An animal cannot be acoelomate if it is also triploblastic (True/False)?

Q: Another name for reptiliomorphs is anthracosaurs True False

A: Answer: Introduction: The Reptiliomorpha term was given by Professor Gunnar Säve-Söderbergh in 1934…

Q: Compare and contrast the embryonic development of protostomes and deuterostomes

A: Metazoans are divided into protostomia and deuterostomia based on the development of the embryo.…

Q: The type of skeleton in earthworms that allows it to move forward or backward_________.

A: In good soils, whether in your garden or a meadow, earthworms are common. They are slimy,…

Q: The first coelomate animals are the (Nematoda/Platyhelminthes/Mollusca/Arthropoda)?

A: coelomates or eucoelomates are the organisms that possess true coelom. The true coelom is considered…

Q: invertebrate

A: Invertebrates are species of animal that neither possess nor develop a vertebral column, derived…

Q: The evolution of tetrapod limb was one of the most important advances in vertebrate history. Explain…

A: Answer of the question given below...

Q: Nematodes are acoelomate animals (True/False)

A: Acoelomate animals are those animals which have no coelom or body wall present in them. Thus a…

Q: Spiral cleavage can occur in both deuterostomes and protostomes (True/False)?

A: Deuterostomes are animals in which the anus develops from the blastopore and the mouth develops…

Q: With an help of properly illustrated drawings, explain the difference in the development of…

A:

Q: Do amphibians have amniotic eggs?

A: No amphibians does not have amniotic eggs.

Q: The presences of which of the following anatomicals would best distinguish a gastropod from a…

A: An organism refers to a living thing that has an organized structure which can react to stimuli,…

Q: Animals that have an anterior and posterior end are said to be_______ . The anterior end of such…

A: Animals that have an anterior and posterior end are said to  be cephalized.  The anterior end of…

Q: Compare the process of gastrulation in amphioxus and birds

A: Gastrulation is a process early in most animals' embryonic development during which the blastula is…

Q: Compare and contrast the symmetry and body shape of the different classes of echinoderms. (Answers…

A: The phylum echinoderms is partitioned into five surviving classes: Asteroidea (ocean stars),…

Q: Is a cartilaginous skeleton a homolgy between early gnathostomes and cyclostomes due to their shared…

A: Gnathostomata is a class of jawed vertebrates and consists of around 60000 species of vertebrates.…

Q: All vertebrates are chordates but all chordates are not vertebrate? Justify the statement?

A: Chordates are those animals that have rod like notochord.In some chordates, the notochord is…

Q: Archegonium is an example of female gametangium in plants, which produce motile egg cell.

A: Ans- False Explanation- Archegonium is the female reproductive organ occurs in ferns, mosses and in…

Q: definition of Instar, Naiad and Nymph

A: Entomology usage terms that differentiate the Insects based on various traits like habitat ,…

Q: Which animal does not undergo metamorphosis?

A: Metamorphosis is a biological process in which an animal goes through various continuous physical…

Q: Types of eggs in chordates

A: Chordates belong to the phylum chrodata and are the part of animal kingdom. Chordates posses…

Q: A shark has a _________ skeleton, whereas a tuna has a _________ skeleton.

A: Osteichthyes and Chondrichthyes have classed under superclass Pisces that come under the division…

Q: salamande, sea star, snail, butterfly, earthworm, roundworm, planaria, sea anemone and sponge, tell…

A: Body symmetry  is arrangement or organization of various parts of body around the central axis.…

Q: Cnidarians and flatworms lack a circulatory system. True False

A: Cnidarians lacks any organs i.e they don't have any circulatory system or other system. And they…

Q: You find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What…

A: The daughter cells are positioned in the grooves of the parent cells in a spiral division. The…

Q: If radial cleavage occurs during development, the animal will be a deuterostome (True/False)?

A: Deuterostome in greek mean second mouth. It make a nephrozoa clade with protostomia clade. they are…

Q: Spermatogenesis and oogenesis

A: Oogenesis is the growth process where the primary egg cell or ovum becomes a mature ovum. There are…

Q: examples of each vertebrate class and describe their significance and/or significant features

A: Animals having a spinal cord that is surrounded by bone or cartilage are called vertebrates. Based…

Q: Which of the following is NOT an axial skeleton in the frog? urostyle mandible sternum ribs

A: Introduction:- The axial skeleton is comprised of the 80 bones that make up the body's central core.…

Q: Which type of animals typically not bilaterally symmetrical and its adult stage Echinoderm Copepod…

A:

Q: Differentiate Protostomes from Deuterostomes in terms of the formation of cleavage

A:

Q: Fingers and toes would be an ancestral feature in land vertebrates. A) True B False

A: Vertebrates include all kind of animal species which contains backbone.

Q: Taenia saginata egg

A: Introduction:- Taenia saginata is also called beef tapeworm, it's a cestode parasite, in humans…

Q: In an ecdysozoan would cease if ecdysis did not occur.

A: Arthropoda (insects, chelicerata, crustaceans, and myriapods), Nematoda, and several smaller phyla…

Q: All molluscs, but the bivalves, are bilaterally symmetrical (True/False)?

A: Bilateral symmetry means that the body can be divided in two halves that is left and right if…

Q: “All vertebrates are chordates but all chordates are not vertebrates”. Justify the statement.

A: The animal kingdom is classified into different phyla which represent a particular kind of…

Q: Gonads and muscles of bilateral animals are derived from endoderm. True False

A: When fusion occurred between male amd female gametes and zygote is produced , it undergo certain…

Q: sea star Tube feet are extended when the ____________________________ contracts.

A: Echinoderms are a phylum of marine invertebrates that include starfish, brittle stars, sea…

Q: Holometabolis refers to complete metamorphosis (True/False)?

A: The above-mentioned statement is true. Holometabolsim is a synonym for complete metabolism. It…

Q: Explain how protostomes are distinguished from deuterostomes.

A: Organisms based on their embryonic development can be classified into Protostomes and deuterostomes.…

Q: Dinosauria is divided into these two major clades O theropods & ornithopods crurotarsans &…

A: Discovery of many new species since 1840. Dinosaur is divided into major classes.

Q: If an animal has coelom, you also would expect it to exhibit: cephalization bilateral symmetry a…

A: The coelom is the fundamental body cavity in many animals and is situated inside the body to…

Q: Orrorin tugenesis was bipedal because it left footprints that showed it had an arch to its foot like…

A: Bipedalism allowed hominids to entirely free their arms, allowing them to quickly produce and…

Q: The egg of a fish is what type of chordate egg and why? a. isolecithal b. telolecithal with total…

A: All fish eggs are surrounded by using an envelope, referred to as the zona pellucida (ZP), that…

Q: Coelom formation in Deuterostomes is ____________ whereas in Protostomes is _____________.

A: Metazoans are classified into deuterostomes and protostomes due to their different embryonic…

Q: Triploblastic animals that lacks a through-gut and coelom

A: Triploblastic organisms are the ones that are developed from three germ layers. These layers are…

Q: Amniotic eggs, compared to non-amniotic eggs, are a useful adaptation for

A: Amniotic eggs have  extra-embryonic membranes such as amnion ,chorion and allantois which have…