You are asked to determine if a tissue sample taken from a plant stem comes from a monocot or eudicot. How will you accomplish this?
A. Examine the vascular cambium and determine if it is divided into segments or is continuous throughout the stem.
B. Locate the vascular bundles and analyze their pattern.
C. Determine if the xylem and phloem are located in separate vascular bundles or are bundled together.
D. Look at the ground tissue to see if it is arranged in concentric rings or in parallel bundles.
E. Examine the epidermis and determine the depth of the cuticle layer.
Answer: B
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What would you expect to observe in a species with a promiscuous mating system?
A. Intrasexual selection is very strong, with larger females. B. Intrasexual selection is very strong, with larger males. C. A female mates with a different male in every breeding season. D. Kin selection is not very important. E. None of these choices are correct.
What is an asteroid?
a. dust and small rock orbiting around the sun b. a ball of ice with a tail c. a small planet d. a small sun with weak solar emissions e. debris from a large planet
In woody plants, the lateral transport of materials occurs through:a
lenticels. b. pith
c. pith rays. d. phloem fiber caps. e. rays.
The thymus cleanses the blood from the cardiovascular system of cellular debris and bacteria.
Answer the following statement true (T) or false (F)