Answer:
C. Bacteria
Explanation:
An example is E. coli. In general, prokaryotic cells are those that do not have a membrane-bound nucleus.
Answer:
The correct option is formation of bone from within fibrous membranes.
Explanation:
The process of intramembranous ossification results in the production of bones from the fibrous membranes. The mesenchymal cells get differentiated into different kinds of osteoblasts. The process of intramembranous ossification occurs in the skull. In other parts where bones are to be formed by this process, the mesenchymal cells get converted into cartilage first. The cartilage will then be converted or replaced into bones.
Bones at the base of the skull and the long bones are produced by endochondral ossification.
Answer:
I believe the answer is A
Explanation:
Answer:
Option A) Simple Prokaryotes.
Explanation:
- The first life that existed on Earth was the single-celled microbes who lack a well defined nucleus and are known as Prokaryotes
- They existed on Earth for almost four billion years ago.
- In Prokaryotes "Pro" means before and "Karyon" means nucleus which means they lacked nucleus and many other cell organelles that complex structures have.
- They are single celled organism adaptive of living in earth older environment.
Result: Simple Prokaryotes was the first life on earth.
