Invertebrate I
_________ do not have organs.
a. roundworms
b. sponges
c. planarian
d. jellyfish
What is b. sponges
A jellyfish is classified as a coelenterate because it has
a. Two cell layers and a hollow body core
b. segmented body walls
c. jointed appendages and an exoskeleton
d. a backbone
What is a. two cell layers and a hollow core
All of the following are features of animals except _____.
a. move about
b. have many cells
c. are heterotrophs
d. are autotrophs
What is d. autotrophs
The exoskeleton has to be cut in order to observe the internal structures of the
a. earthworm
b. hydra
c. frog
d. grasshopper
What is d. grasshopper
Sharks, skates, and rays all have skeletons made of
a. muscle
b. bone
c. cartilage
d. skin
What is c. cartilage
Many stinging-celled animals have all or the following except _________.
a. a mouth
b. tentacles
c. a backbone
d. body cavity
What is c. a backbone
A life cycle is best described as the
a. series of changes in the development of an organism
b. movement of an organism from place to place
c. ability of an organism to adapt to its environment
d. flow of energy through an organism’s community
What is a. series of changes in the development of an organism
Unlike the eggs of fish and amphibians, the eggs of reptiles _________.
a. are fertilized internally
b. are fertilized externally
c. hatch into larvae
d. have no shell
What is a. fertilized internally
What word means body temperature changes when the outside temperature changes?
a. cold blooded
b. classify
c. warm blooded
d. vertebrate
What is a. cold blooded
Most fish belong to what type?
What is bony fish
An example of a parasitic flatworm is....
a. earthworm
b. tapeworm
c. round worm
d. planarian
What is b. tapeworm
Organisms are classified as insects based on their
a. method of reproduction
b. natural habitat
c. internal and external structure
d. form of communication
What is c. internal and external structure
The primary purpose of mammary glands in mammals is to produce______.
a. milk
b. scent
c. oil
d. sweat
What is a. milk
A fish is a type of animal that
a. has a backbone
b. lives in water
c. has fins
d. all of the above
What is d. all the above
I live part of my life in the water and part on land. I am born with gills but grow lungs during my metamorphosis. I am ectothermic (cold-blooded). I have moist smooth skin. What am I?
What is amphibian?
Arthropods have all of the following except ______.
a. jointed legs
b. exoskeleton
c. endoskeleton
d. segmented bodies
What is c. endoskeleton
Starfish belong to the ________ phylum.
a. arthropod
b. echinoderm
c. stinging-celled
d. mollusk
What is b. echinoderm
_________ are cold-blooded vertebrates that spend time in water and on land, but lay their eggs in water.
a. hagfish
b. amphibians
c. reptiles
d. mammals
What is b. amphibians
The three types of fishes are:
What is bony, cartilaginous, and jawless
Mammals are covered with
a. scales
b. smooth, moist skin
c. fur or hair
d. feathers
What is c. fur or hair
Most segmented worms have _________.
a. tentacles
b. eyespots
c. no mouth
d. hearts
What is d. hearts
Centipedes have ________ legs per body section.
a. 2
b. 4
c. 6
d. 8
What is a. 2
Reptiles and other vertebrates are classified in the ______ phylum.
a. Echinoderm
b. Arthropod
c. Chordate
d. Mollusk
What is c. chordate
What word means that fish do not control their body temperature (Its controlled by their environment)?
a. endothermic
b. exothermic
c. ectothermic
d. tropothermic
What is c. ectothermic
A skeleton on the outside of the body is called
a. exoskeleton
b. endoskeleton
c. ezroskeleton
d. enzoskeleton
What is a. exoskeleton