Discuss the evolution of the coelom and pseudocoelom. What advantages do coelomate animals have over
acoelomates? What will be an ideal response?
Concepts to Consider: Coelomate animals evolved from acoelomates; pseudocoelomates
probably evolved from more than one type of coelomate animal. The coelom is a body cavity
that 1) can be filled with fluid to form a hydrostatic skeleton, 2) can be divided into parts that
can be specialized in various ways, 3) provides space where internal organs can grow and
develop, and 4) can cushion internal organs.
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Which connective tissue has a fluid matrix?
A. adipose B. blood C. cartilage D. dense connective tissue E. loose connective tissue
Bacteria use restriction enzymes to ____
a. integrate viral DNA b. destroy viral DNA c. prevent mutation of their DNA d. copy their genes e. inhibit the expression of some of their genes
Molecular DNA testing is used to test for aneuploids
Indicate whether the statement is true or false
The process by which a small balloon is used to widen a narrowed blood vessel is called balloon ________
Fill in the blank(s) with correct word