Answer: A). A piece of DNA that controls a trait
Explanation: A gene is a functional unit of hereditary. A gene determines the characteristics of an offspring. Genes are said to be functional unit of hereditary because they are transferred from the parents to the offsprings.
A gene is a nucleotide sequence found on a chromosome which determines a trait in an individual.
Answer:
C
Explanation:
A nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases.
For example, dead animals and plants can be preserved in amber , peat bogs, tar pits, or in ice. preserved traces of organisms, such as footprints, burrows and rootlet traces - these become covered by layers of sediment , which eventually become rock.
ATP between the 2nd and 3rd phosphate
Your answer would be: True!
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~Wolfe<3