Sentences with phrase «dominated by organisms»

Not exact matches

The last two centuries were dominated by economic questions; the next century will be the age of ecology, in which the organism of the earth will become the all - determining factor and will have to be taken into consideration by everyone.

Water that is 1.5 to 2.6 billion years old is a time capsule from the Precambrian — a period when life was dominated by single - celled organisms.

«In responding to those rapid changes in climate, organisms will encounter a highly fragmented landscape that is dominated by a broad range of human influences,» the study said.

We have investigated the response of a coral reef community dominated by scleractinian corals, but also including other calcifying organisms such as calcareous algae, crustaceans, gastropods and echinoderms, and kept in an open - top mesocosm [note: a «mesocosm» is an aquarium].

We have investigated the response of a coral reef community dominated by scleractinian corals, but also including other calcifying organisms such as calcareous algae, crustaceans, gastropods and echinoderms, and kept in an open - top mesocosm.

Three and a half billion years ago our planet was quite different and Earth's earliest biosphere was dominated by microbial communities - complex multicellular organisms were not to evolve for quite some time, only arriving on the scene about 600 million years ago.