Answer:
Earth formed around 4.54 billion years ago, approximately one-third the age of the universe, by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere and then the ocean, but the early atmosphere contained almost no oxygen.
Explanation:
A. A transgenic organism
Transgenic means "crossed genes" whichnis what happened
Best Answer: B.Elongated sporophyte<span>
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Cartilaginous fish do not contain any bones - their skeleton is made up of cartilage.
Answer:
Fertilizer is added to soils to increase plant productivity. A common type of fertilizer is called NPK fertilizer because of its ingredients: nitrogen (N), phosphorus (P), and potassium (K).
Explanation: