Which of these does not occur in the Krebs cycle? A. A 4-carbon molecule is recycled.
B. Glucose is broken down into two pyruvate molecules.
C. Pyruvate is broken down into a 2-carbon molecule and carbon dioxide.
D. Citric acid is broken down, creating carbon dioxide as a waste product.

What do you need to use in order to work as an environmental scientist? you need to use the scientific method and__ in order to work as an environmental scientist.

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.

The footprints of a dinosaur and the burrow of an ancient shrimp are examples of which kind of fossils