TAMU ENTO 201 Bernal Exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
How long ago did life begin? - CORRECT ANSWER - 3.5 Billion years ago
Define: Phylum - CORRECT ANSWER - A taxanomic group of organism types
Define: Species - CORRECT ANSWER - The fundamental unit of systematics and
taxonomy
What percent of all described species are insects? - CORRECT ANSWER - ~ 50%
Define: Colonial Theory Hypothesis - CORRECT ANSWER - During unicellular division,
cells failed to separate. Over time this evolved into multicellular organisms.
What are suspected to have been the first invertebrates on land? - CORRECT ANSWER -
Crustaceans
Define: Phytophage - CORRECT ANSWER - Plant eater
Are plants or athropods dominant in terms of biomass? - CORRECT ANSWER - Plants @
~78%
Define: Trophic Level - CORRECT ANSWER - Levels of food/energy transfer in a
foodchain
Define: Entomophilous Plants - CORRECT ANSWER - Insect loving plants - these plants
depend on insects for pollination
, Wasp like organisms are classified under ___________. - CORRECT ANSWER -
Hymenoptera
Fly like organisms are classified under ___________. - CORRECT ANSWER - Diptera
Intangible effects of insects on humans - CORRECT ANSWER - Tend to be indirect and
positive
Tangible effects of insects on humans - CORRECT ANSWER - Tend to affect us directly
and are generally negative
Insects account for what percent of lost food for Americans? - CORRECT ANSWER - 15-
20%
What percent of insects are pests? - CORRECT ANSWER - 0.125%
Parasitoids generally favor which gender? - CORRECT ANSWER - Female
Approximately how old is Earth? - CORRECT ANSWER - 4600 Million years old
How long ago are algae estimated to have first emerged? - CORRECT ANSWER - 3500
million years ago
During which time period did life explode? - CORRECT ANSWER - The Cambrian era
What characteristics are used to classify organisms? - CORRECT ANSWER -
Morphology, behavior, molecular, and ontogenetic evidence
ACTUAL Exam Questions and CORRECT
Answers
How long ago did life begin? - CORRECT ANSWER - 3.5 Billion years ago
Define: Phylum - CORRECT ANSWER - A taxanomic group of organism types
Define: Species - CORRECT ANSWER - The fundamental unit of systematics and
taxonomy
What percent of all described species are insects? - CORRECT ANSWER - ~ 50%
Define: Colonial Theory Hypothesis - CORRECT ANSWER - During unicellular division,
cells failed to separate. Over time this evolved into multicellular organisms.
What are suspected to have been the first invertebrates on land? - CORRECT ANSWER -
Crustaceans
Define: Phytophage - CORRECT ANSWER - Plant eater
Are plants or athropods dominant in terms of biomass? - CORRECT ANSWER - Plants @
~78%
Define: Trophic Level - CORRECT ANSWER - Levels of food/energy transfer in a
foodchain
Define: Entomophilous Plants - CORRECT ANSWER - Insect loving plants - these plants
depend on insects for pollination
, Wasp like organisms are classified under ___________. - CORRECT ANSWER -
Hymenoptera
Fly like organisms are classified under ___________. - CORRECT ANSWER - Diptera
Intangible effects of insects on humans - CORRECT ANSWER - Tend to be indirect and
positive
Tangible effects of insects on humans - CORRECT ANSWER - Tend to affect us directly
and are generally negative
Insects account for what percent of lost food for Americans? - CORRECT ANSWER - 15-
20%
What percent of insects are pests? - CORRECT ANSWER - 0.125%
Parasitoids generally favor which gender? - CORRECT ANSWER - Female
Approximately how old is Earth? - CORRECT ANSWER - 4600 Million years old
How long ago are algae estimated to have first emerged? - CORRECT ANSWER - 3500
million years ago
During which time period did life explode? - CORRECT ANSWER - The Cambrian era
What characteristics are used to classify organisms? - CORRECT ANSWER -
Morphology, behavior, molecular, and ontogenetic evidence
