Large organisms need transport systems to supply all their cells with food, oxygen and other materials.Multi-cellular organisms are too big and not all of their cells have contact with the external environment. All organisms need to exchange substances with their environment - take in needed molecules and get rid of waste. A uni-cellular organism can use the processes of osmosis, diffusion and active transport to transport substances in and out of the organism, which is in this case just one cell. But as organisms increase in size, they need a specialized transport system to exchange substances between the internal environment and the external environment. Interestingly enough, osmosis and diffusion are still the important mechanisms at the cellular level.
Multi-cellular organisms are too big and not all of their cells have contact with the external environment. All organisms need to exchange substances with their environment - take in needed molecules and get rid of waste. A uni-cellular organism can use the processes of osmosis, diffusion and active transport to transport substances in and out of the organism, which is in this case just one cell. But as organisms increase in size, they need a specialized transport system to exchange substances between the internal environment and the external environment. Interestingly enough, osmosis and diffusion are still the important mechanisms at the cellular level.
No, muticellular.
No, bacteria do not have blood like more complex organisms. They do not have circulatory systems and rely on other methods, such as diffusion, to transport nutrients and gases within their cells.
Plants, specifically vascular plants, have water transport systems called xylem and phloem. These systems are responsible for transporting water, nutrients, and sugars throughout the plant. Aquatic organisms, like jellyfish and sea anemones, also have water transport systems that help with circulation.
The levels of organization of biological systems from simplest to most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, and biosphere.
Yes, a protist is a eukaryote that lacks complex organ systems. Protists are single-celled organisms that have a simple cellular structure and do not have specialized tissues or organs like more complex multicellular organisms.
No, muticellular.
No, bacteria do not have blood like more complex organisms. They do not have circulatory systems and rely on other methods, such as diffusion, to transport nutrients and gases within their cells.
Plants, specifically vascular plants, have water transport systems called xylem and phloem. These systems are responsible for transporting water, nutrients, and sugars throughout the plant. Aquatic organisms, like jellyfish and sea anemones, also have water transport systems that help with circulation.
Cells, Tissues, Organs, Organ Systems, Organisms.
Complex organisms are organisms composed of multiple organ systems with specialized functions, such as animals and plants. These organisms are made up of many cells that work together to carry out various physiological processes and respond to their environment. Complex organisms often have more sophisticated structures and behaviors compared to simple organisms.
No, not all living things are complex. Some living organisms, like bacteria and single-celled organisms, are relatively simple in structure and function compared to more complex organisms like plants and animals. Complexity in living things can vary greatly depending on the species and their evolutionary history.
Usually, complex organisms consist of many organ systems, which comprise from two or more organs, which is from two or more tissues, which comes from two or more cells working for the common function.
Complex systems biology
The levels of organization of biological systems from simplest to most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystems, and biosphere.
Multicellular organisms have 5 levels of organization ranging from simplest to most complex...cells, tissues, organs, organ systems, organisms.
Simple Organism some simple organisms are made of single cell. Others are made of many cells that are similar Complex organisms in complex organisms, cells are organized into tissues, which make up organs. Organs form organ systems.
No, not all organisms have an organ system. Simple organisms like bacteria do not have organ systems. Organ systems are more commonly found in complex multicellular organisms with specialized tissues and organs.