Four of the five answers listed below are characteristics of phloem. Select the exception
a. Phloem contains dead cells when tissue is functional.
b. Phloem is made of complex tissue.
c. Phloem has sieve plates between some cells.
d. Phloem includes accessory companion cells.
e. Phloem transports sugar.
a
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The plasma membrane is a thin sheet of lipid embedded with
A. proteins. B. carbohydrates. C. polymers. D. nucleotides. E. sodium and potassium ions.
What is the process involved with nitrifying bacteria?
a. nitrite ? nitrate b. nitrate ? nitrite ? nitrogen gas c. nitrate ? ammonia d. urea ? ammonia e. nitrogen gas ? ammonia
The process by which glands release enzymes to aid in digestion is ____
a. motility b. secretion c. digestion d. absorption e. elimination
One of the direct products of deamination is urea. Indicate whether the statement is true or false