Answer:
oxygen
Explanation:
Living organisms often contain amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium and phosphorus. But Oxygen is the most abundant element contained within living organisms, composing about 65% of the human body.
Answer:
The metamorphic rock and sedimentary rock were already at this location and magma flowed into other rocks
The plant starts life as a seed, which germinates and grows into a plant. The mature plant produces flowers, which are fertilised and produce seeds in a fruit or seedpod. The plant eventually dies, leaving seeds which germinate to produce new plants.
