What is the difference between bilateral and radial symmetry?
Bilateral symmetry means that you can split it in two and it will look identical. Radial symmetry is when the organs are arranged around a central axis.
100
What is regeneration?
The ability to regrow body parts, lost or damaged.
Sucking in water and getting the nutrients from the water and release waste from the same way the food came in.
200
What is the way cnidarians capture food?
Shoot a stinging cell into the body of it's prey and pull it to the mouth.
200
What is the difference between the three different phlya of worms?
Flatworms are flat. Roundworms are round, Segmented worms are segmented and round.
300
What is the difference between invertebrates and vertebrates?
Vertebrates have skeletons that include a backbone in the body. Inverterebrates lack a backbone.
300
What is the main characteristics of sponges?
A hollow body.
Cells are not specialized into tissues.
Water and materials into the body throuht numerous openings called pores.
Waste moves out of the body through a large opening at hte top of the sponge.
300
What is the characteristics of Cnidarains?
Hollow sac-like body that occurs in two forms.
Cells in the tissues.
Only one opening into the body.
Tentacles with stiniging cells.
300
What is the worm that enters from the sole of your foot?
Hookworm
400
What is the amount of animal species found by scientists?
1.5 million
400
What is(Describe) the structure of sponges?
Centeral Cavity: The stomache.
Central Opening: the mouth.
Pores: The small opening in the skin to let the skin hydrate and breathe.
Collar Cells: The throat.
400
What is(How) are corals different from other cnidarians?
Coral attach to the sea floor and catch their food by using tentacles and stiniging cells. Others are able to move and catch their prey the same way.
400
What is the worm that had sensitive eyespots?
Flatworms
500
What is a example of symmetry, bilateral and radial.
Bilateral: your hands
Radial: a bike wheel
500
What is the way they reproduce?
The sponge is able to play both parts of the act. One will play the act of the male and release sperm into the water and another that is playing the act of a female will absorb it. Later releasing the eggs into the water.