1. A mutation is a "Change" <span>in the nucleotide sequence of a gene within the DNA molecule.
2.</span><span>Chemicals that cause a mutation are known as "Mutagens"
Hope this helps!</span>
The male reproductive cells are in the scrotum on the males body.
Wastes and excess water are transported outside the cell by contractile vacuoles. ... Classification: Eukaryota (organisms with nucleated cells), Kingdom Protista (flagellates, amoebae, algae, and parasitic protists), Phylum Protozoa (single-celled organisms), Class Sarcodina (having pseudopods).
