Feedback Mechanisms Flashcards
The collection of glands that products hormones that regulate metabolism, growth and development, tissue function, sexual function, reproduction, sleep, and mood, among other things
endocrine system
are chemical substances produced by endocrine gland
hormones
the tendency for an organism or cell to maintain a constant internal environment within tolerance limits
in simpler terms, its a process of self regulating. Maintaining internal stability while adjusting to external change
homeostasis
physiological processes are commonly moderated via two distinct feedback mechanisms:
positive and negative feedback
cannot make their own food
heterotrophic
its job is to break down large, complex molecules to small, simpler molecules absorbable by cells
digestive system
animals can be classified into two
invertebrates and vertebrates
animals having gastrovascular cavity include
platyhelminthes and cnidaria
they digest their food a tube or cavity with only one opening that serves as both mouth and anus
gastrovascular cavity
a pathway which recieves food through mouth on one end and eliminates wastes through the anus on another
alimentary canal
what are the four types of digestive systems among vertebrates
monogastric, avian, ruminant, and pseudo-ruminant
single stomach chamber
monogastric digestive system
process by which animals take in food using their mouth
ingestion
process by which food is broken down in mouth mechanically
mastication
what does saliva contain
ptyalin
what do birds NOT do with their food
masticate
