Hey there!
The answer to that is genes.
Genes are parts of the DNA and are the functional unit of inheritance.
Genes are the reason why a child looks like his/her parents. Genes from the parents are inherited to the child and are in the child's DNA.
Hope this helps. Have an awesome day! :)
P.S. Congrats on asking the 8 millionth question on Brainly!
Answer:
joints is a place where two bones meet
Biological Catalyst's Which are Called Enzymes
They evolved from cyanobacteria