Which of the following systems is the only one to have direct interactions with the other three?
a. digestive
b. urinary
c. circulatory
d. respiratory
e. reproductive
C
Biology & Microbiology
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Label the diagram using the following terms: bark; heartwood; sapwood; secondary phloem; vascular cambium.
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Biology & Microbiology
Leaf __________ in the fall is an adaptation for flowering plants to survive harsh winters in temperate
climates. a. desiccation b. photosynthesis c. abscission d. growth e. production
Biology & Microbiology
Why is the study of biology central to the understanding and solving of the world's great environmental problems?
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Biology & Microbiology
Phase of cell division that occurs between prophase and metaphase and is characterized by attachment of the spindle fibers to the kinetochores of each sister chromatid.
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Biology & Microbiology