Ancient etchings from an ancient life form Stromatolites, one of the oldest microbial life forms on earth, sculpt strange, lumpen formations out of the rock. Scientists don’t know exactly why microbes form these kind of structures. One working theory: “to build shields,” says Sauro, shown ...
Trees are one of the oldest living things on earth .They play a very important role for human’s existence. Trees are important for life as they provide food and oxygen. The importance of tree continues to increase and more benefits of trees are being discovered as their role expands to sa...
Trees are one of the oldest living things on earth. Trees are important for life as they provide food and oxygen. The importance of trees continues to increase and more benefits of trees are being discovered as their role expands to satisfy the needs created from us human beings. The forests...
What is claimed to be the oldest evidence of life on Earth yet found backs the idea that the first microbes originated around hydrothermal vents on the seafloor – but the work is already proving controversial. Explaining the origin of life is one of the biggest unclaimed prizes in...
probably the oldest fossil on Earth, a remnant of life from 3.7 billion years ago when Earth's skies were orange and its oceans green.In a newly melted part of Greenland, Australian scientists found the leftover structure from a community of microbes (微生物) that lived on an ancient ...
(五)Trees are one of the oldest living things on earth. Trees are important to life as they provide food and oxygen. The importance of trees continues to increase and more benefits of trees are being discovered as their role expands to satisfy the needs created by human beings. The trees ...
Nowadays, carbon isotopic ratios (未C) of the chemofossils in graphitic form give us definitive information.doi:10.1016/B978-0-12-812058-3.00008-9Akio MakishimaOrigins of the Earth, Moon, and Life
七选五Trees are one of the oldest living things on earth. Trees are important for life as they provide food and oxygen. The importance of tree continues to increase and more benefits of trees are being discovered as their role expands to satisfy the needs created from us human beings.The for...
1.The plant is thought to be a piece of seaweed(海草)that grew on the Earth's seafloor(海底) about 1 billion years ago. That would make this seaweed an ancestor of all green plants alive today.The seaweed is a form of green algae(水藻) called Proterocladus Antiquus. It was very ...
When we are looking at the life of a tree, we learn about that each period of life brings its own form of joy and challenge. Enjoy every minute of the life of the trees and take care of the trees!23. Put the following in the right order according to the passage.①Grow very ...