Answer:
cis-3,4-dimethyl-3-hexene
Explanation: since the substituents are on same side, it call cis. Followed by the name
B , Biosphere is a special shell of the Earth inhabited by living organisms
It's D because a dominant Gene will take over a recessive
<span>density is how much matter is packed into one area. so the higher density the more likely it is to be heavier. for example, cork has a very low density and iron has a higher density.</span>