In any event, it pictures in a lively manner some of the types of change both vegetative and reproductive which must mark the evolution of the angiosperms from homoxylous freely flowering forerunners.

Like other types of cancer, carcinomas are abnormal cells that divide without control. They are able to spread to other parts of the body, but don't always. "Carcinoma in situ" stays in the cells ...

However, quantitative models have been developed for particular types of mutualisms (e.g ... three-quarters of all extant flowering plants (angiosperms) receive pollination services from animals ...

For as long as scientists have studied trees, we have categorized them into two types based on the sort ... further back in time and examined basal angiosperms, a group of rare and ancient ...