Cells in different organs, such as the brain and the heart, have different functions because
a. the same dna molecule is expressed differently.
b. there is a mutation in the gene.
c. the dna in the cells is different.
d. one has dna and the other has rna.

Galaxy whose shape seems different follow no set pattern are classified as

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

Which example would the nurse consider to be a part of systems thinking theory?