It is rare for soft tissue to become a fossil because the soft parts can be eaten by other animals. Hope this helps!
Answer:
Gap junctions
Explanation:
They allow adjacent cells to communicate. These channels form a close connection between cytoplasm because small molecules such as ions are able to pass through from cell to cell. Examples of cells with gap junctions are cells in heart muscle tissues. Gap junctions are found in animal cells and are akin to plasmodesmata in plant.
Note:
Lo siento, mi espanol es limitado. Pero puedes usar Google Translate.
Answer:
The characteristics mitochondria and chloroplasts share with prokaryotes include their own DNA, their own ribosomes, which means the ability to produce their own protein, and the ability to reproduce on their own. This all supports a theory known as the theory of endosymbiosis.
It is important so that the diffusion distance is shortened so gas exchange occurs more efficient.
As you may already know, lungs are used for gas exchange, and the alveoli is the surface for gas exchange. Gas exchange is where carbon dioxide from the blood capillaries (on the alveoli) are diffused into the alveoli, while the new oxygen that we breathed in are diffused to the capillaries.
Since the whole has exchange process relays on diffusion, so diffusion must happened fast in order to increase the efficiency. Therefore, the alveoli is only one cell thick so carbon dioxide and oxygen has a shorter distance to diffuse through so more of these gas can be exchanged.
Answer:
So where does the mass come from? The mass of a tree is primarily carbon. The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.
Explanation:
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