Answer to Question 1
Earth's atmosphere formed as hot gases escaped from deep within the planet. This early atmosphere included gases such as carbon dioxide, methane, and ammonia (note that molecular oxygen was absent in the atmosphere until about 2.2 billion years ago). Experiments have shown that organic molecules necessary for life could have formed as the dissolved compounds in the atmosphere were exposed to light, heat, and electrical sparks. These energized mixtures can produce simple sugars and amino acids, proteins and nucleotides-all biologically important molecules.
Answer to Question 2
True
Classification of life histories based on juvenile survival, fecundity, and age at reproductive matu
Models for the evolution of hunting by males
Life cycle of Plasmodium vivax
Jan de Heem, Still Life with Lobster.
Among the health benefits of marriage is a longer life.
Early growth of corn (Zea mays), a typical monocot.