ENTO 201 Exam 1 Bernal TAMU
UPDATED ACTUAL Exam Questions and
CORRECT Answers
phyla - CORRECT ANSWER - major groupings of the animal kingdom and are comprised
of superclasses, classes etc.
sequence of phylum? - CORRECT ANSWER - Kingdom, phylum, superclass, class, order,
family, genus, species
Insects make up how much of all described species? - CORRECT ANSWER - more than
half
How many species of insects are known? - CORRECT ANSWER - 1 million
How many species of insects exist? - CORRECT ANSWER - 8 million
What is the Colonial Theory Hypothesis? - CORRECT ANSWER - a unicellular organism
divided and daughter cells failed to separate, resulting in the conglomeration of cells into one
organism- later developing specialized tissues
Choanaflagellates - CORRECT ANSWER - free living unicellular and colonial flagellate
eukaryotes considered to be the closest living relative to animals
What colonized the land first? - CORRECT ANSWER - plants
What were the first invertebrates on land? - CORRECT ANSWER - primitive crustaceans
, Plants dominate because of ________ rather than _________. - CORRECT ANSWER -
biomass, number
How many insect species feed on plants? - CORRECT ANSWER - 1/2
Plants account for what percent of global biomass? - CORRECT ANSWER - 78%
Dr. Terry L. Erwin - CORRECT ANSWER - Smithsonian- Panama
Central America
More than 30 million species -1980's
Out of this- 12% described
How did Erwin come up with 30 million? - CORRECT ANSWER - fogging 19 specimens
of one tree species
Why was Erwin's study important? - CORRECT ANSWER - scientists asked how many
species were on the planet
How many insect species are alive today? - CORRECT ANSWER - 1x10^19
Food or trophic webs - CORRECT ANSWER - plants form the basis of all food webs,
insects dominate almost all trophic levels of webs
trophic level - CORRECT ANSWER - the levels of food or engergy transfer in a
foodchain, plants or autotrophs form the first level, herbivores the second, primary carnivores
third, and other carnivores fourth and fifth
How much leaf area is consumed by insects in tropical forrests? - CORRECT ANSWER -
12-15%
UPDATED ACTUAL Exam Questions and
CORRECT Answers
phyla - CORRECT ANSWER - major groupings of the animal kingdom and are comprised
of superclasses, classes etc.
sequence of phylum? - CORRECT ANSWER - Kingdom, phylum, superclass, class, order,
family, genus, species
Insects make up how much of all described species? - CORRECT ANSWER - more than
half
How many species of insects are known? - CORRECT ANSWER - 1 million
How many species of insects exist? - CORRECT ANSWER - 8 million
What is the Colonial Theory Hypothesis? - CORRECT ANSWER - a unicellular organism
divided and daughter cells failed to separate, resulting in the conglomeration of cells into one
organism- later developing specialized tissues
Choanaflagellates - CORRECT ANSWER - free living unicellular and colonial flagellate
eukaryotes considered to be the closest living relative to animals
What colonized the land first? - CORRECT ANSWER - plants
What were the first invertebrates on land? - CORRECT ANSWER - primitive crustaceans
, Plants dominate because of ________ rather than _________. - CORRECT ANSWER -
biomass, number
How many insect species feed on plants? - CORRECT ANSWER - 1/2
Plants account for what percent of global biomass? - CORRECT ANSWER - 78%
Dr. Terry L. Erwin - CORRECT ANSWER - Smithsonian- Panama
Central America
More than 30 million species -1980's
Out of this- 12% described
How did Erwin come up with 30 million? - CORRECT ANSWER - fogging 19 specimens
of one tree species
Why was Erwin's study important? - CORRECT ANSWER - scientists asked how many
species were on the planet
How many insect species are alive today? - CORRECT ANSWER - 1x10^19
Food or trophic webs - CORRECT ANSWER - plants form the basis of all food webs,
insects dominate almost all trophic levels of webs
trophic level - CORRECT ANSWER - the levels of food or engergy transfer in a
foodchain, plants or autotrophs form the first level, herbivores the second, primary carnivores
third, and other carnivores fourth and fifth
How much leaf area is consumed by insects in tropical forrests? - CORRECT ANSWER -
12-15%
