BIO 104 Exam 2

Lancelets are:

Filter Feeders

Placoid scales are found on:

Cartilage fish

After embryonic development, members of the phylum Rotifera are incapable of:

Cell division

An elongate uniramid with many legs as well as poison claws is known as a(n):

Centipedes

A fish with a cartilaginous skeleton and paired fins would be in the group:

Chondrichthyans

Salamanders are members of the order:

Chordate

From an evolutionary perspective, true nerve cells are first seen in the phylum:

Cnidarians

Within the chordate classes, the unique characteristic of the class Aves is:

Feathers

Refer to the accompanying figure. What is the structure labeled as 9?

Feeding Polyp

What is the mode of nutrition for clams and oysters?

Filter feeders

What is a difference between flatworms and nemerteans?

Flatworm larvae burrow into skin but nemerteans have to be ingested

Ctenophores capture food:

Glue cells

Which of the following is NOT an adaptation that contributes to the biological success of insects

High intraspecific competition

Which of the mollusks have a closed circulatory system?

Squid

What specialized structure do crustaceans use to sense gravity?

Staisus

Cnidocytes contain?

Stinging organelles

What is the mode of nutrition for most Poriferans?

Suspension/Filter feeders

Which structure is used to help regulate buoyancy of fish?

Swim bladder

Which of the following are carnivorous predators and scavengers?

Sea stars

Which is critical to polychaete and oligochaete locomotion?

Setae

What is associated with the evolution of the coelom?

Two body plan

Which of the following is NOT an example of a cnidarian?

Sponges

Sponges are believed to have arisen from the choanoflagellates because they possess:

Collar Cells

The veliger larval form is unique to:

Mollusks

Trochophore larvae are characteristic of?

Mollusks

Sea stars are primarily:

Carnivores

Which class of echinoderms has the greatest species diversity?

Ophiuroidea

Birds are most closely related to:

Reptiles

Which arthropod has chelicerae, pedipalps, and silk glands?

Spiders

Which characteristic best describes vertebrates?

A backbone

Name something associated with mollusks?

A mantle

Echinoderms are unique because:

Adults have pantadradius Symmetry

Metamorphosis occurs in which of the following vertebrate classes?

Amphibians

Hagfishes are differentiated from lampreys and all other fishes in that:

Backbone

Which are living descendants of the dinosaurs?

Birds

Lungs first evolved in which group?

Bony fish

Which chordate group has the most species?

Bony fish

The first function of feathers was most likely:

Courtship rituals

A nauplius larva is characteristic of:

Crustaceans

Sea stars eat:

Crustaceans

Which arthropods have mandibles, gills, excretory glands, and statocysts?

Crustaceans

Which of the following is NOT characteristic of (most) deuterostomes?

Determinate cleavage

The earliest mammals resembled small:

Dogs

Tribolites were?

Early arthropods

Which of the following animals helps to maintain fertile soil?

Earthworms

What is the correct sequence of complete metamorphosis of an insect?

Egg, larvae, pupa, adult

The Portuguese man of-war is a colony of hundreds to thousands of:

Hydrozoans

The body wall of cnidarians and ctenophores consist of:

Inner and outer cell area

Which class of animals has the largest number of species?

Insects

Where does digestion in a sponge takes place?

Inside the cell.

The phylum name Arthropoda refers to:

Jointed appendages

The nervous system of many species of flatworms

Ladder like

The monotremes are an unusual group of mammals because they:

Laid eggs

Sharks detect motion in the water or waves by their:

Lateral Lines

Which of the following species has been used for centuries to draw blood from areas swollen by poisonous stings and bites?

Leeches

Snakes are most closely related to:

Lizards

The tetrapods include:

Mammals, reptiles, amphibians

What is a characteristic of insects?

Mandible

Segmentation is important in annelids as an aid in:

Movement

In cnidarians, nematocysts are housed within why type of specialized cell?

Natocycts

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. You conclude they are members of which phylum?

Nematodes

Which of the following embryonic cells are unique to vertebrates?

Neural Crest cells

All echinoderms are found:

Ocean

Most mollusks are:

Ocean

Marsupials include the:

Opossum

Extinct jawless fish include the:

Ostracoderm

Which term describes an animal that lays eggs?

Oviparous

Which term can be applied to both monotremes and sharks?

Oviperous

Which of the following are sluggish creatures that live on the sea bottom, and commonly eject organs when conditions are poor?

Sea Cucumbers

Which are the animals with a crown of cilia that look like a spinning wheel?

Phylum Rotifera

An animal found in the rocky intertidal zone has eight overlapping plates and is tightly adhering to the rock with a muscular foot. This animal is most likely a member of the class:

Poly Placafora

Collar cells are characteristic of?

Porifera

Which structure do numerous mollusks use to scrape algae off rocks?

Radula

Refer to the accompanying figure. Asexual reproduction is occurring at which point?

Reproductive polyp

In which group did the amniotic egg first evolve?

Reptiles

The amphibians are believed to have arisen from ancestral:

Sacropterygian

Which of the following is a marine species that is segmented and has many setae, a well-developed head, separate sexes, and trochophore larva

Sandworms and tubeworms

The anterior end of a tapeworm is known as the:

Scolus

Which of the following groups use very long pedipalps as pinchers for capturing prey

Scorpions

Within the phylum Cnidaria, corals are most closely related to which organism?

Sea Anenomes

Echinoderms' radial symmetry enables which of the following?

The ability to respond effectively in every direction of their surrounding environment

Which of the following is NOT a correct statement regarding collar cells?

The collar cell is an extension of the cell wall and consists of microvilli.

One characteristic of class Bivalvia is that they

The have two shells with a hinge joint

Which of the following is characteristic of flatworms?

They are acoelomate (have no body cavity).

Which of the following is NOT a correct statement regarding ctenophores

They are distinct from the species known as comb jelly.

How do leeches differ from other annelids?

They do not have setae or parapodia

Which of the following is a correct statement regarding cnidarians?

They have a nerve net

Which of the following is characteristic of nemerteans

They have no heart.

Which of the following is NOT characteristic of cnidarians?

They have one body shape, known as medusa.

Gas exchange in terrestrial insects is accomplished through:

Trachea

The most closely related animal to vertebrates are the:

Urochordates

The most unique feature of the echinoderms is their:

Water vascular system

'Which of the following are the largest living vertebrates?Which of the following embryonic cells are unique to vertebrates?

Whales

Which is a characteristic of all annelids?

complete digestive system, bilateral symmetry, and a segmented body

Which of the following terms is associated with polychaetes

parapodia

Which of the following is an adaptation that enables cephalopods to escape from their predators

rapidly changing colors