The solar system is made up of eight planets, numerous comets, asteroids and moons, and the sun. the force that holds all of these objects together is

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different

Modern sea star larvae resemble some primitive vertebrate larvae. this similarity may suggest that primitive vertebrates

Which diagnostic test is the most preferred to detect liver cancer?