Hakeem is testing the effects of sunlight on samples of soil. which of these actions would introduce confounding variables into hakeem's experiment?

Classify the descriptions and examples as endocrine or neural control

Draw the structure of dna nucleotide with adenine as nitrogenous base

One important development during the 3rd trimester that will insulate the infant against changes in temperature is a. the deposition of fat under the skin b. the closing of the septum between c. the atria of the heart d. the beginnings of lung functioning e. the beginnings of light and sound sensing