Human Body Systems - Conceptual Sum-up

The following statement regarding life´s levels of organization is true

• Atoms are the building blocks of matter and are made out of cells.

• Cells are arrangements of tissues working together to keep the body healthy.

• All living organisms are made out of cells, but not all cells are made out of atoms.

• Macromolecules are special arrangements of atoms with characteristic functions within a cell.

Atoms --> Molecules --> Macromolecules--> Organelles --> ..... --> Tissues --> Organs

This is NOT a characteristic of unicellular organisms

• All life functions are carried out in one single cell.

• Are not able to form tissues, instead form colonies.

• Are mostly prokaryotic cell.

• Are able to form organisms consisting of multiple types of cells

This is an example of a Unicellular organism.

• Dust

• Grass

• Fungi

• Bacteria

Densly packed group of cells that covers the body, line the organs, and are responsible of the secretion of hormones and special enzymes.

• The Skin

• The muscular tissue

• The digestive tissue

• The epithelial tissue

The .... tissue is a cell network that sends, receives, integrates, stores, and controls chemical and electrical information within our bodies.

State three different types of tissue that constitute the brain. Describe their function within the organ.

Worms and jellyfishes are organisms that have a ..... as a skeletal system.

• Endoskeleton

• Exoskeleton

• Mesoskeleton

• Hydroskeleton

An example of an organism with an exoskeleton is a

• Tree with a strong bark.

• Rhinos.

• A very strong Jaguar.

• An ant.

Describe why is the skeletal system understood as a storage and production system.