A scientist collects a spore from a new species of fungus and observes that this spore has a flagellum. What does the presence of a flagellum suggest about the lifestyle of this species?
A. It is aquatic.
B. It is an endomycorrhizal fungus.
C. It relies on insects for spore dispersal.
D. It is unicellular.
E. Its spores are produced asexually.
A
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In the scientific method, hypotheses lead most directly to:
A. predictions B. theories C. experiments D. observations E. conclusions
Which of the following might complicate the interpretation of ChIP-Seq data?
A. Because histones can be moved around or ejected from the chromatin, some DNA might not be sequenced if it is not wrapped around a histone B. DNA wrapped around nucleosomes can never be sequenced C. The regions of DNA wrapped around a histone is too long to be sequenced with current technologies D. The DNA between nucleosomes are too compacted to be sequenced
How did Hans Krebs discover the citric acid cycle?
What will be an ideal response?
Memory cell production is associated with
a. the body’s first line of defense. b. the body’s second line of defense. c. the body’s third line of defense. d. complement production. e. acute inflammation.