If 15kj heat energy is require to raise the temperature of a substance of mass 2kg through 20°C . Calculate the specific heat capacity of that substance.

What kind of enegia produces the mixture of bicarbonate and vinegar  chemical producetion

How is it possible that phylogenies based on sequences from nuclear genomes and organellar genomes (i.e., chloroplasts and mitochondria) from the same group of species yield phylogenetic trees with different branching orders?   answer :   the genome of the endosymbiont is more closely related to members of the group in which it originally evolved, while the nuclear genome of the engulfing organism has its own evolutionary trajectory.