Below is a hypothetical developmental pathway. this pathway leads to the expression of a black pigment in certain cells of the ectoderm (the spot cells) which results in the ladybug's spotted appearance. cells of the ectoderm where black pigment is not produced are red.
l | d → y | b → black
based on the pathway above, will the spot cells in ladybug mutant lacking the d gene be able to make black pigment?
select one:
o not enough information
o yes
o no

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

Which of these is evidence of global warming? a. overall rising seal levels b. falling global temperatures c. an increase in the size of glaciers d. stable precipitation patterns appex

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