Answer:
5.0 × 10^8 cells.
Explanation:
Mass of DNA = 2 × 10^-12 g/cell
Mass of DNA to be isolated = 0.001 g
No of cells = 0.001/2 × 10^-12
= 5.0 × 10^8 cells.
It is a true fact that the loss of an organism at the bottom of a food chain negatively impacts all organisms in the chain.
Explanation:
This is because if the below organism which is constantly interchanged with plants, no herbivores would eat those plants, thus, will also die, which will also determine that the next consumers will have trifle to eat which will also happen to their deaths. So, yes. It concerns it negatively. And very negatively.
C) DNA is made of 4 types of nucleotides
Not all organisms have 46 chromosomes (23 homologous pairs). Not all organisms have nuclei (e.g. bacteria do not have nucleus)
Amino acids are molecules that have a carboxylic acid group and an
amine, attached to a specific carbon atom known as the α carbon. There are 20
amino acids, and they are different from each other, in the sense that each has
a different side chain, known as the R-group and this R-group is attached to
the α carbon.
