Oxygen.
Oxygen was fatal when organisms started using photosynthesis, this event was known as the Great Oxidation Event.
One should consider: proper clothing and shoes-so not to get injured. Knowledge of equipment and activity—one should know how to use all equipment and know how to play the games/activity so not to hurt themselves or others. Proper hydration and nutrition before hand-so not to get dehydrated or dizzy or sick and safety og equipment and location-check for broken items and discard, check environment for hills, holes, sticks, traffic, etc.
Its:
1. Evaporation
2. Transpiration
Only one strand will be transcribed and the other servers as a coding stand. ... Without it, the single strand DNA with exposed nitrogenous bases is very unstable so two strands actually stabilise the structure.
<span>B.The existence of vestigial structures
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Vestigial structures have been used for long by evolutionists to support the theory of evolution. These organs are believed to have been in use in the past lives but as the species adapts to new forms of life and lifestyle,the vestige organs becomes obsolete,but are not removed by the body. An example of vestige organs in human being are the appendix,tail bone,and mammalian grands in men.
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