Lesson 1
A fluid filled cavity is called a
Coelom
The movement of substances from an area of higher concentration to an area of lower concentration
Diffusion
The bone structure for feeding used for chewing food
Teeth
What term best describes a protective structure found on the outside of certain organisms?
a. endoskeleton
b. exoskeleton
c. cartilage skeletion
d. hydrostatic skeletion
b: Exoskeleton
What is the major difference between an open circulatory system and a closed circulatory system?
CCS uses blood vessels to transport blood
A fluid filled internal cavity surrounded by muscle tissue is called a
Hydrostatic skeleton
an aquatic organ that enable oxygen to diffuse into an animals body and carbon dioxide to exit.
Gills
the structure for feeding where animals take in food from suspended water and separate the water from the food.
filter feeding
Which animal moves by undulation:
A seagull
B Squirrel
C Snake
D Squid
C: Snake
What is the main difference between an endoskeleton and an exoskeleton
An endoskeleton is internal, an exoskeleton is external
A netlike control system that send signals to and from all parts of the body
Nerve Net
A system that transports blood and other fluids into open spaces that surround organs in the body
Open Circulatory System
A specialized structure in the digestive system where ingested material is stored
a crop
What is the function of a crop
A. Exchange gases
B. Protect organs
C. Store food
D. Transport material
C. Store food
What is the difference between a nerve net and a nerve cord?
a nerve net does not have a brain, a nerve cord has many neurons that send signals to the brain via the central nervous system
Some animals move in a wavelike motion called
undulation
tiny holes on the surface of an organism where oxygen enters the body and carbon dioxide leaves the body
spiracles
A muscular pouch similar to a stomach that is used to grind food
Gizzard
Which animal has a nerve net that controls it's body
a. dog
b. python
c. Sea anemone
d. Human
C. Sea anemone
What are the four types of movements we learned about in class?
Swimming, flying, undulate motion, and walking.
A skeleton located on the inside of the body, underneath flesh
endoskeleton
A system that transports materials through blood using vessels
Closed Circulatory System
The process in which nutrients from digested food are taken into the body
Absorbtion
What give a hydrostatic skeleton its support?
a. bones
b. cartilage
c. shell
d. coelom
d. Coelom
What are the four major methods for gas exchange we learned about in class
Gills, lungs, spiracles, diffusion