Weegy: C. CO2 defuses by way of the stomata. accurately describes how carbon dioxide enters a leaf. User: When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the _______ variable. A. experimental B. observational C. environmental D. control Weegy: When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the A. experimental variable. (More)

Weegy: Nucleic acids are composed of monomers called D. nucleotides. (More)

Weegy: If you immerse a living cell in a hypertonic solution, water will D. move out of the cell. (More)

Weegy: If you immerse a living cell in a hypertonic solution, water will D. move out of the cell. (More)

Weegy: D. The electron transport chain occurs in the cristae of the mitochondria. (More)