In Secondary Tissues, the Axial System Consists of ______ Cells

question 6

Multiple Choice

In secondary tissues, the axial system consists of ______ cells and the radial system consists of ______ cells.

• A)parenchyma; phloem
• B)parenchyma; xylem
• C)xylem; phloem
• D)xylem and phloem; ray
• E)ray; xylem and phloem

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Definitions:

X-rays

A form of electromagnetic radiation with a wavelength shorter than that of UV rays, commonly used in medicine for imaging internal structures.

Myosin

Muscle protein making up the thick filaments in a sarcomere; it pulls actin to shorten the sarcomere, yielding muscle contraction. See also actin.

Insulin

Hormone, released by the pancreas, that serves to lower blood glucose levels by stimulating the uptake of glucose by cells, especially muscle and liver cells.

Oncogenes

Genes that have the potential to cause cancer when mutated or expressed at high levels.