BIOLOGY-TEXT
BIOLOGY-TEXT
5th Edition
ISBN: 9781260169621
Author: BROOKER
Publisher: MCG
bartleby

Videos

Question
Book Icon
Chapter 43, Problem 1CQ
Summary Introduction

To determine: The reason that reflexes are adaptive.

Introduction: Different organisms have different types of nervous system. For example, jellyfishes have a simple nerve net and humans contain a well-defined complex nervous system. The environmental changes that generate involuntary responses in the body are known as the stimulus. However, these involuntary responses generated by the body due to such stimulus are known as reflexes.

Blurred answer
Students have asked these similar questions
Many neurotoxins have been used extensively in physiological studies of neurons.  When comparing tetrodotoxin found in puffer fish and batrachotoxins from poison dart-frogs, the former had no effect on a neurons resting potential but completely stopped its action potential, whereas the later toxin immediately initiates depolarization of a neuron but prevents repolarization.  Can your group hypothesize how these toxins affect the nerve transmission differently?
Visit this site (http://openstaxcollege.org/l/neurolab)to see a virtual neurophysiology lab, and to observeelectrophysiological processes in the nervous system,where scientists directly measure the electrical signalsproduced by neurons. Often, the action potentials occur sorapidly that watching a screen to see them occur is nothelpful. A speaker is powered by the signals recorded froma neuron and it “pops” each time the neuron fires an actionpotential. These action potentials are firing so fast that itsounds like static on the radio. Electrophysiologists canrecognize the patterns within that static to understand whatis happening. Why is the leech model used for measuringthe electrical activity of neurons instead of using humans?
The first phylum with ganglia in their nervous system are the (Mollusca/Nematoda/Bivalvia/Platyhelminthes)?
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Comprehensive Medical Terminology
Nursing
ISBN:9781133478850
Author:Jones
Publisher:Cengage
Nervous System - Get to know our nervous system a bit closer, how does it works? | Neurology; Author: FreeMedEducation;https://www.youtube.com/watch?v=6O-0CVAgaEM;License: Standard youtube license