how can scientists test their ideas about the orgin of the unverse if they cant physically interact with or study it

Which of the following best describes a greek polis? a a marketplace where merchants peddled their wares b a walled fortress built to defend against enemies c a capital city with its surrounding countryside and villages d a temple for worshipping

A planet is orbiting a nearby star. Suppose that the star's gravity increases over time. What effect will this increase most likely have on the planet's path of motion?

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

Which of the following is an example of an experimental scientific investigation?

Which of the following is true about the Sun? A. The Sun is the only star in the Solar System. B. The Sun is the only star in the Milky Way. C. The Sun is the only star in the universe. D. The Sun is not a star.

List these ancestors of modern man, from oldest to youngest. Australopithecus afarensis. Homo erectus. Homo heidelbergensis. Homo antecessor. Homo habilis

DNA and RNA are both

How do scientists communicate the proven results of their experiments? A) They inform only the scientists they work with directly. B) They write a blog post about the experiment. C) They inform journalists so that it is distributed in the media.

What part of the larynx covers the laryngeal inlet during swallowing to keep food out of the lower respiratory passages?

Fallout shelter how long does it take for a baby to be born