Explanation:
electrovalent bond covers single bond.
Covalent bond covers double or more bonds.
In mammals and amphibians? An enucleated egg, a donor nucleus (preferably from an early developmental stage such as a blastocyst), and a means to stimulate the egg to be activated as if it had just been fertilized (poking with a needle is sometimes enough)
Or cloning into a vector as in at the level of DNA?
A vector with positve and negative selection markers (like antibiotic resistance and drug susceptibility), an insert, DNA ligase and restriction enzymes, buffer for restriction and ligation. Or if you are doing cloning by PCR, then you need primers, template, nucleotides, RNA pol like Taq polymerase etc.
D is your answer. nearly everything has atoms so it cant be that
It is false because electrons have no mass.
Because all atoms are made from the same particles which are protons, neutrons, and electrons.
Hope this helped!!!
