Answer:
Around 4.1 billion years ago, the first single celled life form appeared on Earth
When you cross the parents on the outside of the Punnett square, the letters inside the boxes are the offspring
Answer:
Independent variable: The amount of fertilizer.
Dependent Variable : The amount of water, the amount of soil. amount of sun light.
Explanation:
I can't really explain it but I am pretty sure that is the right answer. Hope it helps :)
Trial and Error
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