The four characteristics of a mineral are:
1. Cleavage- the way it breaks, whether flat or roughly.
2. Luster- the way light reflects off of it, i.e. pearly, shiny, etc.
3. Streak- the color that its powder is
4. Hardness, for example, diamond is the hardest mineral, this is usually measured on the Mohs scale.
Processes that are most important to human life are oxygen, required for cellular respiration, and glucose, a form of sugar that releases energy during cellular respiration.
Answer:
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It's a pic of 4 ..genetic engineering.. as the selected part of a specific DNA is used for some research !
The length of telomeres indicates aging as they shorten over time
