1. Which of the following is not a characteristic of chordates
   

APost-anal tail

BDorsal hollow nerve cord

CSpinal column

DNotochord

1. In order for the exchange of oxygen and carbon dioxide to occur, an animal’s respiratory surfaces must remain
   

Acold c. hot

Bdry d. moist

1. A bird’s instinct to fly south for the winter is an example of which type of behavior
   

ALearned behavior

BHabituation

CObservant conditioning

DInnate behavior

1. Echinoderms are most closely related to chordates because both are
   

AProtostomes

BDeuterostomes

CEndotherms

DEctotherms

1. What advantage do forward facing eyes provide primates
   

AThe ability to form extended social groups

BThe ability to judge the distance of branches

CThe ability to manipulate tools

DThe ability to find mates easier

1. What type of symmetry does the animal in the figure display
   

AAsymmetrical c. radial

BBilateral d. multi-symmetry

1. The ability for animals to reproduce on land was primarily due to
   

ALungs c. 4 limbs

BEndothermy d. amniotic eggs

1. Cephalization allows animals to
   

AGain information about their environment

BEscape from predators

CAttract mates

DIncreases the production of offspring

1. Termites can often be found with protists in their gut. The protists aid in the digestion of cellulose, which is found in the wood termites eat. What type of relationship is this
   

AParasite c. mutualism

BCommensalism d. cohabitation

1. Which is true about gas exchange in respiratory systems
   

AGases diffuse from areas of low concentration to areas of high concentration

BGases diffuse from areas of high concentration to areas of low concentration

CGases diffuse equally in most situations

DConcentration has no effect on gas diffusion

1. When you use your knowledge and experience to figure out an error message on your computer, you are using
   

AClassical conditioning c. innate behavior

BInsight learning d. trial-and error learning

1. Which of the following types of cells produce a muscle contraction
   

ASensory neuron

BInterneuron

CMotor neuron

DAll neurons can stimulate muscle contraction

1. What is the function of the excretory system
   

ATo supply cells with oxygen and nutrients

BTo rid the body of metabolic wastes

CThe exchange oxygen and carbon dioxide with the environment

DTo break down food

1. Examining the teeth of an animal can give you information about whether it
   

APractices intracellular or extracellular digestion

BIs a filter feeder or a detritivore

CIs a nutritional symbiont

DIs a herbivore or carnivore