Ques and Ans: What part of a bird's body is generally adapted to the kind of food that they eat?
Options:
- (A) bill
- (B) skin
- (C) growth
- (D) sugar
- (E) fat
- (F) H 2 O
- (G) organ
- (H) muscle
(A)
Logic for the answer: Bird beaks are generally adapted for the food they eat. Birds have a beak or a bill. Bird bills are generally adapted for the food they eat.

Ques and Ans: What are endothermic vertebrates with legs?
Options:
- (A) Birds
- (B) mammals
- (C) Snakes
- (D) ducks
- (E) Lizards
- (F) ants
- (G) long
- (H) toads
(A)
Logic for the answer: Birds are endothermic tetrapod vertebrates. Legs define Tetrapods. Birds are endothermic vertebrates with legs.

Ques and Ans: How do dogs conserve body heat?
Options:
- (A) their blood cells
- (B) fur and fat
- (C) their nails
- (D) layers of fat
- (E) Exfoliation
- (F) sweating
- (G) their fur
- (H) their hair
(G)
Logic for the answer: Mammals conserve body heat with their hair or fur. Dogs, of course, are mammals. Dogs conserve body heat with their fur.

Ques and Ans: What has a circulatory system with a two-chambered heart?
Options:
- (A) sharks
- (B) insects
- (C) salmon
- (D) animals
- (E) barnacles
- (F) mammals
- (G) tortoises
- (H) alpacas
(C)
Logic for the answer:
Fish have a circulatory system with a two-chambered heart. Fish include bass and salmon. Salmon have a circulatory system with a two-chambered heart.