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In an embryonic vertebrate, the apical ectodermal ridge (AER) is a thickened area at the tip of the bud. The cells of the AER secrete protein signals that promote limb-bud outgrowth, and removing the AER

asked Apr 9, 2020

Biology
high-school

1 answer

5 votes

196k views

Select all the true statements. A.The length of AB is –3. B. d(B, C) = BC = |6 – 1| C. AB + AC = BC D. AB + BC = AC E. The length of BC is 6.

asked Jan 12, 2020

Mathematics
middle-school

1 answer

2 votes

122k views

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