★ Transportation and Excretion Quiz
Small openings called ______ are found on the underside of leaves and allow gases to enter or leave the plant cells.
A. Phloem
B. Chloroplasts
C. Xylem
D. Stomata
Select your answer:
Topics:
Joints BIOMEDICAL MCQ Bone Development and Remodeling Physical Education and Health Mitosis Cardiovascular and Respiratory Medical Terminology Gastroinestinal Gastroenterology First Aid Check up Muscles and Healthy Body CVA Thyroid Disease Cartilage Biology Heart Anatomy Normal Radiographic AnatomyOther quiz:
Embryology › ViewCohesive mass of pollen grains held together by a common sticky substance.
A. Callose
B. Pollinium
C. Compound pollen grain
D. Sporopollenin
Life Processes Excretion › View
A nitrogen waste resulting from the breakdown of the amino acids produced during protein digestion.
A. carbon dioxide
B. bile
C. urea
D. water