1. Write down an example about one form of cell communication (signaling) in the human/ animal/plant cells 2. Explain the pathway 3. Identify the ligands and Receptors 4. Identify the cellular response 5. List at least one disorder related to the pathway (signaling pathway)

answer; i believe the answer is (polygenic inheritance;

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.