Which of the following statements correctly describes the vascular cambium?
A. It is important in the elongation of roots.
B. It occurs only in monocot stems.
C. It develops between the primary xylem and the primary phloem in dicots.
D. It is formed by the ground meristem.
E. It is responsible for all cell types that result from primary growth.
Answer: C
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Campylobacter thioglycollate broth serves which purpose when used in the bacterial fecal culture?
a. Evaluation of general flora and predomi-nant species b. Selection of enteric pathogens such as Salmonella, Aeromonas, and others c. Inhibition of normal flora and selection of enteric pathogens d. Enrichment for Campylobacter spp.
An injection of the pancreatic hormone ________ would cause blood glucose levels to fall
Fill in the blank(s) with correct word
Modern biologists have identified two main factors that drive speciation. What are these factors?
What will be an ideal response?
Harmful amounts of ________ may be absorbed by the leaf cuticle as well as by carotenoids and flavonoids.
A. carbon dioxide B. blue and red light waves C. chlorophyll D. xanthophylls E. UV radiation