Can yeast produce co2 without any glucose?

What type of graph presents information about how often certain or traits occur?

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?