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