Answer:
O Two samples can have different properties, depending on the source.
Explanation:
Here are some of the themes in biology that come up again and again:
-cellular basis of life
-information and heredity
-matter and energy
-development and reproduction
-homeostasis
-evolution
-structure and function
-unity and diversity of life
-interdependence in nature
-science as a way of knowing
Explanation:
Astronomers have a huge problem detecting radiation from space because the Earth's atmosphere blocks most of it and stops it from reaching the surface. Visible light and radio waves get through to telescopes on the ground, and some detectors (infrared, UV and gamma) work when they are high up on mountains.
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