★ Biology Quiz
What is the MAIN reason animals engage in play behavior?
A. to socialize
B. to strengthen family bonds
C. to learn about each other
D. to learn skills like hunting
Select your answer:

Topics:
Clinical Pathology Lung & Breathing Nutritional Measurements Biochemistry Lab Skills for Health Excretion-Dialysis Blood/Lymphatic/Immune Pathology Inflammation Knee Anatomy Major Organs Carbohydrates Pulmonary System Intravenous Fluid Therapy Respiratory Diseases Excretory and Musculoskeletal SystemOther quiz:
Musculoskeletal System › ViewThe _____ bone is the smooth, hard, white layer of bone. It bears stress from all directions.
A. spongy bone
B. compact bone
C. bone marrow
D. fibula
Cell Review › View
Cells need to bring in molecules to carry out cellular processes. Often, this requires moving the molecules across the cell membrane against the concentration gradient. How do these molecules get into the cell?
A. passive transport by diffusion
B. active transport using ATP
C. passive transport by osmosis
D. osmosis