Ch.28

Question 221 / 1 pts Which of the following is NOT a reason for the evolutionary success of insects?

Insects as a group are not very diverse because there are relatively few species.

Question 471 / 1 pts Living arthropods generally have fewer body segments than ancestral arthropods.

True

Question 551 / 1 pts When a honeybee performs the round dance, it indicates that a food source has a low energy value by changing direction less frequently than it would if the food were high quality.

True

Question 561 / 1 pts An adult starfish has radial symmetry.

True

Question 571 / 1 pts Echinoderms are animals in which the blastopore develops into an anus.

True

Question 51 / 1 pts Which of the following habitats do arthropods occupy?

all of the above

Question 341 / 1 pts Echinoderms are like vertebrates in that echinoderms

are deuterostomes.

Question 23 The compound eyes of insects

are made of many lenses.

Question 12 Arthropods are classified based on the number and structure of their

body segments and appendages.

Question 271 / 1 pts An example of an insect that undergoes incomplete metamorphosis is the

chinch bug.

Question 151 / 1 pts Insects are classified as

uniramians

Question 2 What substance found in the skeleton of a desert-dwelling beetle is likely to be absent from the skeleton of an aquatic beetle?

wax

Question 91 / 1 pts Which of these events is the first to happen when an arthropod molts?

Skin glands digest the inner part of the skeleton.

Question 491 / 1 pts The three major groups of arthropods are crustaceans, chelicerates, and uniramians.

True

Question 521 / 1 pts In a crayfish, the chelipeds have large claws. .

True

Question 591 / 1 pts When an echinoderm exerts a pulling force on an object, muscles pull the centers of the tube feet upward.

True

Question 41 / 1 pts Figure 28-1 The structures labeled X in Figure 28-1 are filled with

air

Question 181 / 1 pts The respiratory organ in terrestrial chelicerates is the

book lung.

Question 311 / 1 pts When a honeybee performs the waggle dance, the direction of the food is indicated by the

direction of the straight run.

Question 361 / 1 pts The skeleton of an echinoderm is an

endoskeleton made of calcium carbonate.

Question 7 The evolution of arthropods has led to

fewer body segments and more specialized appendages.

Question 331 / 1 pts In echinoderms, body parts usually occur in multiples of

five

Question 211 / 1 pts If a butterfly touches sugar water with one of its legs, it usually will begin to feed. If it touches salt water, it usually will not feed. The most likely explanation for this difference in response is that butterflies

have chemical receptors for taste on their legs.

Question 241 / 1 pts The body of an insect is divided into a

head, a thorax, and an abdomen.

Question 11 Which of the following invertebrates is NOT a crustacean?

horseshoe crab

Question 10 An arthropod is vulnerable to predators during the molting period because

its new exoskeleton is soft.

Question 11 / 1 pts The appendages of arthropods are

jointed and extend from the body wall.

Question 26 Which of the following is NOT a stage of complete metamorphosis?

nymph

Question 20 How many pairs of legs are there on most body segments of a centipede?

one

Question 291 / 1 pts In most ant societies, egg-laying is performed by

one queen.

Question 381 / 1 pts The water vascular system of echinoderms is involved with each of the following body functions EXCEPT

reproduction.

Question 281 / 1 pts One difference between a nymph and a larva is that a nymph

resembles an adult of the same species, but a larva does not.

Question 411 / 1 pts The echinoderms that look like warty, moving pickles are

sea cucumbers.

Question 431 / 1 pts The plates of the endoskeleton are reduced and contained inside a soft, muscular body wall in

sea cucumbers.

Question 451 / 1 pts In the Great Barrier Reef of Australia, extensive areas of coral have been destroyed by the crown of thorns, which is a type of

sea star.

Question 441 / 1 pts Two echinoderms that are in the same class are

sea urchins and sand dollars.

Question 251 / 1 pts An insect can detect minute movements in its environment by using its compound eyes and its

sensory hairs.

Question 141 / 1 pts An example of a chelicerate is a

spider.

Question 321 / 1 pts To determine whether an animal is a cnidarian or an echinoderm, you should

study its embryonic development.

Question 191 / 1 pts Spiders feed by

sucking up prey tissues that have been liquefied by enzymes.

Question 81 / 1 pts What does molting enable arthropods to do?

to grow

Question 3 Figure 28-1 shows the respiratory system of a grasshopper. The structures labeled X are called

tracheal tubes.

Question 351 / 1 pts In most species of echinoderms, respiration occurs mainly in the

tube feet.

Question 371 / 1 pts In an echinoderm, the structure that operates like a living suction cup is the

tube foot.

Question 461 / 1 pts One of the common features of arthropods is a tough endoskeleton.

False

Question 481 / 1 pts The process in which an arthropod sheds its skeleton and manufactures a larger one is called flexing.

False

Question 501 / 1 pts In a crayfish, the carapace is the part of the skeleton that covers the abdomen.

False

Question 511 / 1 pts If an arthropod has antennae and its body is divided into a cephalothorax and an abdomen, the arthropod is classified in the group called chelicerates.

False

Question 531 / 1 pts The mouthparts of insects consist of three pairs of appendages, including a pair of chelicerae.

False

Question 541 / 1 pts If an insect exists as a nymph before becoming an adult, the insect goes through complete metamorphosis.

False

Question 581 / 1 pts An echinoderm's water vascular system opens to the outside through the ring canal.

False

Question 391 / 1 pts Which of the following statements about the water vascular system of echinoderms is correct?

The ring canal connects to the madreporite.

Question 171 / 1 pts One similarity between a spider and a crayfish is that both animals have

a cephalothorax and an abdomen.

Question 301 / 1 pts Honeybees use dances to

convey information about food sources.

Question 161 / 1 pts The easiest way to tell whether an arthropod is an insect or a spider is to

count its legs.

Question 401 / 1 pts Which structure is part of an echinoderm's water vascular system?

madreporite

Question 421 / 1 pts Sea lilies and feather stars

make up the most ancient class of echinoderms.

Question 13 Which appendages are especially important in the classification of arthropods?

mandibles

Question 6 Typical primitive arthropods had bodies that were composed of

many segments.