilia
d. mouth
e. digestive tract
Soil Consists of:
a. rock particles of various sizes b. minerals c. microorganisms d. organic matter from dead organisms e. All of the above
You have a friend who tells you she is lactose intolerant. She asks you to explain what this means. You say to her:
A) "You cannot digest milk because you do not have the enzyme to break down the sugar in the milk." B) "You cannot digest milk because you cannot absorb it in your intestines." C) "You cannot digest the milk because you do not have the enzyme to break down the lipid in the milk." D) "You cannot digest the milk because you do not have the enzyme to break down the protein in the milk." E) "You are allergic to milk."