Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.
Answer:
Polygenic traits are controlled by a number of separate genes.
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Tar sands pits , sorry if I got this wrong
Answer:
B. Disruptive Selection
Explanation:
the population is divided into two distinct groups, or is disrupted so the gentics start to vary between the separted populations over time.
Answer:
I don't know
Explanation:
Because my brain doesn't <em>work</em>
