A
The phosphorus cycle is the natural cycling of phosphorus between the spheres of the earth. The element is important in life because it is a significant component of proteins and DNA. It is a very slow cycling process compared to others like nitrogen, carbon and water cycles.
Explanation:
The geological uplifting of this mineral mainly occurs through the volcanic eruption and formation of new crust in divergent boundaries of tectonic plates. This inorganic phosphorus is taken up by autotrophs - such as plants and bacteria- after weathering of the rocks to release the mineral. It is usually taken up as phosphates (PO₄³⁻) and assimilated into organic phosphorus in amino acids and DNA.
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For more on biogeochemical cycling of nutrient check out;
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Flower color is red; AA. flower color is blue
The answer is; right atrium, pulmonary arteries, pulmonary veins, left ventricle, aorta
Deoxygenated blood from the tissues flows into the heart through the vena cava vein. The blood is pumped by the right ventricle to the lungs through the pulmonary artery. The blood gets oxygenated in the lungs and flows back to the heart through the pulmonary vein. The heart (left ventricle) then pumps the oxygenated blood to tissues through the aorta.
Answer:
New species develop when:
D. Diverging species no longer recognize one another as potential mates.
Explanation:
- The development of two or more new species from ancestral population is known as speciation.
- Speciation can occur when the population divides into groups and each group occupies a different habitat (geographic isolation) or when the members of the same population do not find one another as potential mate and do not interbreed (reproductive isolation mechanism).
- The three types are: Allopatric speciation.
Sympatric speciation.
Parapatric speciation.
- Allopatric speciation occurs when genetic divergence is allowed through geographic isolation.
- Sympatric speciation does not involve geographic isolation but involves reproductive isolation mechanisms.
- In Parapatric speciation, a population enters a new niche or habitat within the range of parent species and then evolution of reproductive isolation mechanism occurs.
