1.
Which of these animals is a mammal?
Correct Answer
A. River Otter
Explanation
The River Otter is a mammal because it possesses all the characteristics of mammals. It has fur or hair, gives birth to live young, and nurses its young with milk produced by mammary glands.
2.
Which of the following is a mammal?
Correct Answer
A. Right Whale
Explanation
A right whale is a mammal because it possesses all the characteristics of mammals. Mammals are warm-blooded, have hair or fur, give birth to live young, and nurse their offspring with milk. Right whales are large marine mammals that belong to the family Balaenidae. They have a streamlined body, a baleen plate instead of teeth, and are known for their baleen feeding mechanism. Therefore, the right whale is the correct answer as it meets all the criteria of being a mammal.
3.
Which of these is a mammal?
Correct Answer
D. Rhinoceros
Explanation
The correct answer is Rhinoceros because it is a mammal. Mammals are a group of animals that have mammary glands, which produce milk to nourish their young. Rhinoceroses are large, herbivorous mammals that are characterized by their thick skin and one or two horns on their snouts. They belong to the order Perissodactyla, which also includes horses and tapirs. Unlike reptiles, such as alligators, and insects, such as praying mantises, mammals give birth to live young and have hair or fur covering their bodies.
4.
Which of these choices is a mammal?
Correct Answer
A. Reindeer
Explanation
Reindeer is a mammal because it is warm-blooded, has fur or hair, gives live birth to its young, and nurses them with milk. These characteristics are common to all mammals. Emu, Dragonfly, and Hammerhead Shark are not mammals because they do not possess all of these characteristics.
5.
Which of these choices is a mammal?
Correct Answer
D. Red Wolf
Explanation
The Red Wolf is a mammal because it belongs to the Canidae family, which includes mammals such as dogs, wolves, and foxes. Mammals are characterized by having mammary glands that produce milk to nourish their young, and the Red Wolf exhibits this trait. Additionally, mammals have hair or fur, give live birth, and are warm-blooded, all of which apply to the Red Wolf. Therefore, the Red Wolf is the correct choice as a mammal in this question.
6.
Which of these choices is a mammal?
Correct Answer
C. Red Panda
Explanation
The Red Panda is a mammal because it possesses all the defining characteristics of mammals. It has fur or hair, gives birth to live young, and produces milk to nourish its offspring. Additionally, Red Pandas have a warm-blooded metabolism and possess a unique skeletal structure common to mammals.
7.
Which of these choices is a mammal?
Correct Answer
D. Rat
Explanation
The correct answer is Rat because rats are mammals. Mammals are a group of animals that have mammary glands, which produce milk for their young. They also have hair or fur, are warm-blooded, and give birth to live young. Rats possess all of these characteristics, making them a mammal.
8.
Which of these choices is a mammal?
Correct Answer
D. Rabbit
Explanation
Rabbit is the correct answer because rabbits are mammals. Mammals are warm-blooded vertebrates that have hair or fur, give birth to live young, and nurse their babies with milk. Rabbits fit this description as they have fur, give birth to live young, and nurse their babies with milk. Yellow Jacket, Blue Jay, and Iguana are not mammals as they do not possess these characteristics.
9.
Which of these choices is a mammal?
Correct Answer
D. Prairie Dog
Explanation
A prairie dog is a mammal because it belongs to the order Rodentia, which includes mammals such as mice, rats, and squirrels. Mammals are characterized by having fur or hair, giving birth to live young, and producing milk to nourish their offspring. Prairie dogs fit all of these criteria, making them a mammal. Sea turtles, ostriches, and ring-billed gulls are not mammals; sea turtles are reptiles, ostriches are birds, and ring-billed gulls are also birds.
10.
Which one of these is a rodent?
Correct Answer
B. Porcupine
Explanation
A porcupine is a rodent because it belongs to the order Rodentia. It has characteristic rodent features such as continuously growing incisors and a diet primarily consisting of plant material. Porcupines are known for their sharp quills that cover their body as a defense mechanism. They are found in various parts of the world and are recognized for their unique appearance and behavior.
11.
Which of these choices is a mammal?
Correct Answer
A. Polar Bear
Explanation
A mammal is a type of animal that is characterized by having mammary glands, which produce milk for their young. Polar bears are mammals because they possess mammary glands and nurse their cubs with milk. Additionally, polar bears have other mammalian characteristics such as having hair or fur, being warm-blooded, and giving live birth. The other choices, American Tree Sparrow, Quail, and Hatchetfish, are not mammals. They are birds and fish, which do not possess mammary glands and do not nurse their young with milk.
12.
Which of these choices is a mammal?
Correct Answer
C. Panther
Explanation
The correct answer is Panther because a mammal is a warm-blooded vertebrate animal that has hair or fur, gives birth to live young, and feeds them with milk produced by mammary glands. Panthers, also known as black panthers, are large cats that belong to the family Felidae and meet all the criteria of being a mammal. They have fur, give birth to live young, and nurse their offspring with milk.