Glencoe Biology

Section 1: Animal Characteristics

Self-Check Quizzes

1
Animals that feed on other organsims for nutrients are described as ____.
A)unicellular
B)heterotrophic
C)segmented
D)invertebrate
2
The ____ is the outer layer of cells in the gastrula.
A)coelom
B)endoderm
C)ectoderm
D)protostome
3
Which structure results from the inward movement of cells in the blastula?

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A)2-cell stage
B)16-cell stage
C)gastrula
D)sperm cell
4
Which of these occurs during early embryo development?
A)cell number decreases; amount of cytoplasm increases
B)cell number increases; amount of cytoplasm remains
C)cell number remains the same
D)cytoplasm disappears
5
Which of the following is not a means of asexual reproduction?
A)cephalization
B)budding
C)regeneration
D)fragmentation
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