Midterm online answers Flashcards
Which phylum would have no tissues?
sponges
A planarian is an example of a(n)
flatworm
What makes sponges different from other types of invertebrates?
they have no organs
Which of the following is characteristic of many arachnids?
they are poisonous
A grasshopper is an example of a(n)
arthropod
The head and thorax make up which part of a spider’s body?
cephalothorax
Which phylum are deuterostomes?
echinoderms
What is the hard structure that covers an arthropod’s body?
exoskeleton
What are the three main parts of an insect’s body?
head, thorax, abdomen
What do roundworms and segmented worms have in common?
they have simple digestive systems
Which type of invertebrate have shells and soft bodies?
mollusc
Where can you find arthropods?
land, water, and air
Which phylum exhibits bilateral symmetry?
flatworms
Which of the following is a characteristic of all invertebrates?
all invertebrates lack a backbone
Which of these is the largest group of invertebrates on Earth?
arthropods
Which of the following is a characteristic of most crustaceans?
they live in water
Why are sea stars classified as echinoderms?
because they have symmetric body parts and no organs
Which of the following is acoelomate?
flatworms
An octopus is an example of a(n)
mollusc
What is the purpose of a jellyfish’s tentacles?
to poison predators
A sea star is an example of a(n)
echinoderm
Which of the following is a characteristic of an arthropod?
they have an exoskeleton
Which of the following is NOT a characteristic of animals?
autotrophic
Bony fish are members of the class
Osteichthyes
Animals in the class __ spend part of their life on land and part of their life in water.
Amphibia
Sharks and rays are examples of animals in the class
Chondrichthyes
Animals in this class include the eagle, blue jay, and penguin.
Aves
Which of the following classes are endotherms?
Mammalia
The classes Agnatha, Chondrichthyes, and Osteichthyes have in common that they
are fish
Fish with a skeleton made of cartilage instead of bone are in the class
Chondrichthyes
Which of the following do NOT produce amniote eggs?
Amphibia
Animals in this class of have lungs to breathe on land and skin that does not need to be kept wet. They produce an amniote egg and have scales.
Reptilia
All mammals
all of these choices are correct
Which of the following are NOT members of the class reptilia?
al of these are repitles
Tuna, bass, and clown fish are examples of animals in the class
Osteichthyes
Animals in the class amphibia
lay their eggs in water or damp areas.
Animals in the class __ start life with gills, like fish, and later develop lungs to breathe air.
Amphibia
Jawless fishes that do not have scales belong to the class
Agnatha
Lampreys and hag fish are examples of animals in the class
Agnatha
Animals in this class include turtles, snakes, lizards, and alligators.
Reptilia
Which of the following concerning amniote eggs is true?
all of these are true
Salamanders and frogs are examples of animals in the class
Amphibia
Which of the following is an endotherm?
all of these are endoterms
What does “the fittest” mean in an evolutionary sense?
The most reproductively successful.
Which layer is the oldest?
D (The bottom)
_______________structures are derived from the same body part present in a common ancestor, although the structure and the function of the body part may have diverged.
Homologous
________________ is important to a population because it allows natural selection to occur.
Genetic variation
In a snowy habitat, a brown bunny is more likely to survive and reproduce than a white bunny rabbit.
False
What is evolution?
The process of change in living organisms over many generations and long periods of time.
Which lived more recently in time, the common ancestor species of A and B or the common ancestor
species of B and C?
common ancestor of B & C
What is an amniote?
vertebrate animals whose embryos develop inside the set of protective membranes
Which shows evidence of common descent?
homologous structures
For a mutation to affect evolution, it must:
Be able to get passed from parent or offspring
Which of the following is an example of homologous structure?
A bird’s wing and a horse’s foreleg
Which way does time run on this tree?
From root to branch tip
Which traits do B and C share?
1 and 3
A fossilized species that has characteristics of two distinctly different species is called a
transitional species
Which of the following provides evidence of evolution from a common ancestor? (select all that apply)
homologous structures, fossils , biochemical similarities
The Galápagos finches are an example of an array of species that:
Evolved from a single island species
The common bone of the upper forelimb in all vertebrates is the
humerus
How do organisms come to live on newly formed volcanic islands?
they are blown/washed over
Evolution is a change in the alleles in an individual organism.
False
What are the two key ingredients to natural selection?
Reproduction and variation
The body of a bryophyte is called a __.
thallus
Which of the following best describes this plant? (Moss)
Seedless, nonvascular
Spores of a bryophyte are housed within the __.
capsule
Bryophytes usually live in __ places.
moist
The spores of a fern are housed within the __.
sori/sorus
The two groups of plants that HAVE vascular tissue AND produce seeds are angiosperms and ferns.
False
What is one of these structures called and what does it produce?
sorus, spores
Flowering plants are also called __.
angiosperms
Gymnosperm means “naked seed”.
True
The heart shaped structure in the fern gametophyte generation is called a __.
prothallus
The antheridia is the female reproductive structure.
False
__ is found in the cell walls of plants.
cellulose
Which of the following evolved FIRST?
Bryophytes
The gametophyte generation in plants is haploid.
True
The dominant generation in mosses is the gametophyte generation.
True
A pine tree would be an example of a __.
gymnosperm
Which of the following is NOT true concerning plants?
prokaryotic
Which of the following best describes this plant? (Fern)
Seedless, vascular
A fern leaf is referred to as a __.
frond
