Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Bilateral - Metazoa
Bilaterally symmetrical animals have the major axis running from head (anterior) to tail (posterior). They have a ventral (lower) and dorsal (upper) surface that are different from each other. They have only two sides that look alike, the right and left. The animal can be divided into just two identical halves through a plane which passes from anterior to posterior end. Almost all animals including human beings except for sponges, ctenophores and cnidarians show bilateral symmetry.
Adult echinoderms, though radially symmetrical (pentamerous) have larvae that are bilateral. This is because they have evolved from bilaterally symmetrical ancestors. In general, bilateral animals that adopt a sessile existence commonly exhibit a shift towards radial symmetry. The shift may be slight as in acorn barnacles where only protective circular wall plates are arranged radially or the shift may be profound as in the case of sea stars or starfishes. Bilateral animals are called Bilateria.
Why do biologists believe humans, chimpanzees, and gorillas all came from an ancient ancestor
compare between their phenotypes
What is commensalism? Commensalism is the ecological interaction in which one individual advantage while the other is neither benefited nor harmed. Commensalism is a harmonious
Explain the Bioavailability of Thiamin? Thiamin is readily available from the gut from food sources (as thiamin phosphate esters). Drugs and alcohol abuse may interfere with th
Three charges are at the corners of an equilateral triangle, as shown in the figure below. Calculate the electric field at a point midway between the two charges on the x-axis. (Le
Determine the Modification of native starch Modification of native starch can be either physical or chemical. Chemical modification includes reaction of starch with acid or al
Arrhythmias especially in presence of hypokalemia, lack of mortality benefit. However, their efficacy in reducing the symptoms of heart failure has been established. Digoxin should
Define Reaction for Nelson-Somogyi Method? The reagent used for enolization contains alkaline solution of cupric sulfate and Rochelle salt. Rochelle salt in the reagent prevent
Q. What are the symptoms of congestive cardiac failure? Congestive cardiac failure is a progressive form of cardiomyopathy. The most classical symptom is fluid imbalance due to
Q. Categories of value of biodiversity? The value of biodiversity is often divided into two main categories: · UTILITARIAN (also known as instrumental, extrinsic, or use) v
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd