The vertebrate subphylum consists of tunicates sea squirts stingrays lamphreys trout

The answers are sting rays, lamphreys and trout. Subphylum vertebrata are chordates with backbones. Currently, there are approximately 64,000 species listed belonging to this group. They are sometimes referred as "Craniata".

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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.