Nucleic acids contain the same elements as proteins: carbon, hydrogen, oxygen, nitrogen; plus phosphorous
Solar radiation is the fundamental energy driving our climate system, and nearly all climatic and biologic processes on Earth are dependent on solar input. Energy from the sun is essential for many processes on Earth including warming of the surface, evaporation, photosynthesis and atmospheric circulation.
Answer:
Organisms that are in existence to day must have evolved from Ancestral species million of years ago.
Natural selection is the main driving mechanisms for evolution of new species.
Explanation:
Genreally organisms produce more
offsprings than they can provide for in a particular environment.
Because of thre limited resources available due to overpopulation, organisms must develop certain characteris or traits to survive.
Offisprings that survived must have inherited these traits from thier parents, while those without these traits will die.
Natural selection must be the mechanism for the selected organisms to withstand selection pressure of limited resources.
This is survival of the fittests by natural selection.
Large central vacuoles, chloroplasts, and cell walls are only found in plant cells.
Large central vacuoles store nutrients and waste products, but they also maintain the plants' structures.
Cell walls also maintain structure and rigidity.
Chloroplasts are used in the process of photosynthesis, which only occurs in plants.
A and E is the answer for the two of them