The right option is; c. a salinity of less than 1%
Freshwater biomes have a salinity of less than 1%
The freshwater biome is a large community of plant and animals that live in water bodies with a salinity of less than 1%. Fresh water biomes include streams, rivers, ponds, lakes, and some wetlands. The fresh water biomes cover about 20% of the earth and they contain several species of fish and animals such as frogs, crocodiles and turtles.
The correct answer is: b. phosphorus and nitrogen
Plants use organic matter nutrients that produce by their own and thus we classified them as autotrophs (or self-feeders). But, they also require inorganic nutrients such as nitrogen and phosphorus and often one of them is special nutrient needed for growth and because of that called the limiting nutrient.
The fertilizers that people apply to farm fields, gardens and lawns contain phosphorus and nitrogen.
Well, the DNA is sort of like a code that tells all of the other cells and structures what to do, when to grow, reproduce, split, stuff like that. So, I would say the most likely asnwer would be C, because it is not only responsible for osmosis, it is not formed by RNA, RNA is a split DNA strand, and it is a structure that sends signals to other parts of cells. So the most likely answer would be C>
