3.9) name four types of tissue in humans and their functions:
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epithelial, connective, muscular, and nervous.

Explanation:

epithelial-transportation of materials, protection of underlying tissues, absorption of water and nutrients and secretion of waste products.

connective-facilitates movements between the adjacent structures, and by forming bursal sacs it minimizes friction and pressure effects.

muscular-produce force and cause motion,

nervous-transmit nerve impulses that move information around the body.

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.