Question

levels of organization

1. a cell is the basic unit of structure and function.
2. a tissue is a group of similar cells that work together.
3. an organ is made of different tissues that work together.
4. an organ system is a group of organs that work together.
5. an organism is a complete living thing.

review questions

1. why are cells called the basic units of life?

→ becaseu they are help us live

1. how do magnification and resolution differ?

→

1. what does “division of labor” mean in multicellular organisms?

→ the process were different calls

1. pick one organelle and explain its function.

→ takes matirial from the er.

Explanation:

1. Cells are the basic units of life because they perform all life - sustaining functions such as metabolism, growth, and reproduction. They are the smallest entities that can be considered alive.
2. Magnification is the ratio of the size of an image to the actual size of the object, increasing its apparent size. Resolution is the ability to distinguish between two closely - spaced objects, determining the clarity and detail of the image.
3. In multicellular organisms, "division of labor" means that different cells, tissues, organs, and organ systems have specialized functions. For example, nerve cells transmit electrical signals, while muscle cells are responsible for movement.
4. The Golgi apparatus modifies, sorts, and packages proteins and lipids received from the endoplasmic reticulum for secretion out of the cell or for use within the cell.

Answer:

1. Because they perform all life - sustaining functions and are the smallest living entities.
2. Magnification increases apparent size, resolution determines clarity and detail.
3. Different cells, tissues, organs, and organ systems have specialized functions.
4. Golgi apparatus: modifies, sorts, and packages proteins and lipids from the ER.