BIO 100 Exam 3 UPDATED Exam
Questions and CORRECT Answers
Sponge - CORRECT ANSWER - I am a simple, asymmetrical animal that is almost
entirely marine
Cnidarian - CORRECT ANSWER - I have both polyp and medusa body forms
Flatworm - CORRECT ANSWER - I'm a trematode parasite
Annelida - CORRECT ANSWER - Chitinous hairlike extensions, anchored in the skin and
projecting from the cuticle, called chaetae, are present in every segment in most of my groups
Echinoderm - CORRECT ANSWER - I have a water vascular system and tube feet
Chordate - CORRECT ANSWER - I have a notochord
Arthropoda - CORRECT ANSWER - the phylum to which jointed-legged invertebrates
belong, including insects, arachnids and crustaceans
Nematode - CORRECT ANSWER - Round worms. The first animals to have a full
digestive tract (2 openings).
Mollusca - CORRECT ANSWER - (snails, clams, squids, octopuses) have a soft body that
in many species is protected by a hard shell
What does the parasite, Euhaplorchis californiensis, found in the Carpinteria Salt Marsh do to
infected fish? - CORRECT ANSWER - Makes them much more likely to be eaten by a
bird
, What is the relationship between the diversity of trematode parasites and the diversity of species
in Salt Marshes? - CORRECT ANSWER - The higher the species diversity the higher the
diversity of trematode species making the trematode diversity and indicator of overall species
diversity
What was the cause of the decline of the Bald eagles on the Channel Islands? - CORRECT
ANSWER - DDT in the food web causing egg shell thinning
What was the important difference between bald eagles and golden eagles that affected the
Channel Island kit fox population? - CORRECT ANSWER - Bald eagles primarily ate fish
while Golden eagles ate terrestrial animals like the fox
Ectotherms - CORRECT ANSWER - Animals that do not have internal control of their
body temperature are called ____________.
The kidneys are part of what system? - CORRECT ANSWER - Excretory
In what system do you find dendrites and synapses? - CORRECT ANSWER - Nervous
Any period of non-movement can best be considered - CORRECT ANSWER - resting
behavior.
A good way to understand the natural behavior of a species is by observing, recording and
analyzing animals in their natural environment. - CORRECT ANSWER - True
Behaviors such as being vigilant, moving in and out of hiding places to avoid being seen, fleeing
the area, and even fighting back if attacked are best categorized as - CORRECT
ANSWER - Self-defense behaviors
When making observations it can be useful to offer the animal food to get it to move closer to
you so you can more easily observe it. - CORRECT ANSWER - False
Questions and CORRECT Answers
Sponge - CORRECT ANSWER - I am a simple, asymmetrical animal that is almost
entirely marine
Cnidarian - CORRECT ANSWER - I have both polyp and medusa body forms
Flatworm - CORRECT ANSWER - I'm a trematode parasite
Annelida - CORRECT ANSWER - Chitinous hairlike extensions, anchored in the skin and
projecting from the cuticle, called chaetae, are present in every segment in most of my groups
Echinoderm - CORRECT ANSWER - I have a water vascular system and tube feet
Chordate - CORRECT ANSWER - I have a notochord
Arthropoda - CORRECT ANSWER - the phylum to which jointed-legged invertebrates
belong, including insects, arachnids and crustaceans
Nematode - CORRECT ANSWER - Round worms. The first animals to have a full
digestive tract (2 openings).
Mollusca - CORRECT ANSWER - (snails, clams, squids, octopuses) have a soft body that
in many species is protected by a hard shell
What does the parasite, Euhaplorchis californiensis, found in the Carpinteria Salt Marsh do to
infected fish? - CORRECT ANSWER - Makes them much more likely to be eaten by a
bird
, What is the relationship between the diversity of trematode parasites and the diversity of species
in Salt Marshes? - CORRECT ANSWER - The higher the species diversity the higher the
diversity of trematode species making the trematode diversity and indicator of overall species
diversity
What was the cause of the decline of the Bald eagles on the Channel Islands? - CORRECT
ANSWER - DDT in the food web causing egg shell thinning
What was the important difference between bald eagles and golden eagles that affected the
Channel Island kit fox population? - CORRECT ANSWER - Bald eagles primarily ate fish
while Golden eagles ate terrestrial animals like the fox
Ectotherms - CORRECT ANSWER - Animals that do not have internal control of their
body temperature are called ____________.
The kidneys are part of what system? - CORRECT ANSWER - Excretory
In what system do you find dendrites and synapses? - CORRECT ANSWER - Nervous
Any period of non-movement can best be considered - CORRECT ANSWER - resting
behavior.
A good way to understand the natural behavior of a species is by observing, recording and
analyzing animals in their natural environment. - CORRECT ANSWER - True
Behaviors such as being vigilant, moving in and out of hiding places to avoid being seen, fleeing
the area, and even fighting back if attacked are best categorized as - CORRECT
ANSWER - Self-defense behaviors
When making observations it can be useful to offer the animal food to get it to move closer to
you so you can more easily observe it. - CORRECT ANSWER - False
