Heartwood and sapwood consist ofa. bark.b. periderm.c. secondary xylem.d. secondary phloem.

If you pound a nail into a tree 1 meter off the ground and come back to find it in 20 years, what will it be?

Cell division would occur least frequently in which of these tissues?

Annual rings in wood are evidence that in climates with a single annual growing season, the __________ divides actively when water is plentiful and temperatures are suitable for growth and ceases to divide when water is scarce and the weather is cold.

Most of the growth of a plant body is the result ofa. cell differentiation.b. morphogenesis.c. cell division.d.cell elongation.

How are Okazaki fragments synthesized?a. by using the leading-strand template, and synthesizing 5'→3'b. by using the leading-strand template, and synthesizing 3'→5'c. by using the lagging-strand template, and synthesizing 5'→3'd. by using the lagging-strand template, and synthesizing

Which statement best characterizes primary growth?a. It does not occur in roots, only in shoots.b. It leads to the development of cork tissue.c. It produces the dermal, ground, and vascular tissues.d. It produces rings of xylem, phloem, and cork tissue.

Which statement concerning grafting is correct?a. Stocks and scions refer to twigs of different species.b. Stocks and scions must come from unrelated species.c. Stocks provide root systems for grafting.d. Grafting creates new species.

The phase change of an apical meristem from the juvenile to the mature vegetative phase is often revealed bya. a change in the morphology of the leaves produced.b. the initiation of secondary growth.c. the formation of lateral roots.d. the activation of floral meristem identity genes.