Temperature Regulation Flashcards
What is a behavioural adaptation defined as?
The way an organism acts. - Alex.P
What is a behavioural adaptation defined as?
The way an organism acts. - Alex.P
What is homeostasis defined as
The maintenance by an organism of a constant or almost constant internal state regardless of external environmental change (Amanda)
How does colouration assist with temperature regulation? What is adaptation is this an example of?
Dark colours absorb light and its associated heat, allowing animals to tolerate cooler temperatures. This is an example of a structural adaptation. - Alex.P
How does vasodilation of the capillaries relate to physiological adaptions in response to temperature regulation?
Vasodilation of capillaries located near the skins surface increase the amount of heat released, as blood carries heat. - Alex.P
How does colouration assist with temperature regulation?
Dark colours absorb light and its associated heat, allowing animals to tolerate cooler temperatures. - Alex.P
What are water and salt concentrations known as
Osmotic balance (Amanda)
What is an endothermic organism?
An organsim that relies on internal sources for heat energy such as metabolic activity.
James B
What are the two stages of homeotasis
Detecting change with sensory cells of resceptors and counteracting change with effector organs (Amanda)
How does vasodilation of the capillaries relate to physiological adaptions in response to temperature regulation?
Vasodilation of capillaries located near the skins surface increase the amount of heat released, as blood carries heat.
What are the three types of adaptations associated with temperature regulation?
Behavioural, Structural, Physiological - Locky Balboa
What do thermoreceptors do?
detect change (ashlee)
give 2 reasons for heat loss in the body
- radiation of heat from body to cooler surroundings
- convection: air currents remove warm air surrounding the body and replace it with cool air
- evaporation: when liquid droplets on body surface evaporate, heat is required to change them from liquid to gas (sweat droplets to water vapour)
(ashlee)
give two reasons why the body main gain heat
- normal cell function (metabolism)
- muscle contractions
- hot food + drinks
- heat from external sources such as the sun
(ashlee)
