Biology 2 Exam 4
what arthropod lacks antennas?
chelicerata
which class of echinoderms is considered to be the oldest
crinoidea
a nauplius larva is characteristics of
crustaceans
what arthropod has two antennas?
crustaceans
echinoderms are related to chordates because of the first opening to develop becomes the mouth
false
nematode has an exoskeleton made of chitin
false
nematodes are exclusively aquatic
false
the chordate nerve cord is hollow and located ventrally
false
segmentation in arthropods differs from that of annelids because arthropod segments are
more specialized
sea stars eat
mostly crustaceans and mollusks.
which of the following is not characteristic of (most) deuterostomes?
mouth develops from the blastospore
Birds are most closely related to:
reptiles
which of the following are sluggish creatures that live on the sea bottom, and are considered the vacuum cleaner of the ocean bottom?
sea cucumbers
which of the following are carnivorous predators and scavengers
sea stars
which arthropod has chelicerae, pedipalps, and silk glands?
spider
the organism is the accompanying figure is representative of the
subphylmum cephaclochordata
gas exchange in terrestrial insects is accomplished through
the use of tracheae
which of the following are exclusively terrestrial?
chilopods and diplopods
an exoskeleton is a characteristic of an echinoderm
false
echinoderms are characterized by bilateral symmetry in adults and radial symmetry in juveniles
false
lancelets are
filter feeders
crustaceans are likely the first animals that conquered the land
false
deuterostomes are characterized by spiral cleavage
false
which of the following is not an adaptation that contributes to the biological success of insects
high intraspecific competition
all echinoderms are found
in marine habitats
Echinoderms' radial symmetry enables which of the following?
the ability to respond effectively in every direction of their surrounding environment
the tetrapods include
amphibians, reptiles, birds, mammals
what arthropod has one antenna only
insecta
which class of animals has the largest number of species?
insecta
which of the following embryonic cells are unique to vertebrates
neural crest cells
which characteristic best describes vertebrates?
vertebral column
You have a sample of cat emesis (vomit) and find worms in the sample. The cylindrical worms are long and slender, pointed at each end, with no other distinguishing characteristics. They are members of the phylum:
nematoda
larval tunicates superficially resemble which of the following
tadpoles
Members of the Ecdysozoa clade are characterized by having a cuticle.
true
Identify and briefly explain three adaptations of flowering plants that contributed to their evolutionary expansion and success.
The adaptation of seeds, fruits, and endosperm increases the likelihood of reproductive success. Coevolution with pollinators increases cross-pollination and promotes genetic variation. The adaptation of vascular systems with vessel elements and sieve tube elements increases efficiency. Lastly, leaf, stem, and root adaptations allow plants to live in a variety of habitats.
What is the economic importance of fungi? Name at least 10 products made utilizing fungi.
The economic importance of fungi is that they are powerful digestive enzymes that decompose wastes and dead organisms. These digestive enzymes can also be used to reduce wood, fiber, and food. Fungi are also economically important because they provide food and also contribute to medicine. Ten products made utilizing fungi are wine, beer, cheese, coffee, soy sauce, bread, chocolate, pickles, miso, and antibiotics.
which of the following statements about arthropods is false?
arthropods have an open circulatory system
sea stars are primarily
carnivores
echinoderms are unique because
their larvae are bilaterally symmetrical while the adult is pentaradially symmetrical
One member of subphylum Chelicerata is a spider.
true
The chordate notochord is a dorsal longitudinal rod composed of cartilage.
true
in insects, the head and thorax are fused in cephalothorax
true
malpighian tubules are used for excretion
true
members of phylum arthropods have paired, joined appendages
true
nematodes are not segmented
true
spiders and ticks are belonging to the sam subphylum
true
the exoskeleton of arthropods is made of calcium carbonate
true
the most closely related animal to vertebrates are the
urochordates
the most unique feature of the echinoderms is their
water vascular system
which is a unique adaptation in insects not found in any other arthropod?
wings
