Cell

Smallest unit of function and structure of living things. (The building blocks of living things)

 Nucleus

Directs a cell's activities.

 Chromosome

 Inside nucleus; contains info about cell.

 Cell Membrane

 Holds a cell together and separates it from its surroundings.

 Cell Wall

 Supports and protects a plant cell.

 Cytoplasm

 A jelly-like substance containing chemicals that help the cell stay healthy.

 Chloroplast

Makes food for the cell.

 Vacuole

 Stores food, water or wastes.

 Vesicle

 Transports materials.

 Mitochondrian

Releases energy from food.

 Organism

A living thing.

Tissue

 A group of cells that work together to perform a certain function.

 Organ

 A group of tissues that work together to perform a certain function.

 Organ System

 A group of organs that work together to do a job for the body.

The circulatory system is your heart and blood vessels. Your lungs are part of the respiratory system, and your stomac is part of the digestive system.

 Epithelial

Tissues that cover our bodies (skin).

It lines our organs and the inside of our capillaries (tiny blood vessels) that carry food and oxygen to every cell and carries away waste.

Muscle Tissue

Our body is made mostly of muscle tissue. Muscles move your skeleton. Muscles in organs move food, oxygen, and blood through the body. (Your heart is mostly muscle tissue)

Connective Tissue

Blood, bones, and cartilage.

                              Ears and nose

Nerve Tissue

Brain, nerves, and spinal cord.

Microorganisms

An organism that is too small to be seen with unaided eyes.

Bacteria

A certain type of microorganism.

Mold

A kind of fungus.

Protist

A single-celled or multi-celled organism that shares traits with plants or animals. Protists live in ponds and lakes.

Algae makes itself own food. Some algae if food for fish, but some can produce a red tide and kill fish. Protozoans are single-celled protists. They hunt for their food.

Fungi

Yeasts and molds. Fungi is a decomposer because it breaks down dead plants and animals. that's how it gets food.

Phytoplankton

Made of bacteria and protists.

Live near the surface of the ocean.They use photo synthesis to make their own food and release oxygen into the atmosphere. At least half of the the Earth's oxygen comes from Phytoplankton.