Which type of digestion uses structures to crush and grind food into small parts?
Mechanical Digestion
Which system transports nutrients and gases throughout an animal's body?
Circulatory system
If an ectotherm becomes too hot or too cold, it might...
Move to another location
Veins carry blood toward the heart, what carry blood away from the heart?
Artery
What do invertebrates use to collect and expel wastes?
Excretory tubules
Which structures allow bird lungs to receive fresh oxygen when it breathes in and out?
Air sacs or alveoli
An organism that cannot move from place to place is what?
Sessile
True or False?
Some vertebrates have no lungs and respire completely through their skin
True
True or False?
Most people don't eat insects because they aren't a good source of nutrition.
Which simple nervous system allows an animal to have a limited ability for control and response to its environment?
Nerve net
Which animal has a hydrostatic skeleton?
A. Crab
B. Jellyfish
C. Shark
D. Snake
Jellyfish
What are the branching network of tubes used for respiration called?
Tracheae
What is the organ that aids in digestion and absorbing nutrients?
Intestine
True or False?
Neurons of most animals are bundled together into larger structures called spinal cords.
False
Name three of the things that the body must keep in balance to maintain homeostasis.
Temperature, water, minerals, oxygen, nutrients, waste and carbon dioxide
What are the thread-like structures that increase the surface are of the gills called?
Filaments
How does a tape worm obtain/ingest food?
They absorb nutrients directly through their skin.
Closed circulatory systems use a muscular heart to move blood. What fluid does an open circulatory system use to move nutrients around the body?
Hemolymph
Put the following in order to show the path of a nerve impulse for a bird to flex its wings:
Brain - Muscle - Nerve - Spinal Cord
Brain - Spinal Cord - Nerve - Muscle
Describe how an earthworm moves.
They use their bristles to push against the ground