BIOL 2251 EXAM 1 – Questions Answered With
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Terms in this set (25)
The class ______ contains Demospongiae
about 83% of all living
sponge species
Which of the following cells pinacocyte
is able to contract and and
protect sponges?
a) choanocyte
b) pinacocyte
c) archaeocyte
d) spicule
You are confronted with a morphological
box of preserved
grasshoppers of various
species that are new to
science and have not been
described. Your assignment
is to separate them into
species. There is no
accompanying information
as to where or when they
were collected. Which
species concept will you
have to use?
, Two species of frogs The postzygotic barrier called reduced hybrid viability
belonging to the same
genus occasionally mate,
but the offspring fail to
develop and hatch. What is
the mechanism for keeping
the two frog species
separate?
Put the following 3, 2, 1, 4
milestones in animal
evolution in order from
oldest to most recent:
1) origin of mammals
2) colonization of land by
animals
3) Ediacaran fauna
4) extinction of large, non
flying dinosaurs
Which of the following The mesoderm gives rise to the epidermis
statements about
diploblasts and triploblasts
is false?
a) the mesoderm gives rise
to the epidermis
b) the endoderm gives rise
to internal organs such as
liver and lungs
c) animals that display
radial symmetry are
diploblasts
d) animals that display
bilateral symmetry are
triploblasts
Expert Insights
Save
Terms in this set (25)
The class ______ contains Demospongiae
about 83% of all living
sponge species
Which of the following cells pinacocyte
is able to contract and and
protect sponges?
a) choanocyte
b) pinacocyte
c) archaeocyte
d) spicule
You are confronted with a morphological
box of preserved
grasshoppers of various
species that are new to
science and have not been
described. Your assignment
is to separate them into
species. There is no
accompanying information
as to where or when they
were collected. Which
species concept will you
have to use?
, Two species of frogs The postzygotic barrier called reduced hybrid viability
belonging to the same
genus occasionally mate,
but the offspring fail to
develop and hatch. What is
the mechanism for keeping
the two frog species
separate?
Put the following 3, 2, 1, 4
milestones in animal
evolution in order from
oldest to most recent:
1) origin of mammals
2) colonization of land by
animals
3) Ediacaran fauna
4) extinction of large, non
flying dinosaurs
Which of the following The mesoderm gives rise to the epidermis
statements about
diploblasts and triploblasts
is false?
a) the mesoderm gives rise
to the epidermis
b) the endoderm gives rise
to internal organs such as
liver and lungs
c) animals that display
radial symmetry are
diploblasts
d) animals that display
bilateral symmetry are
triploblasts
