Terms
The largest lymphatic organ
spleen
This dome-shaped muscle aids in breathing.
diaphragm
This portion of the body contains most of the vital organs.
trunk
These are the air sacs in the lungs
alveoli
The early growth of a seed
Germination
The first section of the small intestine.
duodenum
This organ stores bile.
gallbladder
This plant family helps restore nitrogen to the soil.
pea family
A sensible explanation to a scientific problem
hypothesis
The process by which life continues through a new generation of organisms
reproduction
The scientific name of the windpipe.
Trachea
This pigment causes skin color.
melanin
This plant tissue carries food downward to the stems and roots.
phloem
This structure connects bones to muscles
tendons
the uniting of a sperm cell and an egg cell
fertilization
This is the type of symmetry that an organism that can be cut into equal halves in only one direction has.
Bilateral symmetry.
This type of white blood cell matures in the thymus.
B cells
This gland is considered the "master gland"
Pituitary gland
This is the process through which the water in the soil enters the root's root hairs.
osmosis
metabolism
This structure exchanges oxygen and nutrients between the blood of an unborn child and its mother.
placenta
This structure controls simple reflexes.
Spinal Cord
This type of leaf only has one blade attached to the petiole.
simple leaf
Red blood cells
The process by which plants manufacture their food
photosynthesis