UMKC Bio 109 Quiz 1 Questions With Complete Solutions
A _________ is a reproductive structure of fungi that develops
from a mycelium.
A. lichen
B. mycorrhiza
C. fruiting body
D. saprobe
E. haustoria Correct Answer C. fruiting body
A species of aquatic invertebrate is discovered anchored by a
stalk to its substrate. In addition to the stalk, the animal also has
two shells of calcium carbonate and a horseshoe-shaped crown
of ciliated tentacles that surround the mouth, which obviously
functions as a filter-feeding device. As an informed Bio 109
student you would predict that this animal is a(n):
A. Brachiopod
B. Mollusk
C. Echinoderm
D. Arthropod
E. Cnidarian Correct Answer A. Brachiopod
A student finds an organism in a pond and thinks it is a
freshwater sponge. Another student thinks it looks more like an
aquatic fungus. How can they decide whether it is an animal or a
fungus?
A. See if it reproduces sexually.
B. Determine whether it is unicellular or multicellular.
C. Look for cell walls under a microscope.
D. See if it is a eukaryote or prokaryote.
, E. Figure out whether it is autotrophic or heterotrophic. Correct
Answer C. Look for cell walls under a microscope.
A wave of animal diversification occurred 535-525 million years
ago that has been referred to as the Cambrian explosion. Several
ideas have been put forward to explain this (in evolutionary
terms) rapid period of diversification. Choose two such ideas
and discuss how they may have contributed to the observed
diversification. Correct Answer Ecological Causes, Geologic
Causes, Genetic Causes
All of the following can be observed in the phylum Annelida
except:
A. a gastrovascular cavity with a single opening.
B. a well-developed coelom.
C. a ventral nerve cord.
D. a closed circulatory system.
segmentation. Correct Answer A. a gastrovascular cavity with
a single opening.
At which developmental stage should one be able to first
distinguish a diploblastic embryo from a triploblastic embryo?
A. fertilization
B. cleavage
C. gastrulation
D. coelom formation
E. metamorphosis Correct Answer C. gastrulation
If a species is bilaterally symmetrical, you would expect that
species to show all of the following traits except:
A. having a left side and a right side of the body.
A _________ is a reproductive structure of fungi that develops
from a mycelium.
A. lichen
B. mycorrhiza
C. fruiting body
D. saprobe
E. haustoria Correct Answer C. fruiting body
A species of aquatic invertebrate is discovered anchored by a
stalk to its substrate. In addition to the stalk, the animal also has
two shells of calcium carbonate and a horseshoe-shaped crown
of ciliated tentacles that surround the mouth, which obviously
functions as a filter-feeding device. As an informed Bio 109
student you would predict that this animal is a(n):
A. Brachiopod
B. Mollusk
C. Echinoderm
D. Arthropod
E. Cnidarian Correct Answer A. Brachiopod
A student finds an organism in a pond and thinks it is a
freshwater sponge. Another student thinks it looks more like an
aquatic fungus. How can they decide whether it is an animal or a
fungus?
A. See if it reproduces sexually.
B. Determine whether it is unicellular or multicellular.
C. Look for cell walls under a microscope.
D. See if it is a eukaryote or prokaryote.
, E. Figure out whether it is autotrophic or heterotrophic. Correct
Answer C. Look for cell walls under a microscope.
A wave of animal diversification occurred 535-525 million years
ago that has been referred to as the Cambrian explosion. Several
ideas have been put forward to explain this (in evolutionary
terms) rapid period of diversification. Choose two such ideas
and discuss how they may have contributed to the observed
diversification. Correct Answer Ecological Causes, Geologic
Causes, Genetic Causes
All of the following can be observed in the phylum Annelida
except:
A. a gastrovascular cavity with a single opening.
B. a well-developed coelom.
C. a ventral nerve cord.
D. a closed circulatory system.
segmentation. Correct Answer A. a gastrovascular cavity with
a single opening.
At which developmental stage should one be able to first
distinguish a diploblastic embryo from a triploblastic embryo?
A. fertilization
B. cleavage
C. gastrulation
D. coelom formation
E. metamorphosis Correct Answer C. gastrulation
If a species is bilaterally symmetrical, you would expect that
species to show all of the following traits except:
A. having a left side and a right side of the body.
