Which of the following does not describe a primary function of hair?
sensory device
insulation
movement
waterproofing
Animals that feed on both plants and other animals are called ____.
omnivores
insectivores
herbivores
carnivores
Beavers and squirrels are in the order ____, which are known for gnawing with sharp incisors.
Rodentia
Xenarthra
Carnivora
Lagomorpha
What are the two distinguishing characteristics of mammals?
digestive system and sexual reproduction
segments and radial symmetry
hair and mammary glands
heterotrophic and digestive system
Which of the following is not a beneficial result of a highly developed cerebral cortex?
mice remembering layout of habitat
squirrels' balance and coordination
mother tiger teaching young to hunt
mother fox teaching young survival skills
What term refers to the internal production of body heat?
endothermy
signaling
trophism
ruminant
Which of the following is not a subgroup of mammals?
marsupials
placental mammals
monotremes
chiroptera
Mammals that reproduce by laying eggs are called ____.
marsupials
placental mammals
monotremes
shrews
Pouched mammals whose offspring have a very short development in the uterus are called ____.
placental mammals
rodentia
monotremes
marsupials
A (an) ____ is an environmental change that directly influences the activity of an organism.
innate response
stimulus
behavior
fixed action pattern
What type of conditioning occurs when dogs associate the sound of a bell with the unrelated stimulus of food?
operant
fixed
classical
innate
Which of the following is an example of habituation?
Baby birds stop responding to falling leaves.
A mouse runs away from a hawk.
Baby birds respond to their mother every time.
A hawk pursues a mouse.
An animal that solves a problem is engaging in what type of behavior?
Conditioning
Imprinting
Cognitive behavior
Fixed action pattern
A (an) ____ is a grouping in which animals are naturally ranked from highest to lowest.
agonistic system
resource hierarchy
dominance hierarchy
foraging system
Which of these is not an advantage of competitive behavior?
Winner can court a female without interference.
It assures reproduction of the stronger individual
It assures reproduction of the weaker individual.
Dominance usually established without the death of an individual.
Combative interaction between two animals of the same species is called ____.
classical conditioning
territorial behavior
dominance
agonistic behavior
What theory may explain some kinds of altruistic behaviors?
operant conditioning
dominance hierarchy
kin selection
biological rhythms
What kind of behavior is being displayed when wolves howl?
auditory communication
pheromone communication
kin selection
agonistic behavior
Which behavior is directly related to reproductive success within a species?
Courting
Altruism
Foraging
Migration
What behavior is linked with pheromones?
Agonistic
Communication
Migration
Nurturing
Which is an example of a circadian rhythm?
Reproductive cycle
Hibernation
Sleep/wake cycle
Migration
Ensuring that offspring have a increased chance of survival is an example of which type of behavior?
Territorial
Agonistic
Migration
Nurturing
The hair of a mammal is made of _____.
cellulose
keratin
chitin
chlorophyll
Which structure provides food and oxygen and removes wastes from developing young?
mammary glands
uterus
diaphragm
placenta
Which of the following can biologists learn about mammals from studying their teeth?
possible diets of different groups of mammals
similarities between mammals and other vertebrates
habitats occupied by different mammal groups
defense behaviors of specific mammal species
Which body structure allows mammals to control body fluids and adapt to dry desert conditions?
intestines
salivary glands
kidneys
stomach
Behaviors that are genetically based and not linked to past experiences are called ____.
response
innate
learned
copied
Animals associate stimuli with a reward or punishment during ____.
reflex response
operant conditioning
classical conditioning
imprinting
Which is an example of a behavior?
a dog avoiding a foul odor
tree branches providing shade
a rabbit’s fur turning white
blood flowing through veins
Which behavior usually is concerned with finding and eating food?
Nurturing
Foraging
Courting
Migration