The answer is awhich is that the resource could be depleted quickly
Cyanobacteria were important for Earth's early atmosphere because they produce oxygen.
<u>Explanation</u>:
Cyanobacteria is a Phylum consists of the free living bacteria and endosymbiosis. Cyanobacteria is also called blue green algae which obtain energy through oxygenic photosynthesis and releases Oxygen gas in the atmosphere. Cyanobacteria is responsible for the early oxygen production in environment which changed the early reducing atmosphere of the earth into the oxidizing atmosphere that causes the event of great oxygenation that is rusting of the earth. During this period most of the anaerobes extinct or evolve to live as a parasite or symbol on in other hosts.
Answer: a. True
Explanation:
This is an important definition in health and safety courses.
Intramembranous Ossification is the formation of bone from within fibrous membranes.
The other method of bone formation, Endochondral Ossification, is the formation of bone from preexisting hyaline cartilage models.
They occur in terrestrial ecosystems.
