A population of pacas, a nocturnal rodent, live in South America. Their diet consists of leaves, flowers, and fruits that have fallen from taller trees. A recent fire has wiped out much of the food that the pacas eat. This has caused the pacas to lose body mass. Due to the lack of food, subsequent generations of pacas are thinner than the preceding generations. Identify if this is an example of descent with modification and justify your response.

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.