Question

amoeba sisters - characteristics of life

1. what are living organisms made of?
2. what does unicellular mean?
3. what does multicellular mean?
4. organisms can be made of many _, which could be arranged into _, which can make up _. organs can be part of an _.
5. what is homeostasis?
6. give 2 examples of maintaining homeostasis.

Explanation:

1. Living organisms are made of cells. Cells are the basic unit of life.
2. Unicellular means an organism is made up of a single cell.
3. Multicellular means an organism is made up of many cells.
4. Organisms can be made of many cells, which could be arranged into tissues, which can make up organs. Organs can be part of an organ - system.
5. Homeostasis is the ability of an organism or system to maintain a relatively stable internal environment despite changes in external conditions.
6. Examples of maintaining homeostasis include the body regulating body temperature (sweating when hot, shivering when cold) and the regulation of blood glucose levels (insulin and glucagon working to keep glucose in a normal range).

Answer:

1. Cells
2. An organism made of a single cell
3. An organism made of many cells
4. Cells; Tissues; Organs; Organ - system
5. The ability to maintain a relatively stable internal environment despite external changes
6. Body temperature regulation (sweating/shivering); Blood glucose level regulation (insulin/glucagon action)