I will go outside after i make my airplane. I will through it at about a 45 degree angle and see if my hypothesis was right about how far it will go. Then I will right down my results.
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The answer is D
Hope this helps
Answer:
Los glóbulos rojos se forman en la médula ósea roja de los huesos. Las células madre en la médula ósea roja llamadas hemocitoblastos dan lugar a todos los elementos formados en la sangre.
Answer:
a marine invertebrate of the phylum Echinodermata, such as a starfish, sea urchin, or sea cucumber.
Theories are modified because they are out of date. There are new discoveries and breakthroughs in science all of the time, so quite often hypothesis' are in need of an update.