搜索结果: 1-11 共查到“生物学 shape”相关记录11条 . 查询时间(0.109 秒)
If we could rewind the tape of species evolution around the world and play it forward over hundreds of millions of years to the present day, we would see biodiversity clustering around regions of tect...
Context matters. It’s true for many facets of life, including the tiny molecular machines that perform vital functions inside our cells.
Body size, digestive systems shape ungulate foraging
body size digestive system ngulate plant
2021/8/5
Smaller-bodied ruminants forage primarily for the highest energy intake, while equids -- which tend to be larger -- choose to forage in areas close to surface water, with less attention to forage cond...
In an elegant choreography, plants take cues from their environment and channel them into forms: flowers, roots and branches. In a new paper published in Nature Communications, biologist Doris Wa...
Researchers learn how the cancer-causing stomach bacterium Helicobacter maintains its shape（图）
Researchers cancer-causing stomach bacterium Helicobacter
2020/2/20
NSF-funded scientists reporting in the journal eLife have revealed that they are closer to understanding a risk factor for stomach cancer: how the bacterium Helicobacter pylori...
Farming,Cheese,Chewing Changed Human Skull Shape（图）
Farming Cheese Chewing Human Skull Shape
2017/9/5
The advent of farming, especially dairy products, had a small but significant effect on the shape of human skulls, according to a recently published study from anthropologists at UC Davis.Put another ...
Bacteria come in all shapes and sizes — some are straight as a rod, others twist like a corkscrew. Shape plays an important role in how bacteria infiltrate and attack cells in the body.The helical sha...
Personality Changes Can Affect Fish Body Shape,Locomotion
Personality Changes Fish Body Shape Locomotion
2016/6/12
Evolutionary change in one trait can elicit evolutionary changes in other traits due to genetic correlations. This constrains the independent evolution of traits and can lead to unpredicted ecological...
Shape-shifting molecule tricks viruses into mutating themselves to death
molecule tricks viruses mutating themselves to death
2015/4/29
A newly developed spectroscopy method is helping to clarify the poorly understood molecular process by which an anti-HIV drug induces lethal mutations in the virus’ genetic material. The findings from...
Scientists characterize a new shape using rubber bands
Scientists characterize new shape rubber bands
2014/5/13
While setting out to fabricate new springs to support a cephalopod-inspired imaging project, a group of Harvard researchers stumbled upon a surprising discovery: the hemihelix, a shape rarely seen in ...
The filling law: a general framework for leaf shape diversity and its consequences on folded leaves
leaf shape diversity filling law folded leaves
2010/4/6
The leaves are packed in the buds, occupying the whole bud volume. They can do so being flat, enrolled, or folded, in different ways. This <>, underestimated before, has many consequences...