Fossils are just skeletons that are found in the ground, left from generations ago. Such as Dinosaur Skeletons.
Answer:
Most modern systems of classification are based on evolutionary relationships among organisms – that is, on the organisms' phylogeny. Classification systems based on phylogeny organize species or other groups in ways that reflect our understanding of how they evolved from their common ancestors.
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Answer:
NEPHRONS ARE THE FUNCTIONAL AND STRUCTURAL UNIT OF KIDNEYS...
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Answer:
the balloon and soda can will do nothing, while the two balloons will repel each other
Explanation:
opposites attract and the soda can is too heavy to be attracted to the balloon
1. respiratory system
sorry i’m not sure about the second one !
