What is one clue that snakes evolved from
ancestral lizards?
a. some give live birth to their young
b. some have bony remnants of hind limbs
c. all have internal fertilization
d. all have aminotic eggs
e. some actually have legs
B
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Some research has indicated that increased exercise is linked to increased telomere length in renewable tissues, like
blood. Assuming that telomerase levels are not increased by exercise, what might explain the increase in telomere length?
a. DNA replication occurred more frequently in individuals who exercised. b. Cell division occurred more rapidly in individuals who exercised. c. Telomerase activity was higher in individuals who exercised. d. Telomerase activity was lower in individuals who exercised. e. Fewer DNA replication errors occurred in individuals who exercised.
When adding Barritt's reagent to your MRVP broth, you see a red color change. This means that acetoin was produced of glucose metabolism.
a. true b. false
Answer the following questions true (T) or false (F)
1. Binary fission is more complicated than mitosis. 2. Gram-positive bacteria stain purple when the Gram stain is complete. 3. Prokaryotic cells that move in response to oxygen levels are said to display chemotaxis.
Formation of glycosidic bonds between carbohydrate monomers to synthesize polysaccharides would be called...
a) anabolism b) phosphorylation c) fermentation d) exergonic e) glycolysis