That the oxygen levels in the test tube increased and carbon dioxide levels decreased because plants produce oxygen using carbon dioxide
slow heart rhythm (bradycardia)
Explanation:
when a persons heart beat is not normal is typically let's say 60-100 beats per minute that means the blood is not pumped properly throughout the body. so the pacemaker works as an heart machine to keep your heart beating.
Dirt inside the moist earth
Answer:
B. Bacteria on the roots of a soybean plant
Explanation:
Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants.
