bio 170 final exam review
Comprehensive Questions
with Verified Answers
Graded A+
1. what are the oldest diploblasts Answer Answer: ctenophores
2. why are lichens important Answer Answer: - as early species that help break down
rocks to form soil
-as bioindicators of air pollution
-as food for many species of wildlife
-as dyes for human yarn and cloth
3. a body of multicellular fungus is called a what Answer Answer:
mycelium
4. where to lichens get their energy Answer Answer: the sun
5. chytrid fungi Answer Answer: - have caused about 1/3 of amphibian species to decline
-have caused about 200 amphibian species to almost go extinct
-are found all around the
1/
15
, world range from parasitic to
saprophytic
6. the scavenger community of the african savanna includes Answer
Answer: - jackals
-hyenas
-vultures
7. what animal is a major recycler of organic matter in the African
savanna Answer Answer: dung beatles
8. the rigid exoskeleton of some ecdysozoans has protective and
supportive advantages, but it poses which problem? Answer Answer: the
exoskeleton cannot grow as the animals body grows
9. in the history of animals, which characteristics arose after the
cnidarians Answer Answer: three embryonic layers, bilateral symmetry
10. Toby Spribille and his colleagues at UM changed out
understanding of lichens by showing that Answer Answer: they can be
made up of several types of fungi
11. the ancestor of the animal clade was probably a what Answer
Answer: choanoflagellate
12. from "how the squid lost its shell"- what was probably the
main selection pressure that resulted in fast-swimming ammonites
Answer Answer: large, fast predatory fish
13. a major change in the evolutionary lineage leading to the
chordates was the what Answer Answer: development of a dorsal hollow nerve cord
14. organisms of which group are probably most similar to
2/
15
Comprehensive Questions
with Verified Answers
Graded A+
1. what are the oldest diploblasts Answer Answer: ctenophores
2. why are lichens important Answer Answer: - as early species that help break down
rocks to form soil
-as bioindicators of air pollution
-as food for many species of wildlife
-as dyes for human yarn and cloth
3. a body of multicellular fungus is called a what Answer Answer:
mycelium
4. where to lichens get their energy Answer Answer: the sun
5. chytrid fungi Answer Answer: - have caused about 1/3 of amphibian species to decline
-have caused about 200 amphibian species to almost go extinct
-are found all around the
1/
15
, world range from parasitic to
saprophytic
6. the scavenger community of the african savanna includes Answer
Answer: - jackals
-hyenas
-vultures
7. what animal is a major recycler of organic matter in the African
savanna Answer Answer: dung beatles
8. the rigid exoskeleton of some ecdysozoans has protective and
supportive advantages, but it poses which problem? Answer Answer: the
exoskeleton cannot grow as the animals body grows
9. in the history of animals, which characteristics arose after the
cnidarians Answer Answer: three embryonic layers, bilateral symmetry
10. Toby Spribille and his colleagues at UM changed out
understanding of lichens by showing that Answer Answer: they can be
made up of several types of fungi
11. the ancestor of the animal clade was probably a what Answer
Answer: choanoflagellate
12. from "how the squid lost its shell"- what was probably the
main selection pressure that resulted in fast-swimming ammonites
Answer Answer: large, fast predatory fish
13. a major change in the evolutionary lineage leading to the
chordates was the what Answer Answer: development of a dorsal hollow nerve cord
14. organisms of which group are probably most similar to
2/
15
