Was the amphibian the first organism on land? Which kinds of organisms use photosynthesis? Benthic organisms may be found where? The life forms of the biosphere are located in the Who was the first to observe microorganisms with a microscope?
The Earth is thought to be over 4.5 billion years old. The first life that appeared on Earth was about 3.77 billion years ago. We cannot definitively say what the first organism was; our educated guess is that it must have been a prokaryote....
They would set down the records."First of all we can look at previous rccords, to find out4dis if a trce was growing there at a set date. Then we look of a at paintings and artwork, to scc if that tree was A. Pcople would forget the right present. And old survey maps quite ...
Proving this can involve some traditional detective work, as he explains:“First of all we can look at previous records, to find out if a tree was growing there at a set date. Then we look at paintings and artwork, to see if that tree was present. And old survey maps quite clearly ...
selective role of the environment in shaping and maintaining the behavior of the individual is only beginning to be recognized and studied.⑨As the interaction between organism and environment has come to be understood, however, effects once assigned to states of mind, feelings, and traits are ...
And this fifth kingdom was sort of anything that doesn’t fit in the first four kingdom, which upset some people. 这个第五界是不属于前四个界的生物的,这使得一些人沮丧。 And then there was a question of viruses. 还有一个问题就是病毒。
The French physiologist, Claude Bernard, considered to be the father of modern experimental physiology, was the first to take notice of this maintenance of the internal environment. Later, the American physiologist, Walter B. Cannon coined the term homeostasis. Although homeostasis implies constancy, ...
What does the word " ecology" mean? It was invented by Ernst Hacckel, a German biologist. He joined two Greek words: oikos, meaning "house", and logie,meaning "the study of". Together they mean "the study of the house". The "house" Haeckel had in mind is our planet, Earth. Earth...
If it's defined by having the biggest brain,then sperm whales(抹香鲸)—whose brain is 20 pounds —would be the brightest creatures on Earth.But,more likely,it's how a brain is wired.Viewed in this way,intelligence is what gives an organism the best chance to survive in an environment....
The organism A, B and C can obtain their food in three different ways. Organsim A derives its food from the body of another living organism which is called its, D without killing it. The organism B takes in the solid food by the process of ingestion, digests a part of this food and...