Search results
Results from the WOW.Com Content Network
Heterospory is the production of spores of two different sizes and sexes by the sporophytes of land plants. The smaller of these, the microspore , is male and the larger megaspore is female. Heterospory evolved during the Devonian period from isospory independently in several plant groups: the clubmosses , the ferns including the arborescent ...
Heterospory evolve independently and convergently several times in different plant groups. The herbaceous Lycopodiales of today are homosporous, but their extinct arborescent relatives such as Lepidodendron were heterosporous. Bateman and DiMichele in the title of an influential paper described it as "the most iterative key innovation in the ...
The importance of stone tools, circa 2.5 million years ago, is considered fundamental in the human development in the hunting hypothesis. [citation needed]Primatologist, Richard Wrangham, theorizes that the control of fire by early humans and the associated development of cooking was the spark that radically changed human evolution. [2]
Blacksmith at work, Nuremberg c. 1606 The anthropology of technology (AoT) is a unique, diverse, and growing field of study that bears much in common with kindred developments in the sociology and history of technology: first, a growing refusal to view the role of technology in human societies as the irreversible and predetermined consequence of a given technology's putative "inner logic"; and ...
Science, technology, society and environment (STSE) education, originates from the science technology and society (STS) movement in science education. This is an outlook on science education that emphasizes the teaching of scientific and technological developments in their cultural, economic, social and political contexts.
Interspecies design is characterized by the participation of more than one species in design activities and the use of design outcomes by multiple species. This concept extends to all design practices that could potentially involve multiple species, making it a broad and inclusive field.
The human niche or ecological polis of human society, as it was known historically, has created entirely new arrangements of ecosystems as we convert matter into technology. Human ecology has created anthropogenic biomes (called anthromes ). [ 51 ]
Social construction of technology (SCOT) is a theory within the field of science and technology studies. Advocates of SCOT—that is, social constructivists—argue that technology does not determine human action, but that rather, human action shapes technology. They also argue that the ways a technology is used cannot be understood without ...