What is a characteristic of all amphibians? A. are endothermic
B. covered in impermeable skin
C. lack a tail
D. have gills at some stage of development

If a set of instructions that determines all of the charactersitics of an organism is comparedto a book,and a chromosme is compared to chaper in the book,then what might be compared to a paragraph in the book?

How can you keep track of variables in a science experiment?

Set comes up with for examples of sound waves ocean wave light wave and hand wave which of tonys examples is not an actual scientific wave