If the apical ectodermal ridge is surgically removed from an embryo, it will lose _____
A) positional information for limb-bud pattern formation
B) guidance signals needed for correct gastrulation
C) unequal cytokinesis of blastomeres
D) the developmental substrate for the kidneys
A
Biology & Microbiology
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Which crop plant would likely have a mutualistic relationship with Rhizobium bacteria?
A. Wheat B. Potatoes C. Corn D. Peas E. Cotton
Biology & Microbiology
Oyster reefs are usually oriented at right angles to the currents in estuaries. How do you think this could be an advantage to the oysters living in this community?
What will be an ideal response?
Biology & Microbiology
Which of the following increase connectivity between patches?
A) edge effects B) matrixes C) boundaries D) corridors
Biology & Microbiology
The zone that has no light is called the ________ zone.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology