When a reaction reaches equilibrium,
a. there is no longer entropy in the system.
b. the chemical reactions cease.
c. the rate of the forward and reverse reactions are equal.
d. the concentration of reactants equals the concentration of products.
e. ATP is no longer required to drive the reaction.
C
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Which of the following is the term for a ball of undifferentiated cells that results from repeated mitosis of a fertilized ovum?
A. cleavage B. blastula C. gastrula D. endoderm
Indicate whether the following statements are true or false
_____ Brains are required for movement. _____ Cephalization is thought to be an adaptation for forward locomotion. _____ Cephalization evolved once. _____ All animals show cephalization. _____ All members of the Bilateria show cephalization. _____ Ganglia are nerve cell bodies that provide local processing of sensory information and result in motor output or another physiological effect. What will be an ideal response?
Suppose that your mother and father both have cystic fibrosis, which is caused by a recessive allele. What are the odds of you having cystic fibrosis?
a. 1 b. 3 in 4 c. 1 in 2 d. 1 in 4
Which of the following cytopathic effects is cytocidal?
A) inclusion bodies B) giant cells C) antigenic changes D) transformation E) release of enzymes from lysosomes