Biology U3 L09 Characteristics Of Arthropods

Front 1

Describe the pathway taken by the blood as it circulates through an arthropod's body.

Back 1

Blood is pumped by the heart through vessels. The blood flows out of the vessels, bathes the tissues of the body, and returns to the heart through open body spaces rather than through blood vessels

Front 2

Describe two features that are unique to arthropods.

Back 2

jointed appendages, segmented bodies, exoskeletons

Front 3

What are the advantages and disadvantages of an exoskeleton?

Back 3

An exoskeleton is advantageous because it protects against water loss and injury. Disadvantages include its weight and inflexibility

Front 4

How are compound eyes an adaptation to the way of life of some arthropods?

Back 4

Compound eyes can detect the movements of prey, mates, or predators. The total image formed is made up of thousands of parts

Front 5

What characteristics of arthropods might explain why they are the most successful animals in terms of population sizes and numbers of species?

Back 5

jointed appendages, exoskeletons, efficient gas exchange, wings in some, acute senses.

Front 6

Compare the adaptations for gas exchange in aquatic and land arthropods.

Back 6

Aquatic arthropods exchange gases through gills, which extract O2 from water and release CO2 into the water. Land arthropods have either tracheal tubes or book lungs. Tracheal tubes carry air throughout the body. Book lungs are chambers with leaflike plates for gas exchange.

Front 7

any structure, such as a leg or an antenna, that grows out of an animal's body

Back 7

appendage

Front 8

in arthropods, the periodic shedding of an old exoskelet

Back 8

molting

Front 9

structure in some arthropods formed by the fusion of the head and thorax.

Back 9

cephlathorax

Front 10

hollow passages in some arthropods that transport air throughout the body.

Back 10

tracheal tubes

Front 11

in arthropods, openings on the thorax and abdomen through which air enters and leaves the tracheal tubes.

Back 11

spiracles

Front 12

gas exchange system found in some arthropods where air-filled chambers have plates of folded membranes that increase the surface area of tissue exposed to the air.

Back 12

book lungs

Front 13

chemical signals given off by animals that signal animals to engage in specific behaviors.

Back 13

pheremones

Front 14

visual structure in arthropods that uses one lens to detect light and focus.

Back 14

simple eye

Front 15

in arthropods, a visual system composed of multiple lenses; each lens registers light from a small portion of the field of view, creating an image composed of thousands of parts.

Back 15

compound eye

Front 16

in most arthropods, mouthparts adapted for holding, chewing, sucking, or biting various foods.

Back 16

mandibles

Front 17

in arthropods, tubules located in the abdomen that are attached to and empty waste into the intestine.

Back 17

Malpighian tubules

Front 18

type of asexual reproduction in which a new individual develops from an unfertilized egg.

Back 18

parthenogenesis