Answer:
A mixture is made up of more than one element while a pure substance is made up of one type of atom.
Explanation:
The archaeopteryx more recently shared a common ancestor w the OTHER DINOSAURS (FIRST BIRD)
Answer:
The phylum of mollusks includes more than 50000 known species, found in freshwater ... Echinoderms have a water vascular system originally used to collect and ... by expanding or contracting their rows of tube feet in a particular sequence.
Explanation:
true
Like bacteria, fungi play an essential role in ecosystems because they are decomposers and participate in the cycling of nutrients by breaking down organic and inorganic materials to simple molecules. Fungi often interact with other organisms, forming beneficial or mutualistic associations.