The symbiotic relationship between green algae or cyanobacteria and fungi produce ________.
Fill in the blank(s) with the appropriate word(s).
Lichens
Lichen
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In a normal fruit fly, the second thoracic segment has wings and the third thoracic segment has halteres (small knobbed structures that act as a balance and guidance system). A mutant fruit fly is identified in which the third thoracic segment produces wings instead of halteres. This abnormal fly has a mutation in which of the following?
A. a maternal effect gene B. a gap gene C. a homeotic gene D. a segment polarity gene
Discuss the role of turgor in the crisp lettuce purchased at the grocery store looking much limper by the time it gets home
What will be an ideal response?What is the explanation for the mass extinction episode that brought about the demise of the dinosaurs?
What will be an ideal response?
Two species that sometimes mate and produce vigorous but sterile offspring are affected by
A) gametic isolation. B) reduced hybrid fertility. C) reduced hybrid viability. D) hybrid breakdown.