Which of the following is a characteristic of nematodes?
a. Having nerve cords along the body
b. Having a segmented body
c. Having an incomplete digestive system
d. Having a specialized excretory system
a. Having nerve cords along the body
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Some of the functions of the eukaryotic organelles are performed in bacteria by the:
A. plasma membrane. B. capsule. C. cell wall. D. nucleoid area. E. flagella/cilia.
If there was random mating and no evolution in the kangaroo rat population shown here, in the next generation if there were 1000 individuals, about how many dark brown kangaroo rats would you expect to see?
a) 24 b) 10 c) 218 d) 78 e) 2
As plants invaded the land, all of the following were true EXCEPT
A. there was a greater availability of light for photosynthesis. B. there was an increased threat of desiccation of unprotected cells. C. there was an increased threat from predation by animals. D. there was a greater concentration of carbon dioxide available in the atmosphere.
Both minisatellite repeats (10-100 bp) and microsatellite repeats (< 10 bp) are called variable number tandem repeats and are used for DNA fingerprinting to unambiguously identify specific individuals by their DNA. How does this technique work?
What will be an ideal response?