What's an animal?
What is the term for an organism that eats other organisms?
Heterotroph/consumer
This is the term for an external skeleton, which is a characteristic of arthropods
exoskeleton
This is the term for an organism that requires a host to survive
Parasite
A squid and an octopus are both members of which phylum?
Mollusk/mollusca
This is an example of a mammal
An invertebrate does not have a ________
Backbone/spine
This class of arthropods has antennae and 3 pairs of legs
Insect
What type of worms have segmented bodies?
Annelids
Give an example of an echinoderm
Urchin, sea star, brittle star, sea cucumber, sand dollar
This is the number of chambers in the mammalian heart
4
Animals are ____________, which means they store their DNA in a nucleus
Eukaryotes
This class of arthropods includes lobsters, crabs, and shrimp
Crustaceans
What are the 2 classes of worms?
Flatworms & segmented worms
Sponges are sessile – what does this mean?
Unable to move/rooted to the ground
This is the term for an egg-laying mammal
Monotreme
What is the oldest animal group?
Porifera/Sponges
This is what the prefix “arthro” means
jointed/hinged
What is the function of an annelid’s circulatory system?
To pump/move blood
Cnidarians, like jellyfish and corals, have what protective feature?
Stinging tentacles
This is the term meaning “warm-blooded”
Endothermic
Unlike plant cells, animal cells do not have this rigid structure that surrounds and protects the cell.
Cell wall
This class of arthropods includes spiders & scorpions
arachnids
Give an example of a parasitic worm.
Leech, tapeworm, fluke
What is the only animal phylum that does not have any tissues?
Porifera/sponges
Mammals are __________, which means their young develop in an amnion
Amniotes (placental)