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The Functions And Characteristics Of Living Things and Life

The world around us includes a variety of living organisms with various looks and lifestyles Despite this variety, all living things carry out the very same standard functions:  Living things respond to modifications in their instant environment–Plants orient to the sun, you move your hand far from

Structure of Cell – Membrane, Cytoplasm, and Organelles

All the living things are made up ofcells The human body is made up of about 75 trillion cells, the tiniest living systems that exist. Body cells can be categorized into about 300 types, such as neurons, epithelial cells, muscle cells, and red bloodcells Each type of

Mitotic Cell Division And Mitotic Phases

Cells replicate themselves through a process called cell division. Two types of cell division occur in the body: mitotic cell division and meiotic cell division. Somatic cells (cells other than sex cells) divide by mitotic cell division, during which a parent cell divides to form two new

Epidermis And Accessory Structure Formed By The Epidermis And Their Functions

The epidermis is a keratinized stratified squamous epithelium. An epithelium is avascular, meaning it lacks blood vessels. Since the epidermis is prone to injury, the lack of blood vessels prevents unnecessary found only in areas subjected to high levels of abrasion, such as the palms and soles.

Major Skeletal Muscles

There are more than 600 muscles in the body, but only a few of the major muscles are considered here. Muscles of Facial Expression And Mastication Muscles of the face and scalp produce the facial expressions that help communicate feelings, such as anger, sadness, happiness, fear, disgust,

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