What evidence do paleobotanists look for that indicates the movement of plants from water to land?
A) waxy cuticle to decrease evaporation from leaves
B) loss of structures that produce spores
C) sporopollenin to inhibit evaporation from leaves
D) remnants of chloroplasts from photosynthesizing cells
Answer: A
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a. a parasite that is external to the body b. a parasite that is internal to the body c. an example of an individualistic hypothesis d. a zone between two communities e. the combination of species in an environment that is constant
Which organisms replicate cells by mitosis?
a. animals and bacteria b. animals and plants c. bacteria and plants d. archaea and bacteria e. archaea and plants
What group dominated the Carboniferous period and is now burned as coal?
A) Seedless vascular plants B) Algae C) Angiosperms D) Conifers E) Cycads
A microoganism has been described to you as living in hot acidic habitats in the waste piles of coal mines that regularly sustain a pH of 1 and a temperature of nearly 60°C. Which type of organism do you immediately assume it is?
A. Firmicutes B. Spirochaetes C. Archaea D. Actinobacteria E. Gracillucates