The answer is c) Organisms are multicellular and undergo photosynthesis!
Downward pull of gravity can cause materials to move from areas of high elevation to areas of low elevation. The force of gravity can cause rocks and glaciers to move down mountain slopes, and also cause rivers to flow toward the oceans. Landslides are the sudden mass erosion of rocks down a hill.
Build several models of his tree house out of different materials, and see which model holds up best to wind, water, and ice.
Answer:
Lungs and Endoskeleton.
Explanation:
Gills helps it live in water, and Scaly skin doesn't really apply
Answer:
Explanation:the cranial end of the neural tube closes by 24days and the caudal 25-36 days . Defective closure of the neural tube result in neural tube defects (NTDs) . it also depends on the point of the defect , NTDs may also affect the brain and spinal cord.
