Biology 2e
Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Neuron Structure
A neuron is defined as the functional unit of the body system called the nervous system. It is significant in transmitting signals that include receiving and sending the signals from a portion of the brain. The neurons are considered specialized cells in…
Afferent Neurons
Neurons are electrically excitable cells in the body specialized for receiving and transmitting information. They are referred to as the structural units of the nervous system. The important parts of a neuron include the cell body, dendrites, and axons.
Motor Homunculus
The term homunculus is Latin and is referred to as ‘little man’. In neuroanatomy, the cortical homunculus is either the motor or sensory distribution along the cerebral cortex of the brain. It was discovered by the great scientist ‘Wilder Penfield and Ed…
Nervous System
The nervous system is the portion of an animal's body that controls and transmits signals between various parts of the body. The central nervous system (CNS) and the peripheral nervous system (PNS) are the two primary components of the nervous system in …
Question
  1. Complete the following, regarding the hydra:
  2. The hydra belongs to
    1. the Domain _______
    2. the Kingdom _______
    3. and the Phylum ______
Expert Solution
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Step 1

Introduction :-

Hydras are part of the class Hydrozoa, which includes a wide range of cnidarians that exhibit both polyp and medusa body forms. The polyp form of hydras is a tubular body with tentacles around the mouth and a simple digestive cavity, while the medusa form is a free-swimming jellyfish-like body with a bell-shaped structure and tentacles that hang down from the edges. However, the hydra mostly exists in the polyp form and is known for its regenerative ability and its ability to reproduce both asexually and sexually.

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