Once this initial energy is added, the wave travels through the medium until all its energy is transferred. In contrast, electromagnetic waves require no medium, but can still travel through one.
Answer:
if a players natural resistance to an unbalanced force is called unbalanced force
Answer:
It is called the Blade
Explanation:
The blade is the broad part of a leaf that holds the green food making cells.
Answer: Some substances pass through small holes in the surface cell membrane. This is called diffusion and does not require the cell to expend energy. Oxygen gets into a cell and carbon dioxide (the product of respiration reactions) leaves it this way. ... small particles (ions or molecules) diffuse more quickly than large ones.
Explanation:
Answer:
Life is suggested to have started in an aquatic ecosystem - the ocean.
Explanation:
For decades, life has been suggested to have started in an aquatic environment due to evidence of ancient fossils and chemical studies.
Recently, scientists have been able to narrow these suggestions to state that life originated in a deep sea hydrothermal vent. This hypothesis arised due to the presence of chemicals that are thought to have produced the chemical reactions that are necessary for the evolution of life.
The first living forms on Earth were single-celled micro-organisms called stromatolites - <em>rock-like structures formed by cyanobacteria</em> - that appeared around four billion years ago. Interestingly, we are still able to find these ancient creatures but only in specific regions of the world such as Cuatro Cienegas, Coahuila in Mexico.
