An example of a parallel choice on a dichotomous key is

Glucose is broken down in different ways, both in the presence and in the absence of oxygen. using the table for reference, what major products are formed in each reaction set?

Look at the photo of the leaf, which term best describes this leaf ? a-simple. b-parallel. c-lobed. d-tooth.

Methane gas created by a cows flatulence especially in a large herd is a greenhouse gas. true or false.