What is the ultimate source of most energy used by organisms on earth?

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

Suppose you use three different scale to weigh a bag of organges. one scale says the nag weighs 2.1 lb, and third says it weighs 2.1 lb. the actual weight of the bag of organges is 2.153 lb. which of the following best decribes these results?

Across of blue x blue (both heterozygous) would result in