Which of the following words can appear in science and other subjects?
(1)an
(2)a digestive
(3)a social
(4)a
a) system
b) force
c) fossil
d) vertebrate

Organisms are classified, or grouped into categories, based on similarities in their characteristics and/or evolutionary relationships. the study of how organisms are classified is known as

What is the compliment dna strand to the following sequence: ttgactaggcta

Which are evidence of seafloor spreading? check all that apply. molten material magnetic stripes continent material drilled core samples ocean water samples