Question

What are the four levels of organism structure? (Hierarchical assembly)

a) Organs, Tissues, Cells, Organelles
b) Organisms, Populations, Communities, Ecosystems
c) Molecules, Cells, Tissues, Organs
d) Kingdoms, Phyla, Classes, Orders

Answer 1

The four levels of organism structure in ascending order of complexity are molecules, cells, tissues, and organs. At ecological scales, the hierarchical levels are organisms, communities, ecosystems, and the biosphere. The correct option is C.

Step-by-step explanation:

The hierarchical assembly of organism structure can be represented in several levels of increasing complexity. The four levels of organization in the context of an individual organism are molecules, cells, tissues, and organs.

Each level represents an increased degree of complexity where molecules combine to form cells, which in turn come together to form tissues. These tissues arrange to create organs, which are needed for various bodily functions.

Expanding beyond individual organisms, when observing ecological systems, the hierarchy includes organisms, communities, ecosystems, and the biosphere. At each successive level, from organisms to the biosphere, biological organization becomes more complex and encompasses greater interactions and processes.