Section 18.5-- Other Amphibians

Question 1

the order Caudata includes

Answer 1

salamanders, newts, sirens

Question 2

the gelatinous structure in which a male salamander deposits his sperm

Answer 2

spermatophore

Question 3

salamanders have __________________ fertilization

Answer 3

internal

Question 4

most salamander larvae undergo_______________, but their structural change is considerable less noticeable than that of frogs and toads

Answer 4

metamorphosis

Question 5

a condition in which a few species of salamanders never metamorphose but remain in the water as permanent larvae; they retain gills and other larval characteristics even after they become sexually mature

Answer 5

pedomorphosis

Question 6

many adult salamanders have neither _____________ nor _________q

Answer 6

lungs nor gills

Question 7

in lungless salamanders, _________________ respiration is supplemented by _______________ respiration as air is pumped in and out of the oral cavity

Answer 7

cutaneous
buccal

Question 8

the smallest of the three orders of amphibians

Answer 8

caecilians

Question 9

the largest living amphibian

Answer 9

giant salamander

Question 10

eel-like amphibians that are characterized by a long, slender body, no hind limbs, and small forelimbs

Answer 10

sirens

Question 11

caecilians are rarely seen by man because

Answer 11

most species are strictly underground creatures

Question 12

this feature of the skin distinguishes caecilians from other amphibians

Answer 12

tiny scales imbedded in the folds of their skin