What are the two levels of cellular organization?

What are the two levels of cellular organization?

Cells hold genetic material and absorb outside energy. Tissues make up the bones, nerves and connective fibers of the body. Organs work to perform specific bodily tasks, such as filtering blood. Organ systems are groups of organs that perform a specific kind of function together, such as digesting food.

What is Level 2 of the Organization of the body?

Level II: The tissue level A tissue is a structure made of many cells — usually several different kinds of cells — that performs a specific function. Tissues are divided into four categories: Connective tissue serves to support body parts and bind them together.

What is an example of the cellular level of organization?

Multicellular (many-celled) organisms have various levels of organization within them. Individual cells may perform specific functions as well as work together with other cells for the good of the entire organism. The cells become dependent on one another. Examples: blood cells, nerve cells, bone cells, etc.

What are the levels of organization from cell to organism?

The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

What are the 2 types of cells and describe how they are different?

Cells are of two types: eukaryotic, which contain a nucleus, and prokaryotic cells, which do not have a nucleus, but a nucleoid region is still present. Prokaryotes are single-celled organisms, while eukaryotes can be either single-celled or multicellular.

What cell directs the activities?

Nucleus
Nucleus The nucleus directs all of the cell’s activities, including reproduction. Mitochondria Most of the cell’s energy is produced within these rod-shaped organelles.

What are the three organizational levels?

The three organizational levels are corporate level, business level and functional level.