The increase in brain size in mammals has been associated with the evolution of endothermy. which of the following best explains this link?
a. endothermic animals require a large hypothalamus to regulate temperature
b. increased jaw musculature associated with chewing allows for an expansion of the braincase
c. endotherms have nasal turbinates which require a large frontal lobe in the brain
d. most endotherms are herbivores and require an increased brain size to process the cellulose in the plant material
e. insulating fur requires individual nerve endings which lead to an increased number of synapses in the brain

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

not only is it colder, it also becomes darker, less salty, and more dense.

the two answers are a, the population of birds with large beaks will increase on the island, and c, the trait for large beaks will be passed on to future generations through natural selection. the reason for that is because if the birds that have beaks developed for eating small seeds lose all of their food, they will go hungry and eventually starve because they physically cannot eat the large seeds, therefore making the population of large beaked birds higher. also, if the trait of large beaks are dominant on the island over small beaks, then over time the large beaked birds will reproduce more and more, while the smaller beaked birds will reproduce less and less because they can't survive with the food provided. that leads to the trait of small beaks disappearing and the trait of large beaks taking over the island.