<span>The DNA atom is formed like a turned step. Prior work had demonstrated that DNA is made out of building squares called nucleotides comprising of a deoxyribose sugar, a phosphate gathering, and one of four nitrogen bases cytosine (C), adenine (A), guanine (G), and thymine (T), </span>
Answer:
B. Brain stem
Explanation:
The brain stem controls basic body functions such as breathing, swallowing, heart rate, blood pressure, consciousness, and whether one is awake or sleepy.
People breathe out Carbon Dioxide and plants use that Carbon Dioxide to carry out photosynthesis. Plants release oxygen as a by- product that people use for cellular respiration.
Answer:
Nitrates are the soil-based compounds plants use to create amino acids from glucose
Explanation:
The right answers are 5 and 6.
The somatic nervous system is part of the peripheral nervous system <u>(part of the nervous system consisting of nerves and ganglia, and whose essential role is the transmission of information between the central nervous system - brain and spinal cord - and organs)</u>. It intervenes in the voluntary control of movements (or involuntary movements in case of reflexes, but this is different from the involuntary activities) (efferent fibers) and in the perception of external stimuli (afferent fibers).
The somatic nervous system controls the movements of skeletal muscle (which are generally voluntary) and the environmental perception, (think to the arc reflex).
The involuntary activities (proposition 1) mean automatisms like the heartbeat, respiration, secretions of hormones or sweat...
