What characteristics below are NOT desirable in a model organism to study development?
A. short generation time
B. small size
C. large oocytes
D. produces many offspring
E. short life span
E. short life span
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If pollen of one species of plant lands on the stigma from another species, then ________
a. it binds but does not germinate b. a hybrid plant is produced that may or may not survive c. it germinates but the sperm will not fertilize the egg d. it does not bind because it lacks the proper recognition proteins
What are the two types of nucleic acid?
a. mRNA and tRNA b. mDNA and rRNA c. DNA and RNA d. none of the above (there is only one type of nucleic acid and it is DNA)
Which of these groups is (are) flagellated protist(s)?
a. parabasalids b. euglenoids c. diplomonads d. kinetoplastids e. all of these
Refer to the accompanying figure. What major function is associated with this type of tissue?
a. protecting underlying cells from abrasion b. moving of materials along a tissue surface c. producing secretions such as mucus and sweat d. secreting and absorbing e. strengthening