Other combinations of the atoms form the four bases: thymine (T), adenine (A), cytosine (C), and guanine (G). These bases are the rungs of the DNA ladder. It also takes two bases to form a rung, one for each side of the ladder ! I hope this helps .
It is the nuclear Power plant because the nuclear plant releases energy from fission from uranium atoms splitting the nucleus. This releases radiation and not too much greenhouse gases unlike its fossil fuel counterparts
Cell membrane would be the answer. because you said human cell, cellular membrane aka phospholipid bilayer is the answer
They need to cope with changing seasons and be able to withstand cold winters and hot summers
Hunt for food, gather resources, protecc, and attacc
