Structure of Animals
Animals are composed of what?
Tissue and cells
What are stable internal conditions called?
Homeostasis
How many animals have scientists already identified?
over 1.5 million (150,000,000)
What makes up the body of a bath sponge?
What do Cnidarians have to capture and protect themselves with?
Stinging cells
Organisms Form what?
Bioshpere
Raw Materials for growth, and energy.
What are the 3 symmetries?
Radial, bilateral, and no symmetry.
What is the cell called that filters food into a sponge?
Collar Cells
What are the two body plans for Cnidarians?
Polyp and medusa
Tissue forms what?
Organs
What happens if an animal's internal conditions become unstable?
What is cell death, followed by death?
What are collar cells?
A cell used in sponges to filter particles.
Are sponges invertabret?
Yes
How do sea anemones escape danger?
By firing nerve cells rapidly on each side, alternating.
Organ systems form what?
Organisms
Do animals have to move at one point in their lives?
Yes
What is radial symmetry?
Many lines of symmetry.
How do sponges reproduce?
Sperm gets filtered into the sponge and then larva gets produced.
What do jellyfish larvae turn into?
Polyps
Organs Form What?
Organ System
What are the two ways animals can reproduce?
Sexually, and asexualy.
Can some animals be invertebrates?
Yes
How do sponges obtain oxygen?
They filter it from the water.
What organisim is a Portuguese man of war?
Colonial organismis.