What invention about 11,000 years ago led to a
boom in the human population?
a. the wheel
b. agriculture
c. the printing press
d. the steam engine
e. all of these
B
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Which of the following statements regarding gut microbes is correct?
a. There are only 8-10 species of fungus in the human gut b. the gut microbiota is compromised of bacteria and their viruses only c. There are at least 100 types of fungus in the human gut
Which of the following organelles is not generally found in animal cells?
A) food vacuole B) centriole C) endoplasmic reticulum D) central vacuole E) mitochondrion
Entamoeba histolytica can cause amoebic dysentery. It moves using pseudopodia, feeds heterotrophically, and is unicellular. Entamoeba histolytica is which of the following?
A. a protozoan B. an alga C. a slime mold D. a diatom E. a dinoflagellate
Suppose you are a botanist and you discover a plant that has a small free-living gametophyte that requires external water for fertilization and a large free-living sporophyte. The free-living sporophyte eventually releases spores from sporangia on the margins of its leaves. Into which group should you classify this plant?
a. gymnosperms b. angiosperms c. seedless vascular plants d. bryophytes