Answer:
Because no herbivores would want to eat it, and it could ward most predators away easier.
Answer:
Energy Food energy is defined as the energy released from carbohydrates, fats, proteins, and other organic compounds.
Explanation:
Russia's population density is 8.4 people per square kilometre (22 per square mile), making it one of the most sparsely populated countries in the world.
Answer:
Plants must have evolved in a manner where they require less water and nutrients as these two were the only limiting factor and carbon dioxide was in abundance
Explanation:
Some 400,000 years ago, the concentration of CO2 was very high and was near to 1000 ppm. At this high concentration of CO2 the photosynthetic activity of plants becomes very high and thus since 400,000 years ago plants could have evolved in an uncontrolled manner but this does not happened. So the reason behind this is limitation in terms of soil and its constituent’s nutrients availability and also limited supply of water.
Therefore, if plants would have evolved themselves in a manner where they require less water and nutrients then they would have grown limitless.
Answer:
Most protists are unicellular. You may be wondering why those protists are not classified in the Archaebacteria or Eubacteria kingdoms. It is because, unlike bacteria, protists are complex cells.
Also:
Among these three main types of archaea are some subtypes, which include: Methanogens — archaeans that produce methane gas as a waste product of their "digestion," or process of making energy. Halophiles — those archaeans that live in salty environments.
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