which of the following best defines the difference between internal and external fertilization

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Science C13 test2

Question	Answer
which animal behavior attracts mates by competing with members of the same species	courtship
service dogs have been trained to open doors for disabled people. this type of behavior is	trial and error
which of the following best defines the difference between internal and external fertilization	internal fertilization occurs inside the female's body while external fertilization occurs outside the female's body
once a newborn duckling hatches from its egg, it instinctively follows its mother around. this type of behavior is	imprinting
animals like some snakes, insects, and fish develop inside eggs and use the ___ as a source of nutrition rather than their mother	yolk
wolves us body language to communicate to other wolves within their society. when the wolf has its ears forward, narrowed eyes, and its body upright it is using body language to convey	aggression
length of gestation time is correlated to the average weight of the newborn. using the chart which animal would have the shortest gestation time	guinea pig
frogs use ____ fertilization where sperm combines with the egg soon after they leave the female's body	external
which reproductive organ can be found inside the female's body	ovary
scientists believe that almost 90 percent off fish found in the deep ocean use ___ to attract mates and lure prey	bioluminescence
all of the following are ways animals mark their territory except	using bioluminescence
societies use ___ as an organization of social status	dominance
female gypsy moths release chemicals called ___ to attract males	pheromones
a ____ is a group of animals of the same species living and working together in an organized way	society
a ___ is an automatic response that does not involve the brain	reflex
baby sea turtles head straight for the water as soon as they hatch. this is an example of ___ behavior	innate
learned behavior includes imprinting trial and error conditioning and	insight
sexual reproduction happens when the ___ material from two different sex cells combine	genetic
an animal in society with a lower relative status is said to be ___ to the dominant animal	submisive
a butterfly goes through ____, changing the body forms as it goes through its phases of development	metamorphosis
a sperm cell combines with an egg to form a new cell called a	zygote
the fight-or-flight response some animals have when encountering danger is a response to	stress

Created by: laneharvey

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