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17 terms

bio terms

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Angiosperm
Flowering plant whose seed are enclosed in a fruit and are the most complex and highley adaptable plants on earth.
Bile
Chemical produced by the liver and stored in the gallbladder that breaks fat into small droplets.
Cardiac Muscle
Involunary straited muscle that is only found in the heart and conducts elerical impulses that produce rhythmic contractions.
Dormacy
In seed, the period of inactivity allowing then to survive conditions unfavorable for growth.
Ectotherm
Animal with a body temperature regulater by its environment (example: fish, amphibians, reptiles)
Feather
Lightweight, external covering of birds, used for flight and insulation.
Hemoglobin
iron-containing molecule of red blood cells that transport oxygen and some carbon dioxide.
Lateral-line System
Fluid-filled canals along sides of fish that serve as sensory receptors, enabling detection of prey and navigation in the dark.
Melanin
Cell pigment formed by the inner epidermal skin layer; colors the skin and helps prtect against ultroviolet radiation.
Pancreas
Gland that produces both hormones and digestive enzymes, pancreatic juice is alkaline which stops further digestive action of pepsin.
Placental Mammal
mammal that carries its young inside the uterus untill ready for birth.
Sepal
Leaf-like structures at the base of a flower, protects the flower while in the bud.
Stamen
In flowers, the male reproductive structure consisting of an anther and attaching hilament.
Thyroid Gland
Produces thyroxin a hormonme that regulates metabolsim and growth and calcitonin a hormone that regulate calciuim and phosphate levels.
Tropism
Irreversible, responsive movement in plants toward or away from such external stinuli as light or gravity.
Vein
Large blood vessels that return blood from the tissues back to the heart, contain one-way valves to prevent backflow of blood.
Voluntary Muscle
Muscle whose contractions are under consious conrtol (example: Skeletal muscle)