Answer: There are two ways to determine the age of a dinosaur fossil. One is called relative geologic time, which involves deciding whether one dinosaur fossil is older or younger than another. Geologists then measure the proportion of parent and daughter atoms present in the ash crystals to determine the crystal's age.
Explanation:
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❖ Prokaryotic DNA isn't surrounded by a membrane like Eukaryotic DNA is. The DNA in a prokaryotic cell floats around freely.
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Answer:
angiosperms and gymnosperms away from water, mosses and ferns with water
Explanation:
Pollen allows angiosperms and gymnosperms to reproduce away from water, unlike mosses and ferns which require water for sperm to swim to the female gametophyte.
Complex molecules are made up of other elements bonded with carbon. Carbon is able to bond with other molecules so easily because it has four valence electrons.
