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100

When animals have a mouth that has jaws and teeth made for crushing and grinding food into small particles.  This process is called?

Mechanical digestion

100

An __________ digestive system has only a single opening for both taking in food and expelling wastes. 

Incomplete 

100

Animals that feed on plants are called _______

herbivores 

100

______ has lots of energy-rich sugars in them so many animals will eat them. 

Fruit 

100

During ______ the stomach and intestines use chemicals to break down food molecules into nutrients. 

Chemical digestion 

200

Some animals can get energy from eating wood.  Most of the time wood-eating animals are called?

Insects/Termites 

200

_______ are animals that get most of all of their energy and nutrients from eating other animals. 

Carnivores 

200

_______ _______ have structures that are designed to strain tiny algae, protist or other food items out of the water. 

Filter feeders 

200

______ cells absorb food particles from the water flowing through a sponge. 

Collar 

200

A _______ will eat both plant and animal matter. 

Omnivore 

300

_________ eat dead animals. 

Scavengers 

300

Riding the body of cell waste products is called?

Excretion 

300

Most animals have special organs that rid their body of cell waste.  They work together as a part of an ________ _________

Excretory system 

300

In vertebrates, blood travels through a ________ where wastes are filtered out. 

Kidney 

300

Getting rid of waste and carbon dioxide and transporting these things throughout their body is a process called?

Circulation 

400

When multiple organs work together to do the job of moving wastes and carbon dioxide it is called ________ _________

Circulatory system 
400

______ pump blood through the system. 

Heart 

400

Blood circulates through the animals body inside closed _______

Vessels 
400

Fish have two-chambered hearts and a _____ ______ pathway for blood. 

Single-cycle 

400

Respiration is the job of an animals _______ _______

Respiratory system 

500

Most insects have tiny openings along the sides of their bodies called?

Spiracles

500

Animals that spend some or all of their lives in water use _____ to exchange gases with their surroundings. 

Gills 

500

Apart from fish, most vertebrate animals respire using_____

Lungs 

500

Air enters the nose or mouth of an animals and passes to the lungs through the _____

Trachea 

500

The prefix hydro means?

Water