What does radial symmetry means, Biology

Assignment Help:

Q. What does radial symmetry means? What is the kind of symmetry found in chordates? Which are other phyla of the animal kingdom that present species with radial symmetry?

Radial symmetry means (biologically) that the animal structures are situated in a circular or radial pattern around a center point with nonexistence of sides, like left or right. An alternative type of symmetry in which structures are placed equally in the sides of a longitudinal axis is the lateral symmetry the symmetry present in human beings, for instance, Chordates present lateral symmetry. Besides cnidarians another animal phylum with species presenting secondary radial symmetry is the phylum Echinodermata, It is considered that the simplicity of poriferans does not characterize any symmetry.


Related Discussions:- What does radial symmetry means

Entomophily - cross-pollination, Entomophily - Cross-pollination It in...

Entomophily - Cross-pollination It involves insects to carry the pollen to achieve pollination. Salvia exhibits a specialised 'tumapipe' floral mechanism that signifies classi

Problem of survival among cheetahs, Once quite widespread throughout Asia a...

Once quite widespread throughout Asia and Africa, there has been a large reduction of the cheetah's habitat and numbers though it is still seen in widely separated areas of Africa.

Why is the determination of the blood types of the donor, Why is the determ...

Why is the determination of the blood types of the donor and of the recipient important in transfusions? The Red blood cells have different antigens in the outer surface of the

Bacteriophage, Bacteriophage is a virus which infects a bacterium and whic...

Bacteriophage is a virus which infects a bacterium and which is many times used in molecular genetics experiments as the vector, or cloning vehicle. Recombinant phages can be made

Can you illustrate trna anticodon, Q. If a tRNA anticodon is CAA what is it...

Q. If a tRNA anticodon is CAA what is its corresponding mRNA codon? For the genetic code which amino acid does this codon codify? According to the C-G, A-U rule, the correspond

Nervous system - spinal cord, SPINAL CORD (MYELON) It is part of CNS. 4...

SPINAL CORD (MYELON) It is part of CNS. 45 cm long (in woman 43 cm) & weight 35 gms. Origi n from lower part of medulla oblongeta. Shape - Long cylindrical,

Writing have contributed to the survival of human beings, In what ways migh...

In what ways might (a) clothing, (b) housing, (c) writing, have contributed to the survival of human beings? a) Clothing and (b) housing provide warmth and shelter, and so hav

Maedi/visna, Maedi/visna Maedi, a progressive pneumonia, and visna, a n...

Maedi/visna Maedi, a progressive pneumonia, and visna, a neurotropic disease, found in sheep and goats are caused by the Maedi/visna virus, belonging to the family Retroviridae

Problems of osmoregulation, Problems of Osmoregulation The water, some...

Problems of Osmoregulation The water, some inorganic salts, nutrient molecules are some of the important components of the body fluids. It is essential for the animals to main

Microbiology, advantages of spread plate method over pour plate method

advantages of spread plate method over pour plate method

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd