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Homeostasis and Endocrine Signaling
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What are cells organized into?
What are cells organized into?
Tissues, Organs, and Organ Systems
What is interstitial fluid?
What is interstitial fluid?
Fluid surrounding body cells
What are some organ systems in mammals?
What are some organ systems in mammals?
Digestive, Circulatory, Respiratory, etc.
What are the 4 animal tissues?
What are the 4 animal tissues?
Epithelial, Connective, Muscle, Nervous
What does the Endocrine System do?
What does the Endocrine System do?
A collection of glands that produce hormones that regulate metabolism, growth and development, tissue function, reproduction, etc.
What is a regulator?
What is a regulator?
An organisms that uses energy to control its internal environment
What is a conformer?
What is a conformer?
An organism that allows its internal condition to change in accordance with external changes
T or F: An animal may regulate some internal conditions and not others?
T or F: An animal may regulate some internal conditions and not others?
True
T or F: Regulation of room temperature by a thermostat is not analogous to homeostasis
T or F: Regulation of room temperature by a thermostat is not analogous to homeostasis
False
What is a set point?
What is a set point?
The way animals achieve homeostasis by maintaining a variable at or near a particular value
What is a pituitary gland?
What is a pituitary gland?
Signals from the hypothalamus travel to a gland located at its base
What are some hormones that the pituitary gland creates?
What are some hormones that the pituitary gland creates?
FSH, TSH, Prolactin, MSH
What does prolactin stimulate?
What does prolactin stimulate?
milk production for feeding
T or F: positive feedback slows a stimulus
T or F: positive feedback slows a stimulus
False, it increases stimulus response
The hypothalamus triggers hormone release from the _________
The hypothalamus triggers hormone release from the _________
Anterior Pituitary
A human is an invertebrate or vertebrata?
A human is an invertebrate or vertebrata?
Vertabrate
What is osmoregulation?
What is osmoregulation?
When the body regulates fluid to maintain homeostasis
Over ____ million species are invertebrates.
Over ____ million species are invertebrates.
2 million
Why is the excretory system important?
Why is the excretory system important?
Carries waste out of the body
Animals that are vertebrates are more _________ than invertebrates.
Animals that are vertebrates are more _________ than invertebrates.
Intelligent
What determines the movement of water across a selectively permeable membrane?
What determines the movement of water across a selectively permeable membrane?
osmolarity
Who drinks the water: freshwater fish or saltwater fish?
Who drinks the water: freshwater fish or saltwater fish?
saltwater fish
How do animals stay hydrated?
How do animals stay hydrated?
drink water, eat moist food, produce water
Who does not regulate their osmolarity: osmoconformors or osmoregulators?
Who does not regulate their osmolarity: osmoconformors or osmoregulators?
osmoconformers
The net flow of water is from the hypoosmotic to the hyperosmotic solution if ______
The net flow of water is from the hypoosmotic to the hyperosmotic solution if ______
they differ in osmolarity
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What Would You Like To Risk?
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Go To The Final Question
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