Homeostasis in Biology

<p>By providing a stable habitat away from hazardous external conditions (D)</p> Signup and view all the answers

<p>Maintenance of physical and biochemical conditions (B)</p> Signup and view all the answers

<p>60% (D)</p> Signup and view all the answers

<p>Same (B)</p> Signup and view all the answers

<p>Extracellular fluid supply (B)</p> Signup and view all the answers

<p>Decrease blood glucose levels (A)</p> Signup and view all the answers

<p>Convert glucose into glycogen (B)</p> Signup and view all the answers

<p>They help maintain constant blood glucose levels (B)</p> Signup and view all the answers

<p>Store excess glucose as fat (B)</p> Signup and view all the answers

<p>They regulate their own body temperature (A)</p> Signup and view all the answers

<p>Biochemical reactions can vary in their response to temperature (A)</p> Signup and view all the answers

<p>By using solar energy and chemical energy from respiration (A)</p> Signup and view all the answers

<p>Insulin secretion increases (B)</p> Signup and view all the answers

<p>It is low and independent of temperature. (A)</p> Signup and view all the answers

<p>Seeking shade. (C)</p> Signup and view all the answers

<p>Shivering. (D)</p> Signup and view all the answers

<p>It increases blood flow to the skin surface. (D)</p> Signup and view all the answers

<p>Signals from the hypothalamus and skin. (D)</p> Signup and view all the answers

<p>They gain heat from the environment. (C)</p> Signup and view all the answers

<p>It controls involuntary responses such as shivering. (B)</p> Signup and view all the answers

<p>The metabolic rate of a resting animal in the thermoneutral zone. (A)</p> Signup and view all the answers

<p>Behavioral means like basking and seeking shade. (A)</p> Signup and view all the answers

<p>Increased heart rate. (A)</p> Signup and view all the answers

<p>By generating heat mainly within their bodies. (A)</p> Signup and view all the answers

<p>They do not have mechanisms for conserving heat. (B)</p> Signup and view all the answers

<p>Aquatic animals usually have body temperatures matching their environment. (C)</p> Signup and view all the answers

<p>More food due to a high metabolic rate. (C)</p> Signup and view all the answers

<p>Social insects have unique behavioral patterns. (C)</p> Signup and view all the answers

<p>Utilizing behavioral means exclusively for temperature regulation. (D)</p> Signup and view all the answers

Maintenance of a stable internal environment within narrow limits, allowing for optimal body functioning.

The conditions within the body that are tightly regulated to ensure optimal function.

These are the processes that automatically adjust and maintain the internal environment within specified ranges.

The fluid that surrounds cells, providing them with nutrients and removing waste products.

The fluid within cells, making up approximately 60% of the total body water.

The fluid outside cells, including plasma and interstitial fluid, facilitating communication and nutrient exchange.

The liquid component of blood, transporting nutrients, oxygen, and signaling molecules.

The fluid found in the spaces between cells, allowing for nutrient and waste exchange.

A system that maintains stability by detecting changes, activating mechanisms to counter those changes, and returning the system to its set point.

The process by which blood glucose levels are kept constant in the body.

A chemical that regulates blood glucose levels by promoting glucose uptake into cells and glycogen storage.

A chemical that raises blood glucose levels by stimulating glycogen breakdown and glucose release into the blood.

The range of temperatures within which cells can function properly.

Animals that obtain heat from external sources, like the sun, and have fluctuating internal temperatures.

Animals that maintain a constant internal temperature regardless of the external environment.

The process by which animals regulate their internal temperature within a narrow range.

Animals that rely on external sources like sunlight and the ground to regulate their body temperature.

Animals that generate their own body heat through metabolic processes.

They have a lower metabolic rate and need less food than endotherms.

They conserve energy by not using it to maintain body temperature.

They use behavioral methods like basking or seeking shade to control their body temperature.

They have a high metabolic rate and need a lot of food to maintain their body temperature.

They have mechanisms like shivering or sweating to adjust their body temperature.

They can remain active regardless of the weather, day or night.

The range of temperatures at which an endotherm's metabolic rate remains low and independent of external temperature.

The metabolic rate of a resting endotherm within the thermoneutral zone.

A mechanism that helps regulate body temperature by constricting blood vessels, reducing blood flow to the skin, and minimizing heat loss in cold environments.

A mechanism that helps cool the body by dilating blood vessels, increasing blood flow to the skin, and facilitating heat loss in hot environments.

A feedback loop that detects changes in a regulated variable (like body temperature), activates mechanisms to counter those changes, and returns the system to its set point.

The part of the brain responsible for detecting changes in body temperature and initiating responses to maintain a stable temperature.

The mechanisms that help an animal regulate temperature, including shivering, sweating, and vasodilation/vasoconstriction.