feeding and digestion. intracellular digestion-each cell digests its own nutrients paramecium – a...
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Feeding and Digestion
Intracellular Digestion-each cell digests its own nutrients
Paramecium – a single-celled pond organism
Digestive Systems
Human Digestive System
TeethIndicateDiet
Which digestive system islonger, acarnivore oran herbivore?
WHY??
Compartments of a Cow’s Stomach
Open vs. Closed Circulatory System
Open = blood in sinuses Closed = blood is always in the heartor a blood vessel, never in sinuses.
Fish has 2-chambered heart
Amphibian has 3-chambered heart
Mammal has 4-chambered heart
Human Heart is 4-chambered:2 atria and 2 ventricles
Left side=blood withoxygen
Right side=unoxygenatedblood
Cardiovascular System- Human Circulation
Fish Respiration through Gills
Insect Respiration through Tracheae
Human Respiration through Lungs
Bird Respiration through Lungs
Male Anatomy
Female Anatomy
Female Hormones
Placenta