4.6 million years ago the earth had less green house gasses so the atmosphere was cooler rather than hotter.
Answer: true
Explanation:
Only the mRNA made from the DNA takes part in the protein synthesis
Answer:
Cellulose
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Answer:
15 percent
Explanation:
Lymphatic vessels recover about 15 percent of the fluid filtered by capillaries. In addition, these vessels contain white blood cells that fight infections.
Diffusion is the movement of molecules down a concentration gradient from a region of high concentration to a region of low concentration until equilibrium is reached.
The rate (speed) of diffusion depends on:
1) concentration gradient (the more molecules there are, the faster the distribution ; the more crowded the molecules are, they distribute more rapidly).
2) size of the molecules (smaller substances diffuse faster)
3) chemical composition (molecules that can easily dissolve in the bilipid cell membrane can diffuse faster).
