BIO 100 EXAM 3 2025 QUESTIONS
AND ANSWERS
Sponge - ....ANSWER ...-I am a simple, asymmetrical animal that is almost
entirely marine
Cnidarian - ....ANSWER ...-I have both polyp and medusa body forms
Flatworm - ....ANSWER ...-I'm a trematode parasite
Annelida - ....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 - ....ANSWER ...-I have a water vascular system and tube feet
Chordate - ....ANSWER ...-I have a notochord
Arthropoda - ....ANSWER ...-the phylum to which jointed-legged
invertebrates belong, including insects, arachnids and crustaceans
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, Nematode - ....ANSWER ...-Round worms. The first animals to have a full
digestive tract (2 openings).
Mollusca - ....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? - ....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? - ....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? -
....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? - ....ANSWER ...-Bald eagles
primarily ate fish while Golden eagles ate terrestrial animals like the fox
Ectotherms - ....ANSWER ...-Animals that do not have internal control of
their body temperature are called ____________.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
AND ANSWERS
Sponge - ....ANSWER ...-I am a simple, asymmetrical animal that is almost
entirely marine
Cnidarian - ....ANSWER ...-I have both polyp and medusa body forms
Flatworm - ....ANSWER ...-I'm a trematode parasite
Annelida - ....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 - ....ANSWER ...-I have a water vascular system and tube feet
Chordate - ....ANSWER ...-I have a notochord
Arthropoda - ....ANSWER ...-the phylum to which jointed-legged
invertebrates belong, including insects, arachnids and crustaceans
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, Nematode - ....ANSWER ...-Round worms. The first animals to have a full
digestive tract (2 openings).
Mollusca - ....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? - ....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? - ....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? -
....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? - ....ANSWER ...-Bald eagles
primarily ate fish while Golden eagles ate terrestrial animals like the fox
Ectotherms - ....ANSWER ...-Animals that do not have internal control of
their body temperature are called ____________.
....COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
