Bio 1500
1. Lack of double fertilization in gymnosperms means that conifer seeds lack
a)
seed coats
b)
associated fruit
c)
endosperm
d)
an embryo
e)
,All of the above: c)endosperm
2. The evolution of four limbs was an important event in animal evolution. It
occurred along the branch labelled on the tree below.: 3
3. The evolution of jaws was also an important component of animal evolution.
It occurred along the branch labelled on the tree below.: 1
4. A long time ago, an ancient frog-like animal sitting on the edge of an island in
the middle of its pond is the most evolved kind of animal around at this point
in time. As it sits there, breathing the free air and contemplating life, it feels
trapped in its existence, and it would like to escape dependance on its pond. To
,do so this frog-like creature would need to:: Evolve independence from water for reproduction
5. While life on earth originated at least 3.5 billion years ago, more complex life
forms did not come into existence until much later, approximately 600 million
years ago. The most likely explanation for this late development of complex life
was that:: atmospheric oxygen levels were too low to support complex life forms
6. Fins in whales are homologous to limbs in reptiles.: true
7. The ability of vertebrates to become carnivores was made possible by the
modification of gill arches to become jaws early in their evolution.: true
, 8. Arthropods are the most abundant animals on the planet. This success is part-
ly due to their evolution of an exoskeleton made of chitin. This was important
because:: answer: All of the above,
Chitin is waterproof, slowing desiccation and allowing for use of terrestrial environments.
Chitin is strong, providing better protection against predators.
The strength of chitin allowed for the evolution of appendages that perform a diversity of tasks.
9. You are looking through tidal pools along the coast of California and you dis-
cover some unusual organisms attached to the rocks. These are multicellular,
heterotrophic, and have internal organs. Based on this you would conclude
that they are:: animals
10. Scientists adopted supergroups for classification of protists to better reflect
how they evolved.: true
1. Lack of double fertilization in gymnosperms means that conifer seeds lack
a)
seed coats
b)
associated fruit
c)
endosperm
d)
an embryo
e)
,All of the above: c)endosperm
2. The evolution of four limbs was an important event in animal evolution. It
occurred along the branch labelled on the tree below.: 3
3. The evolution of jaws was also an important component of animal evolution.
It occurred along the branch labelled on the tree below.: 1
4. A long time ago, an ancient frog-like animal sitting on the edge of an island in
the middle of its pond is the most evolved kind of animal around at this point
in time. As it sits there, breathing the free air and contemplating life, it feels
trapped in its existence, and it would like to escape dependance on its pond. To
,do so this frog-like creature would need to:: Evolve independence from water for reproduction
5. While life on earth originated at least 3.5 billion years ago, more complex life
forms did not come into existence until much later, approximately 600 million
years ago. The most likely explanation for this late development of complex life
was that:: atmospheric oxygen levels were too low to support complex life forms
6. Fins in whales are homologous to limbs in reptiles.: true
7. The ability of vertebrates to become carnivores was made possible by the
modification of gill arches to become jaws early in their evolution.: true
, 8. Arthropods are the most abundant animals on the planet. This success is part-
ly due to their evolution of an exoskeleton made of chitin. This was important
because:: answer: All of the above,
Chitin is waterproof, slowing desiccation and allowing for use of terrestrial environments.
Chitin is strong, providing better protection against predators.
The strength of chitin allowed for the evolution of appendages that perform a diversity of tasks.
9. You are looking through tidal pools along the coast of California and you dis-
cover some unusual organisms attached to the rocks. These are multicellular,
heterotrophic, and have internal organs. Based on this you would conclude
that they are:: animals
10. Scientists adopted supergroups for classification of protists to better reflect
how they evolved.: true
