Which scientist was a skilled lens maker and first observed cell structure in protists?
a. Robert Hooke
b. Theodor Schwann
c. Anthony van Leeuwenhoek
d. Matthias Schleiden
c. Anthony van Leeuwenhoek
Antony van Leeuwenhoek was a skilled lens maker and first observed cell structure in protists.
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The fly agaric mushroom (Amanita muscaria) and the death cap mushroom (Amanita phalloides) are
members of which fungal phylum?
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
Transpiration results from
a. the polar nature of water molecules. b. the drying power of air. c. cohesion-tension forces. d. photosynthesis. e. all of these.
Which cellular protein is found in tight junctions?
A) occludins B) tubulin C) connexons D) cadherins E) dynein
Iron is required for primary production. Which of the following is correct to predict?
a. Iron fertilization of oceans can raise N2 in the atmosphere. b. Iron fertilization of oceans can lower O2 in the atmosphere. c. Iron fertilization of oceans can raise CO2 in the atmosphere. d. Iron fertilization of oceans can lower CO2 in the atmosphere.