Me with this question if you can : ) ~50 points~ birds and mammals live in both warm and cold areas. most reptiles and amphibians live in relatively warm areas.  form  a hypothesis that would explain this difference.

Which medullary index indicates a human hair? a. 0.653 b. 0.733 c. 0.516 d. 0.256

New york city has 2,181 inhabitants per square mile. the state of alaska has 1.03 inhabitants per square mile. ecologists would say alaska has a low exponential growth population density birth rate carrying capacity

Which of the following statements is true? a. there are more chromosomes in an organism than there are genes. b. there are more genes in an organism that there are chemical bases. c. dna is made of sugar, phosphate, and carbon. d. genes are found in specific locations on a chromosome.