Anything that can be seen, touched, tasted, smelled or heard. it might also involve the sense of proprioception, such as the movement of the arms and legs or the change in position of the body in relation to objects in the environment .
ex - A car drives past with the window rolled down and the music blasting, Another would be , A duck splashes in a nearby pondd .
- Hope this helps
Restriction enzymes<span>, also known as </span>restriction endonucleases<span>, are </span>enzymes<span> that cut a DNA molecule at a particular place. They are essential tools for recombinant DNA technology. The </span>enzyme<span> "scans" a DNA molecule, looking for a particular sequence, usually of four to six nucleotides.</span>
It's either 3.5 or 1.2
There would be more evidence spread out through space to be noticed by scientists and it seems like a stretch to go as far back as 4 billion years ago.
(I mean really? That much before the DINOSOURS died? I don't think so)
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Hope this helps
Miri
