Conformers and regulators Flashcards
Abiotic factors
Temperate and pH
What is conformers
internal environment dependant on
Dependent on external factors.
What responses do conformers use to maintain optimum metabolic rates
Behavioural
Range of niches and metabolic costs of conformers
Narrow and low
How do regulators control their internal environment
Metabolism
Range of niches and metabolic costs
Wide and high
What is required to achieve homeostasis
Energy
What is the Temperature monitoring centre
The hypothalamus
What is negative feedback control
Info communicated by the electrical impulses through nerves to the effectors which bring about corrective responses to return temperature to normal.
Corrective responses used for an increase in body temp
Swearing
Vasodilation of blood vessels
Decreased metabolic rate
What does swearing do
Body heat used to evaporate water in the sweat which cools the skin
What does vasodilation do
Increased blood flow to the skin to increase heat loss
What are the corrective responses to a decrease in body temperature
Shivering
Vasoconstriction
Hair erector muscles contract
Increased metabolic rate
What does shivering do
Contracts muscles which generates heat
What does vasoconstriction do
Decreases blood flow to the skin decreasing heat loss
