Answer:
i don't speak your language
Explanation:
Answer:
To find the most recent common ancestor of a set of taxa on a phylogeny tree, follow each taxon's lineage back in time (towards the base of the tree) until all the lineages meet up. That node represents their most recent common ancestor.
Explanation:
Answer:
They help to stop harmful germs from entering the body
Explanation:
- The skin can prevent bacteria and microorganisms from entering the body (unless it is damaged)
- Mucous membranes line the mouth and nose and are coated with secretions that fight microorganisms and harmful bacteria
- Tears help to clear debris from the eye to prevent infection