If you cut a stalk of celery and put it in a glass of water containing red food coloring overnight, the next morning the celery will be red. The food coloring was taken up through which of the following?
A. phloem
B. stomata
C. xylem
D. dermal tissue
E. ground tissue
Answer: C. xylem
Biology & Microbiology
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Biology & Microbiology
The latency period of syphilis is ________.
A. 20 years or longer B. 10 years C. 3 to 6 months D. 1 year
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There are an estimated __________ deaths per year
in the United States from lung cancer among nonsmokers who associate with smokers. a. 1,000 b. 1,500 c. 2,000 d. 2,500 e. 3,000
Biology & Microbiology
Which process is used to reduce the number of chromosomes from parent cell to daughter cell?
a) meiosis b) mitosis c) independent assortment d) crossing over
Biology & Microbiology