Each day, a bean plant holds its leaves horizontally during the day but folds them close to its stem at night. This is an example of:
a. photoperiodism
b. vernalization
c. circadian rhythm
d. phytochromatic pattern
e. systemic acquired rhythm
c
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Why might it be easier to determine the bacterium that caused pneumonia than one that caused a wound infection?
A. There are very few microorganisms that can cause pneumonia, while there are many that can cause wound infections. B. Bacteria that cause pneumonia can be identified with few tests. Many bacteria are normally found on the skin and may be in the wound complicationg indentification of the pathogen. C. We have much better tests for bacteria in the lungs than we do in wounds. D. The techniques of 16S rRNA sequencing are easier to perform on a sample taken from the lungs than a sample taken from a wound.
DNA replication occurs through a ________ process.
A) conservative B) semiconservative C) dispersive D) transformative
A red blood cell ____
a. does not possess a nucleus b. is made in the plasma c. can divide in the plasma d. has the ability to repair itself e. lives up to 120 months
Although organisms result from a combination of genetic and environmental factors, only _______ factors are passed on to the next generation.
Fill in the blank(s) with the appropriate word(s).