What is an Animal?
What are adaptations?
Structures or behaviors that allow animals to preform basic functions in their environments.
Animals that have many lines of symmetry that all go through a central point
Radial symmetry
Budding is a form of _____.
asexual reproduction
What are the body plans for cnidarians?
Polyp / Medusa
True or false
Roundworms have radial symmetry.
False
Bilateral symmetry
What is an invertebrate. A vertebrate?
Without a backbone.
With a backbone.
True or False
Sponges have separate sexes.
False
Sponges contain both sexes within them
Sponges obtain ____ and ____ from the water.
Food and water
Cnidarians capture food and defend themselves by ___.
Using their stinging cells
Three major worm phyla are flatworms, roundworms, and _____
segmented worms
True or False
Sexual reproduction is the process by which a single organism produces a new organism identical to itself.
False
Asexual reproduction
True or false
Evidence suggests that all animals arose from single cell organisms.
True
How do sponges reproduce?
sexually and asexually
a. vertebrates
b. sponges
c. invertebrates
d. flatworms
c. invertebrates
Tapeworms are a ______
parasite
True or False
The cells of most animals are organized into higher levels of structure, including tissues, organs, and systems.
True
An organism that supports a parasite is called _____
host
True or false
Collar cells help move water through sponges.
False
Pores move the water.
Collar cells trap food
True or False
Corals spend their adult lives as medusas.
False
Polyp
Roundworms have a digestive tract with _____ opening(s).
two
Characteristic which animals are classified are _____, _____, _______.
body structure, DNA, the way they develop
An organism that lives in or on another organism is called a ____.
parasite
Characteristics of sponges
filters water, has collar cells, reproduces sexually and asexually
What is a coral reef?
A coral reef is a colony of corals (cnidarians) that live together as one unit. The coral polyps develop a hard stony skeletons around their soft bodies. They are also home to hundreds of other species that live within the reef.
Segmented worms have a(n) ______ circulatory system.
closed