Index Fossils of plant origin are very rare.
Earth could not have supported the lives or humans and other living things. There was no oxygen in the atmosphere, and Earth's surface was extremely hot
Answer:
Cells with similar structures and a common purpose that are organized form a tissue (option D).
Explanation:
Biological tissues are structures originated by the grouping of differentiated cells, which are organized and distributed in such a way that they can fulfill a function in a coordinated way. A characteristic of tissues is that all the cells that constitute them have the same embryonic origin.
An example of a tissue is nervous tissue, formed by neurons, specialized cells that when united form it and fulfill the same function.
The functions of cells are mainly multiplication, development and differentiation, in addition to their ability to group together to form tissues.
The other options are not correct because:
<em>A. </em><u><em>Organs</em></u><em> are formed from differentiated tissue.</em>
<em> B and C. </em><em><u>Digestion and circulation</u></em><em> are functions that depend on the organs of the digestive and circulatory systems, respectively.</em>