Answer:
LYSOSOMES has three main functions the breakdown /digestion of macromolecules (carbohydrates,lipids,proteins,nucleic aicids) cell membrane repairs and responses against foreign substances such as bacteria ,viruses and other antigens
Answer:
the heart is the main function
Answer:
Freshwater is limited, while salt water is plentiful
Explanation:
Water is considered a renewable resource because it goes through the water cycle over and over again. Freshwater however is accountable for only 3% of Earth's water. Humans use around 70% of that water for agriculture and the other 30% for other purposes, such as consumption. Though it's considered renewable because it goes through the water cycle, this also causes it to be limited because of evaporation. Every year, due to evaporation, the Earth loses about 9,467 cubic meters of water every year. Though this seems like alot, on a bigger scale, if you account for the Earth's oceans, it is quite a small amount. It would take millions of years before evaporation caused an international drought.
Answer:
Only about 50 percent of the CO2 from human emissions remains in the atmosphere. The remainder is approximately equally split between uptake into the land biosphere and into the ocean.
Explanation:
Mercury is a barren planet with little atmosphere. In many regards it is similar to our own moon. However, it is also very close to the Sun, so humans will have to set up bases in craters or near the Poles to avoid being blinded.