The world's first photosynthetic organisms were also the first to adapt to intertidal zones. What is the name of the group that includes these organisms?
a. plants
b. cyanobacteria
c. algae
d. fungi
Ans: b. cyanobacteria
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Endosperm tissue is:
a. 1/2 n b. n c. 2n d. 3n e. 4n
Bat wings are a complex adaptation for flight that apparently arose fairly quickly in evolutionary history. Which of the following statements regarding bat wing evolution is false?
A. bat wings are a complex adaptation for flight that apparently arose fairly quickly in the fossil record B. scientists studying bat wing development often focus on proliferation and differentiation of chondrocytes in the growth plate C. bat wing morphology has changed substantially over the last 50 million years D. in experiments where Bmp growth factors were added during development, bat digits grow longer
The sequencing and analysis of an organism's genetic information is called
A. protein synthesis. B. gene therapy. C. genomics. D. northern blotting. E. PCR.
Adherence factors include ALL of the following EXCEPT
a. capsules. b. fimbriae. c. flagella. d. lipopolysaccharide layers.