General Knowledge
Simple Invertebrates
Molluscs & More
Amazing Arthropods
Interesting Insects
100
What is the largest group of arthropods?
Insects
100
Coelenterata are aquatic animals that have an orifice surrounded by _____?
Tentacles
100
What is the name of the soft-bodied animals that are usually protected by a shell?
Molluscs
100
Crayfish, prawns, and crabs are examples of what type of arthropod? 
Crustacean
100
Three pairs of legs (six legs) extend from what part of an insect's body? 
Thorax
200
Invertebrates make up __% of the animal species?
95%
200
What is the difference between a polyp and a jellyfish?
Polyps are fixed to the bottom, while jellyfish can swim.
200
A snail is an example of what group of molluscs?
Gastropods
200
How many legs does an arachnid have?
Eight
200
Some insects have one or two pairs of what special body part?
Hint: They are attached to the upper thorax.
Wings
300
This group of animals has radial symmetry and an external skeleton consisting of rigid plates. Example: Starfish.
Echinoderms
300
What are the two types of flatworms?
Planaria and Tapeworms
300
This creature does not have a head and its body is inside of a shell with two articulated valves.
Bivalves
300
How do arthropods grow?
https://www.youtube.com/watch?v=qLPm-VG9E_E&t=19s&ab_channel=DoublebearsLittle
Hint: This involves "shedding" part of their body to make room for new growth.
Moulting
300
Insects grow through what process?
Metamorphosis
400
This arthropod has many jointed segments, each with one or two pairs of legs. Example: Centipede.
Myriapod
400
What are the tiny worms with thin, cylindrical bodies?
Hint: Many are parasites such as roundworm, whipworm, and anisakis.
Nematodes
400
Octopus and cuttlefish are examples of what type of mollusc?
Hint: They have an inner shell and very sophisticated eyes.
Cephalopods
400
What body part is a fusion of the head and thorax?
Cephalothorax
400
Insects bodies are divided into how many parts? What are they?
Three parts: Head, thorax, abdomen.
500
What characteristic is shared by all invertebrates?
They have no spinal column (backbone).
500
What are the aquatic animals that live attached to rocks?
Porifera or Sponges
500
Annelids are worms whose bodies are composed of ____?
Segments or Rings
500
Arthropods are protected by what?
Exoskeleton
500
What types of food do insects eat?
Everything. They can be herbivorous, carnivorous, or omnivorous.