How Are Invertebrates Classified?
What is the difference between vertebrates and invertebrates?
Cnidarians are mostly made up of a?
These have a muscular foot and a soft, unsegmented body surrounded by a mantle.
Mollusks
What type of symmetry to arthropods have?
What are ocelli?
Light-sensitive cells used to see
What types of skeletal structure do invertebrates have?
Plates, spines and shells
What is the process of growing new body parts?
Regeneration
These have spiny skin and an endoskeleton.
Echinoderms
What is the exoskeleton of arthropods made of?
Chitin
Who has the eye closest to a human eye?
What 3 types of symmetry can animals have?
Bilateral, radial, and asymmetric
Why are sponges important?
They help purify the water and reduce nitrogen levels.
Which mollusks have tentacles to help them find food?
Octopus
What is the difference between complete and incomplete metamorphosis?
Complete the insect will completely change and not look like the nymph. Incomplete the insect will look the same all the way throughout
Cephalopods change color to communicate. What are the cells that change the color called?
chromatophores
If an animal is asymmetrical what can you say about its body parts?
They are not complex or specialized.
What have long, soft flat bodies and eyespots that detect light?
Flatworms
What system allows an echinoderm to move?
Water-vascular system
What kind of lungs do spiders have?
Book - lungs
What are three ways invertebrates communicate with behavior?
Dancing, changing color, and using chemicals (pheromones)
Name the 8 Invertebrate Phylum
Porifera (sponges)
Cnidaria (Cnidarians)
Platyhelminthes (Flatworms)
Nematoda ( Roundworms)
Annelida (Segmented Worms)
Mollusca (Mollusks)
Echinodermata ( Echinoderms)
Arthropoda (arthropods)
An example of a segmented worm is?
Earthworm
Oyster, clam
How many legs do insects have?
What function do pheromones serve?
Communication