Amphibians (L.3)

Question 1

Tetrapod

Answer 1

a four-footed animal

Question 2

Metamorphosis

Answer 2

process of transformation from an immature form to an adult form in two or more distinct stages

Question 3

Tadpole

Answer 3

Immature amphibian such as a frog

Question 4

Lungs

Answer 4

Organs specialized for gas exchange in air

Question 5

Atria

Answer 5

each of the two upper cavities of the heart from which blood is passed to ventricles. right atrium receives deoxygenated blood; the left atrium receives oxygenated blood

Question 6

Vascularized

Answer 6

Having blood vessels associated with it

Question 7

Yolk sac

Answer 7

membranous sac attached to an embryo

Question 8

Autodigestion

Answer 8

“Self-digestion”

Question 9

Cloaca

Answer 9

Opening at posterior end of vertebrates other than mammals where ends of excretory, digestive and reproductive systems are located

Question 10

Gullet

Answer 10

Opening to esophagus

Question 11

Glottis

Answer 11

Opening to trachea (windpipe)

Question 12

Ammonia

Answer 12

gas made of nitrogen and hydrogen

Question 13

Urea

Answer 13

final nitrogenous excretion product of many organisms

Question 14

Nictitating membrane

Answer 14

Transparent eyelid which protects eyes under water and stops them from drying out

Question 15

Eustachian tubes

Answer 15

Canal that interconnects the middle ear with the oral cavity (used to prevent deformation of the eardrum)

Question 16

Ectotherms

Answer 16

Organism that relies on the environmental temperature to regulate its own body temperature