Invertebrates and Science Key Terms Crossword

name of animals without backbones
An immature form of an animal that looks very different from the adult
Invertebrates that have stinging cells
These are home to more species of fishes and invertebrates than any other environment on Earth.
The basic unit of structure and function of living things
A group of similar cells that perfom a specific function
A group of several differant tissues
The joining of an egg cell and a sperm cell; a form of reproduction
Structures or behaviors that allow animals to perform basic functions in the environment
An invertebrates with a soft unsegmented bodies that are protected with soft outer shell
Without this fish would not be able to breathe under water. Removes oxygen from the water
Type of animal that can eat both plants and other animals
Largest group of mollusks; also they have a single external shell or no shell at all
Second groups of Mollusks that include oysters, clams scallops and muscles; two shells held together by hinges and strong muscles
Octopuses and squids are called this; an ocean dwelling mollusk whose foot is adapted to form tenticles around its mouth
Spiders, mites, ticks and scorpians are called this; they are arthropods with two body sections, four pairs of legs and not antennae
An arthopod with three body sections, six legs, one pair of antennae; usually one or two pairs of wings
An insects midsection and the section to which wings and legs are attached
An organism that makes its own food
An organism that obtains energy from eating other organisms; they eat producers