Biology: The Dynamics of Life, California Edition

Section 1: Typical Animal Characteristics

Typical Animal Characteristics

1.
Which of these describes an animal whose mouth develops from cells found on the gastrula?
A)a larva
B)an embryo
C)a deuterosome
D)a blastula
2.
Which of these is NOT a characteristic of all animals?
A)is a eukaryote
B)has multiple cells
C)is a heterotrope
D)has cells with cell walls
3.
Which of these characteristics does not correctly explain why elephants are classified as animals?
A)Elephants are eukaryotes.
B)Elephants are multicellular organisms.
C)Elephants are sessile.
D)Elephants depend on autotrophs for food.
4.
Corals are animals that move around their environment only during the early part of their lives, then they become __________.
A)vertebrates
B)autotrophs
C)bilaterally symmetric
D)sessile
5.
<a onClick="window.open('/olcweb/cgi/pluginpop.cgi?it=jpg::::/sites/dl/free/0078665809/181858/ch25_0_a.jpg','popWin', 'width=NaN,height=NaN,resizable,scrollbars');" href="#"><img valign="absmiddle" height="16" width="16" border="0" src="/olcweb/styles/shared/linkicons/image.gif"> (9.0K)</a>
What does this illustration represent?
A)fertilization
B)photosynthesis
C)mitosis
D)cleavage
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