Communiction And Homeostasis

Question 1

Negative feedback

Answer 1

A process that brings about a reversal of any change in conditions

Question 2

Positive feeback

Answer 2

A process that increases any change detected by the receptors

Question 3

Stimulus

Answer 3

Any change in the environment that causes a response

Question 4

Response

Answer 4

A change in behaviour or physiology as a result of a change in the environment

Question 5

Ectotherm

Answer 5

An organism that relies on external sources of heat to regulate its body temperature

Question 6

Endotherm

Answer 6

An organism that can use internal sources of heat to maintain body temperature

Question 7

Endothermic in high temperatures

Answer 7

Physiological: vasodilation, sweating and panting, hairs lie flat providing lil insulation

Behavioural: seek shade, move less, cool drinks, orientate body to increase surface area

Question 8

Homeostasis

Answer 8

The maintenance of the internal environment in a constant state despite changes in the external environment

Question 9

Sensory receptors

Answer 9

Specialised cells that can detect changes in he environment