Answer:
Different ecosystems have different levels of consumers, all end with one top consumer. Most energy is stored in plants and oxygen, and as the consumers eat these plants they take up a small amount of energy. This energy in the herbivores and omnivores is then consumed by carnivores.
Answer:
Agriculture is the main source of national income for most developing countries. However, for the developed countries, agriculture contributes a smaller per cent age to their national income. Agricultural sector provides fodder for domestic animals. Cow provides people with milk which is a form of protective food.
plss make me brainlist
B cell activation occurs in the secondary lymphoid organs including the spleen and lymph nodes. After B cells mature in the bone marrow, they migrate through the blood to s<span>econdary lymphoid organs</span><span>, which receive a constant supply of antigen through circulating </span>lymph.
To further learn about this topic, see attached file.
Silicon dioxide is a covalent compound which is polyatomic and has three atoms in each molecule.i think this is write
