The medulla oblongata detects the levels of oxygen and carbon dioxide concentrations and signals the muscles in the heart, the lungs and diaphragm to increase or decrease thebreathing. The pons controls the speed of inhalation and exhalation orrespiration rate depending on the need of the body.
The answer is “d” (1,000 kcal). As the trophic level increases energy is decreases by 10 times that of the previous level. If a system has 10,000 kcal, then the primary consumer have 10 times less (10,000/10) which is 1,000 kcal. The secondary consumers have 100 kcal and the tertiary have 10 kcal. Only 10% of the energy at each trophic level goes on to the next.
A sugar, a phosphate group, and a nitrogen base
Answer:
Agricultural revolution, start of Neolithic era, maybe 12000 yrs ago
Explanation:
Answer:
Explanation:
eukaryotes are compleax and have true nucleus e.g animal and plant
prokaryotes have fake nuclus its small and simpler.
therefors its B
