From cells to organisms Reese Cells n Multicellular

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From cells to organisms Reese

From cells to organisms Reese

Cells n Multi-cellular organisms contain a large number of highly specialized cells. Humans for

Cells n Multi-cellular organisms contain a large number of highly specialized cells. Humans for example (just to name a few) have skin cells, nerve cells, sex cells, and blood cells, etc…

Tissue n Tissue is a group of cells that work together to perform a

Tissue n Tissue is a group of cells that work together to perform a specific job.

Muscle Tissue n n Function: contracts and relaxes to allow movement. Examples: skeletal muscle,

Muscle Tissue n n Function: contracts and relaxes to allow movement. Examples: skeletal muscle, cardiac muscle, and smooth muscle

Nerve Tissue n n Function: transmits messages through the body. Examples: brain, spinal cord,

Nerve Tissue n n Function: transmits messages through the body. Examples: brain, spinal cord, nerves

Epithelial Tissue n n Function: covers the outside of the body and lines the

Epithelial Tissue n n Function: covers the outside of the body and lines the organs. Example: Skin

Connective Tissue n n n Connective Tissue Function: connects, supports, and protects other tissues

Connective Tissue n n n Connective Tissue Function: connects, supports, and protects other tissues Examples: ligaments, tendons, cartilage, bone, and blood

Organ n n An organ is a structure made up of two or more

Organ n n An organ is a structure made up of two or more tissues that work together to carry out a specific job. Examples of organs: Heart, lungs, liver, etc…

Organ System (11 systems) n n An organ system is made up of all

Organ System (11 systems) n n An organ system is made up of all the organs that work together to do a specific job. Example: Your digestive system has many organs such as the liver, stomach, intestines, etc. . in order to break down food that your cells can use.

Organism n An organism is a living thing. Multicellular organisms such as humans are

Organism n An organism is a living thing. Multicellular organisms such as humans are made up of cells, tissue, organs, and organ systems.

Population n Group of organisms of the same species.

Population n Group of organisms of the same species.