The first section of the small intestine
What is the duodenum
Controls simple reflexes
What is the spinal cord
The air sacs in the lungs
What are alveoli
Muscles that work without conscience thought
What are involuntary muscles
The part of the body containing most of the vital organs
What is the trunk
The scientific name for the windpipe
What is the trachea
The primary pigment that gives skin it's color
What is melanin
Connects bone to muscle
What is a tendon
Species
What is a distinct type of organism
This plant family helps restore nitrogen to the soil
What is the pea family
The largest lymphatic organ
What is the spleen
The blood cells that mature in your thymus
What are B cells
The early growth of a seed
What is germination
The branch of biology that studies the relationship between organisms in their environment
What is ecology
Plant tissue that carries food downward
What is the phloem
exchanges oxygen and nutrients between the blood of the unborn child and the mother
What is the Placenta
The master gland
What is the pituitary gland
The sum of all chemical processes of life
What is metabolism
The process that water in the soil enters a root's root hairs
What is osmosis
The organ where bile is stored
What is the gallbladder
The dome shaped muscle that helps you breath
What is the diaphragm
A leaf with only one blade attached to the petiole
What is a simple leaf
The study of reasoning
What is logic
The uniting of a sperm cell and an egg cell
What is fertilization
A young plant no longer in need of it's cotyledons
What is a seedling