body system 1
Provides support for the body
what is the skeletal system
collects excess fluid and waste
what is the lymphatic system
atoms
chemical level
an organelle found in the cells of most eukaryotes
mitochondrion
front or direction towards front of body
anterior
takes in oxygen releases carbon dioxide
what is the respiratory system
circulates blood
groups of similar cells
tissue level
center of all cell functions
nucleus
position above or higher than another part of the body
superior
enables movement and maintains posture
what is the muscular system
protects body from external factors
what is the integumentary system
cells
cellular level
separates inner contents of a cell from its external environment
cell membrane
direction towards the size of the body
lateral
breaks down food into nutrients
what is the digestive system
fights diseases
immune system
two or more organs working together
organ system level
vesicles that pinch off from the Golgi apparatus
lysosomes
describes middle of body
medial
produces hormones
endocrine system
controls and coordinates all bodily movements
nervous system
the entire body
organismal level
contains more than 50 proteins
ribosomes
used to describe how far from hands or feet
inferior