Vocabulary
An animal that eats plants.
Herbivore
Animals that only eat meat.
Carnivore
What does circulatory mean?
flowing in a circle
What organ is used to excrete, get rid of, urine from the body?
kidney
The circulatory system carries chemical signals known as what?
hormones
The largest part of your brain that controls thought, memory, learning, feeling, and body movements.
Cerebrum
Whales get food by doing what?
Filter feeding
This system transports oxygen from their gills or lungs to the rest of the body.
circulatory system
Get rid of wastes or substances that are not needed.
excrete
This system carries messages directly to parts of the body, and help control movement and feeling.
Nervous system
This part of animals (not humans) that grinds food into a watery paste.
gizzard
The process of breaking down food into small chemicals.
digestion
Chambers in the heart that receive blood.
Atria
Flatworms remove excess water through a system of tubes that are connected to what?
flame cells
The nervous system is divided into 2 parts. Which part has the brain and spinal cord?
Central nervous system
A chamber that pumps blood out of a vertebrate's heart.
ventricle
Animals break down food by secreting what kind of enzymes?
digestive enzymes
Arthropods and most mollusks have what kind of circulatory system?
Open circulatory system
removes dangerous wastes
A message that a nerve cell carries
impulse
A digestive space with a single opening.
Gastrovascular cavity
A tubelike digestive space with an opening at each end.
digestive tract
In the heart of a bird or mammal, blood goes from the left atrium to where?
left ventricle
This is a dangerous waste and is poisonous to cells.
Ammonia
Which part of the nervous system sends messages between other body parts?
peripheral nervous system