(1) Above 1500u00d4u00f6u00bcu00d4u00fbu00e6F water vapor and the metal combine to form the oxide and evolve hydrogen.

(2) The chemical reactions by which they do this evolve gas, which is why peas and beans cause wind.

(3) Over millions of years these organisms would develop, adapt and evolve into newly created organisms.

(4) Not one word is said about how single cells could evolve into a multiple-celled organism.

(5) Dimerization is usually required for proteins to evolve oligomeric proteins.

(6) Each school must evolve its own way of working

(7) The linkage between genes and behaviour is clear, but it did not evolve by natural selection.

(8) What started as a very limited levy has evolved into the federal government's main source of cash.

(9) Trains on railways such as these moved slowly, and the footpaths alongside them gradually evolved into roads.

(10) Apparently the species evolved from Homo erectus, who somehow managed to reach Flores, perhaps by rafting.

(11) Deference to the prime minister has evolved into properly aggressive reporting.

(12) It could have evolved into a prize sometimes given to mathematicians and sometimes computer scientists.

(13) The theory of evolution is seen as tracing the historical evolvement of those structures or competencies that formal pragmatics describes as universal features of language use.

(14) I believe that such tolerances and freedoms are the natural evolvement of successful free-market advances.

(15) His son Charles joined the firm at the age of 13 and the business gradually evolved into providing pet and garden supplies.

(16) Evolutionary biologists call this phenomenon, in which an organism evolves just to stay in place, the Red Queen hypothesis.

(17) It looks like the playing field has evolved into a mine field, and the big boys encourage the new kids to play hopscotch there.

(18) By convention, the change in heat is positive when the system absorbs energy and negative when the system evolves heat.

(19) Infrastructure built on evolvable formats will always be partially incomplete, partially wrong and ultimately better designed than its competition.

(20) If all organisms evolved from a single common ancestor, what do these groups actually represent?