In a reproducing cell , the dna is found in the structures known as 1. Lysosomes
2. Chromosomes
3. Vacuoles
4. Ribosomes

How does the nervous system affect the excretory system?

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species

The most effective way to provide children with safety messages is to