Answer:
High altitude – as altitude increases, the availability of oxygen decreases, making the air thinner and drier. The dryness can cause the nose to bleed.
Sponge body contains cells but not perform work together!!
But they are made up of two embroyonal layer as endoderm and ectoderm !!
so thee most appropriate answer is A !!
Gene transfer or genetic engineering involves the <span>transfer of <span>genes </span></span>from<span> one species</span><span> of organism to </span><span>another </span>species<span>, i.e.from a </span><span>donor </span><span>into a </span><span>recipient </span><span>organism. It is seen by some as a simple extension of other </span><span>biotechnological </span>processes, whereas to others it is considered as a development with much more sinister implications. In fact there has been pressure to use the term biotechnology, which has gained some public acceptance, to cover both. I hope my answer has come to your help. God bless and have a nice day ahead!