Scientific Inquiry and Cells
A unicellular organism is made of only one cell
Unicellular
Levels that become increasingly complex, from cells at the most basic level, to tissues, organs, organ systems, and the whole organism itself.
Hierarchical Organization of Multicellular Organisms
The organs that take in food and liquids and break them down into substances that the body can use for energy, growth, and tissue repair.
Digestive System
Your body's central framework. It consists of bones and connective tissue, including cartilage, tendons, and ligaments.
What is the Skeletal System?
A state of balance among all the body systems needed for the body to survive and function correctly.
Homeostasis
an organism composed of many cells, which are to varying degrees integrated and independent.
Multicellular
This is the basic functional and structural unit of life.
The cell level
The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction.
Muscular System
The respiratory system includes the nose, mouth, throat, voice box, windpipe, and lungs. Air enters the respiratory system through the nose or the mouth. If it goes in the nostrils (also called nares), the air is warmed and humidified.
Respiratory System
the spontaneous passage or diffusion of water or other solvents through a semipermeable membrane (one that blocks the passage of dissolved substances—i.e., solutes)
Osmosis
It is something that depends on other factors.
Dependent Variable (DV) (Effect)
This is the collection of different tissues that perform different functions.
The organ level
a vital biological system that removes excess and waste products from the body to maintain homeostasis
Excretory System
Includes the brain, spinal cord, and a complex network of nerves. This system sends messages back and forth between the brain and the body
Nervous System
a membrane that only allows movement of solvent molecules but restricts movement of solute particles across the membrane.
Semipermeable Membrane
It is a variable that stands alone and isn't changed by the other variables you are trying to measure.
Independent Variable (IV) (Cause)
This is the collection of cells that are similar in structure and perform similar function.
The tissue level
The tissues and organs that produce, store, and carry white blood cells that fight infections and other diseases.
Lymphatic System
The glands and organs that make hormones and release them directly into the blood so they can travel to tissues and organs all over the body
Endocrine System
the physiological processes that maintain a fixed concentration of cell membrane-impermeable molecules and ions in the fluid that surrounds cells
Osmoregulation
Steps of Scientific Inquiry
Make an observation, Form a hypothesis, Collect data, Research the work of previous scientists, Design an experiment, Communicate the results and Analyze data
This is the non-living part of a cell that interacts to form a cell.
The organelle
The system that contains the heart and the blood vessels and moves blood throughout the body. This system helps tissues get enough oxygen and nutrients, and it helps them get rid of waste products.
Circulatory System
Your integumentary system is your body's outer layer.
Integumentary System
a mechanism by which mammals maintain body temperature with tightly controlled self-regulation independent of external temperatures.
Thermoregulation