The graph represents what has happened over an 8 year period, when non-native Nile perch were introduced to Lake Malawi in Africa. Based on the data, which statement is true? A) The Nile perch is competitively excluding the pike cichlid. B) The Nile perch and Pike cichlid probably do not compete for food. C) There is probably commensalism between the Nile perch and the pike cichlid. D) The Nile perch and Pike cichlid probably occupy different ecological niches.

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he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

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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.

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