Which of the following correctly describes the nuclei of I, ii, iii
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Which of the following explains why a tree is often used as a model to represent the principle of common descent

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f

Which statement does lola need to correct, and why? a) statement 1 because spiral galaxies do not havearmsb) statement 2 because the bulges contain mostlyyoung red stars.c) statement 3 because the arms are made of mostlyyoung blue and blue-white stars.d) statement 4 because spirals galaxies contain littleto no dust.(c)