Which of the following characteristics is associated with all animals that are bilaterally symmetrical at some point in their life cycle?
A) Cephalization
B) Coelom
C) Gastrovascular cavity
D) Lack of organs
E) Mesoderm
E
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All of the chemical reactions used to break down nutrients and build up components within the body are collectively known as
A. anabolism. B. catabolism. C. metabolism. D. proteolysis. E. hydrolysis.
The conversion of glucose to lactate is a form of ________
Fill in the blank(s) with correct word
Suppose you are trying to estimate the following regression: Yi = ?0 + ?1X1i + ?2X2i + ?3X3i + Ui, with an instrument for Zi for X2i. All of the following variables will be included (on the right- and left-hand side of this regression) in the first stage of two-stage least squares except for which one?
A. Yi B. X2i C. X1i D. X3i
A characteristic that is common to cnidarians is:
A) a medusa stage in the life cycle. B) stinging cells. C) that they create coral reefs. D) a complete digestive tract. E) an osculum.