Explain how you would distinguish a monocot from a eudicot by looking at the anatomy of their roots. What will be an ideal response?
A monocot root differs from a eudicot root in that a monocot root 1) has a central pith
(instead of a solid core of xylem), 2) has alternating bundles of xylem (instead of “xylem
arms,”) and phloem, and 3) lacks secondary growth.
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You sit next to Uncle Ed, an immunologist, at Thanksgiving dinner. "I'm a 'big eater'", he says, "just like the cells I study." What are the large cells that engulf pathogens that Uncle Ed works with?
A. monocytes B. erythrocytes C. macrophages D. bacteriophages E. antibodies
Why do land dwelling insects drown when they are in water?
a. They are unable to ventilate. b. Their lungs are functioning too fast to sustain life. c. They cannot respire across their body surface. d. They are unable to ventilate because their spiracles are underwater. e. Their gills are too moist.
How does a plant's cuticle allow it to live on land?
A) By preventing water loss B) By absorbing nutrients from the soil C) By preventing the gametes from drying out D) By increasing structural support
Mycobacterium leprae primarily infects
A) macrophages. B) skin cells. C) neurons. D) macrophages and skin cells. E) skin cells and neurons.