A lichen results from the mutualistic relationship between fungi and which of the following?
A) cyanobacteria or algae
B) green plants
C) heterotrophic bacteria
D) protozoans
Ans: A) cyanobacteria or algae
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Ulva is a genus of algae in the phylum Chlorophyta. What characteristic does Ulva share with ferns?
A. Intercellular communication via plasmodesmata. B. The production of sperm and eggs for reproduction. C. The ability to synthesize organic nutrients using light. D. An embryonic sporophyte housed in maternal tissues. E. Vascular tissue for the transport of substances.
Based on molecular evidence, fungi were present on land at least ____ years ago
a. 1 billion b. 500 million c. 250 million d. 125 million e. 10 million
Exocrine glands:a
have a duct. b. cannot secrete mucus. c. are made of endothelial tissue. d. secrete hormones. e. transport products through interstitial fluid.
How many does 1m equal?
A. 100 mm B. 1000 mm C. 100 cm D. .01 cm