on one hand, a great flood of new molecular characters in the form of sequences is now available, whereas on the other hand, there appears to be a major extinction event induced by human activity, the result of which is that information about species, many of them as-yet unknown, is be...
The successful colonization of new habitats has played a fundamental role during the evolution of life. Salinity is one of the strongest barriers for organisms to cross, which has resulted in the evolution of distinct marine and non-marine (including bot
Where across the tree of life do we see cell-in-cell phenomena? Are they associated with a ‘selfish’ phenomenon like cancer? Were cell-in-cell phenomena required for, or just incidental to, the transition to obligate multicellularity? In this review, we focus on the role of cell-in-...
The introduction of the many weedy plants we see commonly in North and South America was initiated at this time. Together, these events all contributed “to a swift ongoing radical reorganization of life on earth without geological precedent” (Lewis and Maslin, 2015), making the early 1600s ...
A child waters a tree at Wuzhong Village in Qiaoxi District of Xingtai City, north China's Hebei Province, March 11, 2019. Students from Guoshoujing Primary School took part in a tree-planting activity to greet the upcoming Tree Planting Day, also known as Arbor Day, which falls on ...
Each class opens the memory box of dream time, and the representatives of each class express their opinions on the six-year primary school life and the future life. 孕育新梦想,共筑新时代——李书老师收集学生希望明信片。Nurturing new dreams and building a new era together.---Mr. Li Shu coll...
Xi told students how to plant trees and enquired about their study and daily life. He asked them how old their parents were, whether biology lessons were taught in primary school, how much knowledge they had about plants, how much homework and extracurricular tutoring they had now. He also ...
Most tree species have bark that is unique in structure and appearance; in fact, many trees can be identified by the characteristics of their bark alone. In some species the bark looks similar throughout the life of the plant, while in others there are dramatic changes with age. The term ...
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B.Forests are to blame for the reduction of trees.C.Forests are decreasing as a result of human activity.D.Pycnandra acuminata is under the protection of people.【4】In which section of a magazine is this next most likely to appearA.Bacteria and disease. B.Health and life.C.Fashion and...