What is the most abundant metabolic waste produced by animals?
a. ketones
b. sodium ions
c. ammonia
d. uric acid
e. water
c
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Which of the following is not a general requirement for complex multicellular life?
A. Cells must retain a full range of functions, including reproduction. B. Cells must stick together. C. Cells must communicate with one another. D. Cells must participate in a network of genetic interactions that regulate cell division. E. All of these options are requirements for complex, multicellular life.
A person who is homozygous recessive for this defective gene often suffers from severe
pancreatitis, which can be deadly. A treatment that replaces this gene is __________.
a. gene therapy b. genomics c. therapeutic cloning d. a genetic marker
The gray matter is the inner portion of the cerebrum
____________________ Indicate whether the statement is true or false.
What is the period of rapid cell division in which the embryo does not increase in overall size?
A. Syngamy B. Meiosis C. Crest formation D. Cleavage E. Neurulation