"Who could imagine reptiles the size of a bus, or the bizarre plants of Coal Age tropical swamps, or the strange animals of the Burgess Shale? Who could have envisioned vast extinction events, wiping out nearly all the species living in our oceans? – yet it happened, more than o...
How far back do fossils from the Burgess Shale date? a) 50 million years ago b) 130 million years ago c) 320 million years ago d) 410 million years ago e) 540 million years ago Which Earth sphere causes the movement of soils by the wind? a. Geosphere b. Hydrosphere c. Cryosphere ...
businesses and every other place where "juice" is needed. But the typical person balks at learning the finer points of electrical power delivery, perhaps because the whole process seems cloaked in danger. Children
There is an organism in the fossil record however, that is extraordinarily similar. It isAysheaiafrom the Burgess Shale (dated at 530 million years old). The difference is thatAysheaiawas apparently marine, whereasPeripatusand all living onychophorans are terrestrial. Nevertheless, Gould quotes G...
What are the predominant types of organisms found in the Burgess Shale? a. fish b. soft-bodied invertebrates c. dinosaurs d. amphibians e. mammals What are sessile invertebrates that lack a nervous system called? What are some vertebrate adaptions under phylum Chordata? What is ...
This composition is somewhat unusual for marine shale, and may indicate a volcanic origin for some of the material. The black siltstones show more variability in REE composition, suggesting a different origin of the material or the presence of depositional or diagenetic overprinting. Most likely ...
In the preceding chapter it has been shown how the Principle of Optimal Design might be applied to problems of biological structure. Such studies are obvi... S Gould,J Gould - Springer US 被引量: 2929发表: 1985年 Wonderful life:the Burgess Shale and the nature of history In the preceding...
Macro- and microfossils of the Mount Cap Formation (Early and Middle Cambrian, northwest territories) SUMMARY The Early--Middle Cambrian Mount Cap Formation, NWT, hosts a diverse range of exceptionally preserved fossils. Like the celebrated Burgess Shale of... THP Harvey,NJ Butterfield - 《...
A major caveat we still face today is the fact that so far no specific inhibitors of non-G12C mutations have entered clinical trials. In NSCLC, these mutations represent more than 50% of all KRAS mutations. A potential first-in-class inhibitor of KRAS(G12D), MRTX-1133, is currently in...
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