While it is clear that the death of specific cells within a multicellular organism could increase inclusive fitness (e.g., during development), the origin of PCD in unicellular organisms is less obvious. Kin selection has been shown to help maintain instances of PCD in existing popula...
Classical music aims to evolve, build audiences without aliening old guard A) In 1913, classical music sparked a riot in Paris. Igor Stravinsky was introducing his revolutionary “Rite of Spring” ballet to the world, with its discordant melodies and unorthodox choreography (编舞), and the pur...
a change in a physical trait of an individual during its lifetime. b. a change in the frequency of alleles in a population over time. c. survival of the fittest. d. a change in the frequency of a physical trait in a populatio...
The total lifetime of the Sun is close to 10 billion years. Estimate the lifetime of a star three times as massive as the Sun, and explain why it is likely or unlikely for complex, multi-cellular life to be able to evolve on a planet in the habitable zone When will people li...
Charles Darwin, a passionate evolutionary biologist, and author of ‘The origins of species’ (1859) might have been among the first to note that organisms, much like the human organisms with all their guts and brains, would never fail to either adapt or die. It is simply a question of ...
As all these living organisms are dependent on each other in some way, biodiversity is desirable. Any loss to the planet is actually a loss for mankind as well, and it is our responsibility to try and save Earth’s biodiversity.Biodiversity has a vital role to play in...
Toronto, both from your home and from any basement, office, cottage, and some other substitute space. With the ability and quality that reevaluate their professionals with more than 15 years doing remodeling, it is possible to be certain and confident of the quality and assurance in all your...
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