Reptiles and birds excrete waste as an insoluble white solid that is called uric acid. how does this them maintain internal homeostasis in hot climates

Most of the mammals excrete urine in the form of water along with nitrogenous wastes dissolved in it. This removes water from the body and if there is a constant loss of water from the body then there will be dehydration in the body.

In case of birds and reptiles they excrete the waste out of their body in the form of semi solid matter which does not includes water.

This prevents the loss of water from the body and in this way it helps in maintaining the internal homeostasis of 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.

if the hares very faster than they are now, and thus the lynx's hunting success rate drops because it will be harder to catch them, the rate that will change will be the pray-rate. the pray-rate will change because more hares will be able to survive, thus more individuals for reproduction, so the end result will be increasing population of hares.

the predator-rate will remain pretty much the same because there will be more than enough pray, but the hunting success rate is stagnant.