The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.
Process of photosynthesis makes glucose. Excess glucose is stored as starch, or made into cellulose in cell walls.
The answer is A because with rna G and C always go together and A and U always go together
Follicle stimulating hormone (FSH) and Luteinizing hormone (LH) are Gonadotropins stimulated in the gonads. In females, they are located in the ovaries. They are not needed for life yet important for reproduction. Progesterone which is being secreted in corpus luteum is needed for maintenance of pregnancy thus if a female has a low FSH and LH it will affect the chance of her be pregnant.
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Fossils are often found in <u>Sedimentary</u><u> </u><u>rocks</u> because it is formed from the remains of once living things.
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