Biology: The Dynamics of Life, California Edition

Section 1: Mammal Characteristics

Mammal Characteristics

1.
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This table provides data about digestive tract lengths, diet types, and animal masses for four mammals. Which statement is supported by this data?
A)Carnivores have shorter digestive tracts than herbivores.
B)Herbivores have short digestive tracts compared to carnivores.
C)The animal with the lightest mass has the longest digestive tract.
D)The longest digestive tract belongs to the animal with the greatest mass.
2.
Which of these is NOT an endothermic animal?
A)a robin
B)a lizard
C)a platypus
D)a giraffe
3.
Which specialized type of tooth do mammals use for puncturing flesh?
A)bicuspids
B)canines
C)molars
D)incisors
4.
Why do mammals need hair?
A)To conserve body heat.
B)To help capture prey.
C)To produce milk for their offspring.
D)To assist in fertilization.
5.
Which of these is a characteristic of mammals?
A)ability to produce milk
B)three-chambered hearts
C)feathers
D)ectotherms
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