BIOLOGY CONNECT CHAPTER 34
EXAM QUESTIONS WITH VERIFIED
ANSWERS
Associate the following statements with the appropriate group of mammals.
(marsupials)
- posses a cloaca
-mammals that lay shelled eggs
- many species live in Australia or South America
- includes humans
- embryos use "short lived placentas
- embryos nourished by a "long-lived" placenta - Answer-- many species live in
Australia or South America
- embryos use "short lived placentas
Associate the following statements with the appropriate group of mammals.
(placentals)
- posses a cloaca
-mammals that lay shelled eggs
- many species live in Australia or South America
- includes humans
- embryos use "short lived placentas
- embryos nourished by a "long-lived" placenta - Answer-- includes humans
- embryos nourished by a "long-lived" placenta
A number of major evolutionary innovations arose in the fish lineage. Check all of the
evolutionary innovations associated with the fishes.
- Teeth arose from the rough scales of ancestral sharks.
- Skeletal developments leading to the amphibian movement onto land probably
evolved from lobe-finned fishes.
- Fish fins are ancestral (homologous) structures to the flippers (forelimbs) of turtles.
- The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
- The swim bladder ultimately led to the evolution of the amphibian urinary bladder. -
Answer-- Teeth arose from the rough scales of ancestral sharks.
- Skeletal developments leading to the amphibian movement onto land probably
evolved from lobe-finned fishes.
- The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
Because of their large ______, ancestral amphibians likely faced challenges
supporting themselves out of the aquatic environment. - Answer-body size
Although there was far ________oxygen available to gills in air than in water, the
delicate structure of gills couldn't be supported in the terrestrial environment. -
Answer-more
, The costs of locomotion on land and greater oxygen demand from enlarged muscles
led to modifications of the heart and ________ - Answer-circulatory system
These early amphibians could not venture too far away from water because
_______was restricted to moist environments. - Answer-egg deposition
There is a group of terrestrial salamanders called the lungless salamanders, which
do not have lungs. Based on what you know about amphibians in general, how
would you guess they are able to obtain oxygen?
a) They get air by pumping their operculum.
b) They use their gills.
c) They exchange gases across their moist skin.
d) The have a tracheal system for respiration. - Answer-c) They exchange gases
across their moist skin.
The chordates share several features which have played a significant role in the
evolution of the phylum. Check all of the features that one would use to exclusively
classify members of Chordata and not members of Echinodermata.
- a postanal tail during embryonic development
- pharyngeal pouches during embryonic development
- an endoskeleton
- a notochord on the dorsal side of the gut in the early embryo
- deuterostomic development of the embryo
- a hollow nerve cord - Answer-- a postanal tail during embryonic development
- pharyngeal pouches during embryonic development
- a notochord on the dorsal side of the gut in the early embryo
- a hollow nerve cord
Vertebrates are able to grow to relatively larger sizes than invertebrates because
a) vertebrates have an endoskeleton made of bone and cartilage.
b) vertebrates have an open circulatory system.
c) vertebrates do not undergo complete metamorphosis.
d) vertebrates evolved first and have had longer develop increased size. - Answer-a)
vertebrates have an endoskeleton made of bone and cartilage.
Which statement below best supports the idea that bony fish are capable of moving
through various depths of water without extra swimming effort?
a) Bony fish exchange gases between the digestive tract and the urinary bladder,
which gives the animal buoyancy in the water.
b) Bony fish exchange gases between the bloodstream and the swim bladder, which
gives the animal buoyancy in the water.
c) Bony fish exchange gases between the digestive tract and the swim bladder,
which gives the animal buoyancy in the water.
d) Bony fish exchange gases between the bloodstream and the urinary bladder,
which gives the animal buoyancy in the water. - Answer-b) Bony fish exchange
EXAM QUESTIONS WITH VERIFIED
ANSWERS
Associate the following statements with the appropriate group of mammals.
(marsupials)
- posses a cloaca
-mammals that lay shelled eggs
- many species live in Australia or South America
- includes humans
- embryos use "short lived placentas
- embryos nourished by a "long-lived" placenta - Answer-- many species live in
Australia or South America
- embryos use "short lived placentas
Associate the following statements with the appropriate group of mammals.
(placentals)
- posses a cloaca
-mammals that lay shelled eggs
- many species live in Australia or South America
- includes humans
- embryos use "short lived placentas
- embryos nourished by a "long-lived" placenta - Answer-- includes humans
- embryos nourished by a "long-lived" placenta
A number of major evolutionary innovations arose in the fish lineage. Check all of the
evolutionary innovations associated with the fishes.
- Teeth arose from the rough scales of ancestral sharks.
- Skeletal developments leading to the amphibian movement onto land probably
evolved from lobe-finned fishes.
- Fish fins are ancestral (homologous) structures to the flippers (forelimbs) of turtles.
- The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
- The swim bladder ultimately led to the evolution of the amphibian urinary bladder. -
Answer-- Teeth arose from the rough scales of ancestral sharks.
- Skeletal developments leading to the amphibian movement onto land probably
evolved from lobe-finned fishes.
- The anterior gill arch formed the basis for the evolution of the vertebrate jaw.
Because of their large ______, ancestral amphibians likely faced challenges
supporting themselves out of the aquatic environment. - Answer-body size
Although there was far ________oxygen available to gills in air than in water, the
delicate structure of gills couldn't be supported in the terrestrial environment. -
Answer-more
, The costs of locomotion on land and greater oxygen demand from enlarged muscles
led to modifications of the heart and ________ - Answer-circulatory system
These early amphibians could not venture too far away from water because
_______was restricted to moist environments. - Answer-egg deposition
There is a group of terrestrial salamanders called the lungless salamanders, which
do not have lungs. Based on what you know about amphibians in general, how
would you guess they are able to obtain oxygen?
a) They get air by pumping their operculum.
b) They use their gills.
c) They exchange gases across their moist skin.
d) The have a tracheal system for respiration. - Answer-c) They exchange gases
across their moist skin.
The chordates share several features which have played a significant role in the
evolution of the phylum. Check all of the features that one would use to exclusively
classify members of Chordata and not members of Echinodermata.
- a postanal tail during embryonic development
- pharyngeal pouches during embryonic development
- an endoskeleton
- a notochord on the dorsal side of the gut in the early embryo
- deuterostomic development of the embryo
- a hollow nerve cord - Answer-- a postanal tail during embryonic development
- pharyngeal pouches during embryonic development
- a notochord on the dorsal side of the gut in the early embryo
- a hollow nerve cord
Vertebrates are able to grow to relatively larger sizes than invertebrates because
a) vertebrates have an endoskeleton made of bone and cartilage.
b) vertebrates have an open circulatory system.
c) vertebrates do not undergo complete metamorphosis.
d) vertebrates evolved first and have had longer develop increased size. - Answer-a)
vertebrates have an endoskeleton made of bone and cartilage.
Which statement below best supports the idea that bony fish are capable of moving
through various depths of water without extra swimming effort?
a) Bony fish exchange gases between the digestive tract and the urinary bladder,
which gives the animal buoyancy in the water.
b) Bony fish exchange gases between the bloodstream and the swim bladder, which
gives the animal buoyancy in the water.
c) Bony fish exchange gases between the digestive tract and the swim bladder,
which gives the animal buoyancy in the water.
d) Bony fish exchange gases between the bloodstream and the urinary bladder,
which gives the animal buoyancy in the water. - Answer-b) Bony fish exchange
