Life Science Ch. 9 Vocabulary Sections 1-4

24 terms by lmwa2001 

Create a new folder

Advertisement Upgrade to remove ads

cell

The basic unit of structure and function in living things

tissue

A group of similar cells that perform a particular function

organ

A structure in the body that is composed of different kinds of tissue

adaptation

A behavior or physical characteristics that allows an organism to survive or reproduce in its environment

sexual reproduction

A reproductive process that involves two parents that combine their genetic material to produce a new organism, which differs from both parents

fertilization

The joining of a sperm cell and an egg cell

asexual reproduction

A reproductive process that involves only one parent and produces offspring that are identical to the parent.

Phylum

One of the major groups into which biologists classify members of the animal kingdom

vertebrate

An animal that has a backbone

invertebrate

An animal that does not have a backbone

bilateral symmetry

Body plan with two halves that are mirror images

radial symmetry

The quality of having many lines of symmetry that all pass through a central point.

larva

The immature form of an animal that looks very different from the adult

cnidarian

An invertebrate animal that uses stinging cells to capture food and defend itself

polyp

The cnidarian body plan characterized by a vaselike shape and which is usually adapted for life attached to an underwater surface.

medusa

The cnidarian body plan characterized by a bowl shape and adapted for a free-swimming life.

colony

A group of individual organisms living or growing together

coral reef

A diverse environment named for the coral animals that make up its stony structure

parasite

The organism that benefits by living on or in a host in a parasitism interaction

host

The organism that a parasite or virus lives in or on

free-living organism

An organism that does not live in or on other organisms

scavenger

A carnivore that feeds on the bodies of dead organisms

anus

A muscular opening at the end of the rectum through which waste material is eliminated from the body

closed circulatory system

A circulatory system in which blood moves only within a connected network of tubes called blood vessels

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set