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Since the head forms the anterior part of the body, cephalization helps the animal to sense the surrounding with the help of sense organs. They can detect source of food and also protect themselves from enemies.
- What are the advantages of cephalization?
- What is cephalization how is it useful to its possessors?
- What does it mean if an animal has cephalization?
- What is the advantage of cephalization in arthropods?
- What is the relevance of cephalization to the evolution of animals?
- What does it mean to call something Cephalized?
- What is meant by Cephalisation Class 11?
- What is Cephalisation Class 11?
- What is Cephalization Brainly?
- What is the advantage of bilateral symmetry?
- Are all worms Cephalized?
- What is the special term for the development of a head region?
- What are the advantages of cephalization and bilateral symmetry?
- What is radial symmetry in zoology?
- How has a Coelom been an advantage to the earthworm?
What are the advantages of cephalization?
Advantages of cephalization are development of a complex neural system and intelligence, clustering of senses to help an animal rapidly sense food and threats, and superior analysis of food sources. Radially symmetrical organisms lack cephalization.
What is cephalization how is it useful to its possessors?
It is useful to its possessors as it helps in the quick voluntary movements to either find prey, or avoid being a prey. It also allows for the organism to have an axis of symmetry, further making quick movements possible as the organism can either find prey or avoid being prey.
What does it mean if an animal has cephalization?
cephalization, the differentiation of the anterior (front) end of an organism into a definite head. ... Some groups of organisms show full cephalization, but because their bodies are not divided into distinct trunks and heads, they cannot be said to possess a distinct anatomical head.
What is the advantage of cephalization in arthropods?
Arthropods. In arthropods, cephalization progressed with increasing incorporation of trunk segments into the head region. This was advantageous because it allowed for the evolution of more effective mouth-parts for capturing and processing food.
What is the relevance of cephalization to the evolution of animals?
Cephalization evolved several times within the animal kingdom, suggesting that it offers certain inherent advantages. In particular, with the evolution of cephalization, the anterior end of the animal became most likely to first encounter food, predators, and other important features of the external environment.
What does it mean to call something Cephalized?
The definition of cephalization means the trend in evolution for the nervous system and the sensory organs to be positioned near the human or animal head. An example of cephalization is the tendency for an animal's ears to be on its head. noun.
What is meant by Cephalisation Class 11?
Cephalization is the phenomena in which due to morphogenetic gradient the mouth, sense organs, and nerve ganglia are concentrated at the frontal end of the organism forming a head region. ... Cephalization was first observed in flatworms which are also known as Platyhelminthes.
What is Cephalisation Class 11?
CBSE Class 11 CBSE Class 11 Biology. animal-kingdom, cbse. prasanna July 19, 2016, 9:40am #1. (a) Differentiation of a definite head at the anterior end is called cephalization. (b)It involves the concentration of nervous tissue (brain) and sense organs in the head.
What is Cephalization Brainly?
Brainly User. Cephalization is an evolutionary trend in which, over many generations, the mouth, sense organs, and nerve ganglia become concentrated at the front end of an animal, producing a head region. This is associated with movement and bilateral symmetry, such that the animal has a definite head end.
What is the advantage of bilateral symmetry?
The advantages of bilateral symmetry include the formation of a head and tail region, where the head region can house a detailed nervous system, and more directional movement to include the ability to move straight forward.
Are all worms Cephalized?
Though not obvious, cephalization does exist in an earthworm. ... Hence, the earthworm exhibits cephalization.
What is the special term for the development of a head region?
Cephalocaudal development describes the general growth pattern of organisms to develop areas near the main neural area (typically the head) earlier than areas of the body that are more distant. This can be seen in human fetuses where the head is the first body part formed.
What are the advantages of cephalization and bilateral symmetry?
The combination of cephalization and bilateral symmetry allowed for the development of a digestive system consisting of a mouth at one end and an anus at the other. This combination of features allows the organism not only to be smart, but also to move in complex ways.
What is radial symmetry in zoology?
Radial symmetry is the arrangement of body parts around a central axis, like rays on a sun or pieces in a pie. Radially symmetrical animals have top and bottom surfaces, but no left and right sides, or front and back. ... Radial symmetry: Some organisms, like sea anemones (phylum Cnidaria), have radial symmetry.
How has a Coelom been an advantage to the earthworm?
The coelom provides a space within the organism for internal organs to attach and develop. The fluid within the cavity acts as a type of shock absorber to prevent damage to internal organs when the organism moves around.
