Animal Biology Overview

<p>They can be divided equally along any longitudinal plane. (D)</p> Signup and view all the answers

<p>Ectoderm, Mesoderm, Endoderm (D)</p> Signup and view all the answers

<p>Roundworm (C)</p> Signup and view all the answers

<p>It enables specialized functions in different body regions. (A)</p> Signup and view all the answers

<p>The process of maintaining a constant internal environment regardless of external changes. (B)</p> Signup and view all the answers

<p>An organism that maintains a constant body temperature through internal mechanisms. (B)</p> Signup and view all the answers

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

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

<p>It acts as the 'body thermostat' controlling core temperature. (C)</p> Signup and view all the answers

<p>Allows organisms to survive in a wider range of environments. (C)</p> Signup and view all the answers

<p>It increases its metabolism to generate more heat. (B)</p> Signup and view all the answers

<p>It allows the organism to survive in a wider range of temperatures. (A)</p> Signup and view all the answers

<p>Internal metabolic processes generating heat. (B)</p> Signup and view all the answers

<p>Homeotherms maintain a stable body temperature, while heterotherms allow their body temperature to fluctuate. (B)</p> Signup and view all the answers

<p>Narrowing of blood vessels, reducing blood flow to the skin and minimizing heat loss. (A)</p> Signup and view all the answers

<p>Drinking water when thirsty (B)</p> Signup and view all the answers

<p>Torpor involves a decrease in metabolic rate and body temperature. (B)</p> Signup and view all the answers

<p>Lizards (A)</p> Signup and view all the answers

<p>Relaxation of smooth muscles in arterioles, increasing blood flow to the skin. (D)</p> Signup and view all the answers

<p>Increased metabolic rate. (D)</p> Signup and view all the answers

<p>Behavioral thermoregulation. (B)</p> Signup and view all the answers

<p>To transmit vibrations from the eardrum to the inner ear (B)</p> Signup and view all the answers

<p>Detect low-intensity light (A)</p> Signup and view all the answers

<p>To adjust the size of the pupil (C)</p> Signup and view all the answers

<p>Semicircular canals and utricle (D)</p> Signup and view all the answers

<p>Focus adjustment of the lens for different distances (A)</p> Signup and view all the answers

<p>Chemoreceptors (A)</p> Signup and view all the answers

<p>Cones (A)</p> Signup and view all the answers

<p>Generate action potentials and send signals to the brain (D)</p> Signup and view all the answers

<p>Energy reserves and insulation (A)</p> Signup and view all the answers

<p>Cardiac muscle (C)</p> Signup and view all the answers

<p>Support and provide nutrients to neurons (A)</p> Signup and view all the answers

<p>Circulatory system (D)</p> Signup and view all the answers

<p>Conduct information between body parts (D)</p> Signup and view all the answers

<p>Fibrous connective tissue (D)</p> Signup and view all the answers

<p>Signaling through the bloodstream without ducts (D)</p> Signup and view all the answers

<p>Conduct information from sensory receptors (A)</p> Signup and view all the answers

<p>Secretion and absorption (C)</p> Signup and view all the answers

<p>Simple squamous (C)</p> Signup and view all the answers

<p>Cardiac muscles are striated and have intercalated discs. (B)</p> Signup and view all the answers

<p>Support and protect neurons (D)</p> Signup and view all the answers

<p>An assembly of tissues integrated into a structure (B)</p> Signup and view all the answers

<p>Simple squamous (C)</p> Signup and view all the answers

<p>They organize cells with similar structure and function. (C)</p> Signup and view all the answers

<p>Cardiac muscle is involuntary and striated. (C)</p> Signup and view all the answers

Animals where anus develops first, mouth forms later.

Animals where mouth develops from the blastopore first.

Layers from which all body structures develop: ectoderm, mesoderm, endoderm.

Outermost germ layer; forms skin and nervous system.

Middle germ layer; forms muscles, skeleton, and organs.

Innermost germ layer; forms gut lining and digestive tract.

Fluid-filled space separating the gut from body wall; also known as coelom.

The regulation of internal conditions to maintain stability.

Maintain body temperature for optimal physiological performance.

Organisms that obtain heat primarily from the environment.

Organisms that generate heat through internal reactions.

Adaptations in response to seasonal temperature changes.

Brain region that regulates core temperature.

Narrowing of blood vessels to reduce heat loss.

Widening of blood vessels to increase heat loss.

A state of physical or mental inactivity; lethargy.

The basic unit of life that can function independently.

Groups of cells with similar structure and function that work together.

Structures composed of different types of tissues working together for specific functions.

Groups of organs that perform related functions to carry out complex processes.

Layered sheets of cells that cover surfaces and line cavities in the body.

Tissue that supports, binds, and protects other tissues and organs.

Tissue responsible for movement, consisting of cells that can contract.

Tissue made up of neurons and glial cells, responsible for signaling and communication.

A flexible connective tissue that provides support and aids joint movement.

Connective tissue that stores energy, insulates, and provides padding.

Tissue that provides strength and elasticity, allowing movement and support.

A nerve cell that transmits information between body parts.

Striated muscle cells that allow voluntary movement and maintain posture.

Involuntary muscle found only in the heart, involved in pumping blood.

Glands that secrete substances outside the body through ducts.

Supportive cells in the nervous system that provide nutrients and insulation to neurons.

The part of the ear containing the Malleus, Incus, Stapes, and Oval Window.

The process by which the lens of the eye changes shape to focus on objects at varying distances.

Photoreceptor cells in the retina specialized for low-light vision.

Photoreceptor cells in the retina that detect color and are sensitive to different wavelengths of light.

A spiral-shaped organ in the inner ear responsible for hearing.

Receptors that provide information about taste and smell by binding specific molecules.

Found in the cochlea, it contains hair cells that send sound signals to the brain.

A rapid electrical signal generated when a receptor is stimulated, leading to communication with the CNS.

Mechanisms that return a physiological variable back to set point.

Moves a variable away from the set point to increase a process.

Physiology is adjusted in advance by anticipating future needs.

Organisms that maintain a constant body temperature.

Organisms that vary their body temperature with the environment.