<span>Helium has an atomic number of two, so its outer energy level is full. Helium is considered INERT.
Have a great day!</span>
The digestive enzymes can only recognize the structure of the substrate but can not recognize whether it is inside cell or from outside. So if there is no membrane, the enzyme will digest the structure of its own.
Some advantages
<span><span>Produce relatively low amounts of carbon dioxide (CO2).</span>Well-developed engineering knowledge. Single plant can generate high amount of power.</span>
Some disadvantages
<span>Radioactive waste, an extremely dangerous byproduct, needs careful monitoring for thousands of years. Accidents may create havoc on a large scale.<span>Uranium, the primary energy source, is estimated to be available only for the next 30 to 60 years without the use of high-efficiency breeder reactors.</span></span>
6) humans
7) bacteria
8) caterpillars & rabbits
9) trout, and predators
10) It can be overfeeded , and everybody will die sooner or later
Below are the choices, the answer is no. 3:
1) The virus was descended from a common ancestor of bird, pig, and human flu viruses.
2) The infected individuals happened to be infected with all three virus types.
3)Related viruses can undergo genetic recombination if the RNA genomes mix andmatch during viral assembly.
4)The human was likely infected with various bacterial strains that contained all three<span>RNA viruses.</span>
