Animal Biology Overview

<p>All of the above. (D)</p> Signup and view all the answers

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

<p>A colonial flagellated protist (C)</p> Signup and view all the answers

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

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

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

<p>Central vacuoles are primarily involved in water storage, which is less important in animal cells. (A)</p> Signup and view all the answers

<p>To create a strong bond between cells, providing structural integrity to tissues (C)</p> Signup and view all the answers

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

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

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

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

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

<p>A change in the physiological limits of tolerable temperatures allowing an animal to perform better in both warm and cold environments. (B)</p> Signup and view all the answers

<p>The hypothalamus is a part of the brain that regulates body temperature by detecting internal temperature changes. (B)</p> Signup and view all the answers

<p>Basking in the sun (C)</p> Signup and view all the answers

<p>To maintain a constant body temperature for optimal physiological performance. (C)</p> Signup and view all the answers

<p>It converts sound vibrations into electrical signals. (D)</p> Signup and view all the answers

<p>Increasing the thickness of its fur coat (D)</p> Signup and view all the answers

<p>Increased body temperature (A)</p> Signup and view all the answers

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

<p>Ectotherms obtain heat primarily from external sources, while endotherms generate heat internally. (B)</p> Signup and view all the answers

<p>It transmits sound vibrations to the inner ear. (B)</p> Signup and view all the answers

<p>To decrease blood flow to the skin to conserve heat (A)</p> Signup and view all the answers

<p>Rods detect light intensity, while cones detect color. (C)</p> Signup and view all the answers

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

<p>They travel faster in water than in air. (A)</p> Signup and view all the answers

<p>By detecting the movement of fluid in the semicircular canals. (D)</p> Signup and view all the answers

<p>By being stimulated by the movement of fluid. (D)</p> Signup and view all the answers

<p>To provide support and protection (B)</p> Signup and view all the answers

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

<p>They are both proteins that form the sarcomere structure and allow for muscle fiber shortening (C)</p> Signup and view all the answers

<p>Calcium binds to troponin, causing a change in the shape of tropomyosin, revealing the myosin binding sites on actin. (D)</p> Signup and view all the answers

<p>To conduct the muscle action potential deep into the muscle fiber (C)</p> Signup and view all the answers

<p>ATP is needed for the power stroke of the myosin head, detaching it from actin. (A)</p> Signup and view all the answers

<p>The nervous system sends signals to motor neurons, which release acetylcholine at the neuromuscular junction, leading to muscle fiber depolarization and contraction. (C)</p> Signup and view all the answers

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

<p>To maintain a stable internal environment (D)</p> Signup and view all the answers

<p>Forward feedback loops (A)</p> Signup and view all the answers

<p>It counteracts the change in the variable to bring it back to the set point. (C)</p> Signup and view all the answers

<p>Blood clotting to stop bleeding (C)</p> Signup and view all the answers

<p>Endotherms regulate their body temperature internally, while ectotherms rely on external sources. (C)</p> Signup and view all the answers

<p>A human shivering to generate heat in cold weather (B)</p> Signup and view all the answers

<p>Heterotherms can switch between regulating their body temperature internally and letting the environment influence it. (A)</p> Signup and view all the answers

<p>A bird migrating south for the winter to avoid cold temperatures. (C)</p> Signup and view all the answers

A non-human multicellular eukaryote lacking a cell wall.

Colonial flagellated protist from the Precambrian era.

Includes being heterotrophic, motile, and having nerves and muscles.

Stability achieved through extracellular junctions.

Anchoring, tight, and gap junctions that connect cells.

Attach proteins to join cells together for structural support.

Prevents passage between cells; they hold cells tightly.

Allows communication and ion exchange between adjacent cells.

Regulation of the body's internal environment near a stable level.

A process that returns a variable back to a set point.

A process that moves a variable away from the set point.

A mechanism that anticipates future needs and adjusts physiology in advance.

An organism that generates heat from internal physiological processes.

An organism that relies on external environment for heat.

An organism that maintains a constant body temperature.

An organism that varies body temperature based on environmental conditions.

Maintaining body temperature for optimal physiological performance.

The efficiency of an animal's biochemical and physiological processes.

Brain region that acts as the body's thermostat.

Changes enabling organisms to tolerate temperature variations across seasons.

Narrowing of blood vessels to reduce blood flow and heat loss.

A state of physical or mental inactivity or lethargy.

Includes the malleus, incus, and stapes, which transmit vibrations from the eardrum to the inner ear.

A membrane-covered opening that leads from the middle ear to the inner ear and transmits sound vibrations.

The ability of the lens in the eye to change shape to focus on near or distant objects.

Photoreceptor cells in the retina; rods are for low light, and cones are for color vision.

Sensory cells in the Organ of Corti that detect sound vibrations and send signals to the brain.

Receptors that detect taste (gustation) and smell (olfaction) through the binding of specific molecules.

The process of perceiving sound as waves of vibrations in the air or water.

The function of the ear involving three semicircular canals that help maintain equilibrium and coordinate movements.

A flexible connective tissue that supports joints and structures.

Framework of rigid structures that support the body and protect organs.

Muscle tissues responsible for body movement in vertebrates, including skeletal, cardiac, and smooth muscles.

Connective tissue primarily for energy storage, insulation, and cushioning.

Tissue providing strength and elasticity, supporting various body structures.

Bundles of elongated cells that enable voluntary movements and are attached to bones via tendons.

Afferent, interneurons, and efferent neurons, each serving distinct functions.

Connection between a motor neuron and a muscle fiber that facilitates muscle contraction.

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

The process that carries electrical signals along muscle fiber membranes to trigger contraction.

Voluntary muscle that moves body parts and maintains posture.

The event that initiates muscle contraction by enabling interaction between actin and myosin.

Theory explaining muscle contraction involving actin and myosin filaments sliding past each other.

Involuntary muscle found only in the heart, responsible for pumping blood.

Glands that secrete substances outside the body via ducts.

Proteins that regulate muscle contraction by controlling access to actin filaments during contraction.