A
Regardless of their environments, all animals have the same basic needs—______ _______ and _______.
food, water, and oxygen.
Many aquatic animals remove liquid wastes using__________.
kidneys
Waste materials are removed from the body during the process of__________.
excretion
Most animals do not have backbones and are called___________.
invertebrates.
Solid wastes leave an animal’s body in the form of____________.
feces
Open and closed circulatory systems use _________ to help blood move
muscles
Animals have different __________ with similar functions that help them survive in different habitats.
structures
You often can tell what type of diet an animal eats by looking at the structures that it has for_________.
feeding
__________ involves taking in water with food, pushing the water out through a filtering structure, and then eating the organisms that remain.
Filter feeding
_________ surrounding the coelom push the fluid in different directions.
Muscles
Structures in animal bodies transport oxygen and _________ to cells and help remove ________ such as carbon dioxide from the body
nutrients, wastes
Some animals can________ or move through the air without flapping their limbs.
glide
Animals have control systems, called _______ ______, that help them move, find food, and protect them from harm.
nervous systems
Animals have different structures for support, control, and____________.
movement.
Most animals that live in the water have ______ for gas exchange.
gills
A(n) ___________ is a netlike control system that sends signals to and from all parts of the body
nerve net
Some animals, such as those without legs, move in a wavelike motion called ____________.
undulation.
A(n) ___________is a fluid-filled internal cavity, called a(n) coelom, that is surrounded by muscle tissue.
hydrostatic skeleton
_________ are surrounded by capillaries, which help transport oxygen and carbon dioxide to and from cells.
Gills
In animals that have closed circulatory systems, nutrients from the intestines are absorbed by___________.
capillaries.
__________ are chemicals in digestive systems that help break food into small parts so cells can absorb the nutrients.
Enzymes
______________ animals also have kidneys, but they excrete less water than aquatic animals excrete when they remove wastes.
Terrestrial
How quickly blood moves through an animal often depends on what type of ________ __________ it has.
circulatory system
Birds conserve water by excreting _________ instead of ammonia or urea.
uric acid
Some animals, particularly insects, have specialized ___________ for eating.
mouthparts