Which two words are paired correctly? vertebrate, endoskeleton
invertebrate, endoskeleton
vertebrate, autotroph
invertebrate, autotroph

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

Explain how scientists use geologic time to determine the age of landforms.