Archaeopteryx had "teeth, three claws on each wing" similar to dinosaurs. So, most appropriate answer would be Teeth & Wings
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(Medulla oblongata) is the part of the brain which is affected of the patient who is complaining of breathing problems. The (Medulla oblongata) is a vital center which controls visceral activities such as breathing, heart rates, blood pressure, swallowing and vomiting.
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<span>Ribonucleic acid (RNA) occurs
primarily as single strands, often giving rise to single polynucleotide
structures. RNA is a polymeric molecule
that is responsible for the regulation, coding, decoding and expression of
genes. Each nucleotide has a ribose sugar attached to the carbon, a base that
is composed of purines and pyrimidines, a negatively charge phosphate groups
and a hydroxyl group which causes helix to mostly adopt the A-form geometry.</span>
Answer:
The cellular level of an organism is where the metabolic processes occur that keep the organism alive.
Explanation:
