During embryonic development, if the blastopore of the gastrula forms the mouth opening second (anal opening first), the animal is classified as a O protostome arachnid O deuterostome O triploblast

Q: All acoelomate bilateral animals have protonephridia. Group of answer choices True False

A: ▪︎Acoelomates are the organisms which do not possess a body cavity.They are triploblastic, their…

Q: Whereas hagfish have no larval stage lamprey larva differ significantly from adults. One difference…

A: Lampreys are an ancient extant lineage of jawless fish of the order Petromyzontiformes, placed in…

Q: Many arthropods have multiple distinct life stages. True False

A: Answer: The right option is: TRUE

Q: hemichordates are said to be the missing link between the invertebrates and vertebrates.

A: A)INVERTEBRATES:- These are those organisms which are without any strong structural support means…

Q: The tapeworms (cercomeromorpha) are not considered to be segmented animals because;

A: Animals (likewise called Metazoan) are multicellular eukaryotic creatures that structure the natural…

Q: Embryos with cleavage pattern depicted in panel A exhibit mosaic development. B True False

A: Note: As per Bartleby Guidelines, For Remaining Answers Please Repost The Question. Introduction:…

Q: Question 11 Which is TRUE for embryonic development of prc O Lacking three germ layers O…

A: A protostome could be a cluster of animals that has invertebrates like arthropods (insectsand…

Q: Give the order for the life cycle of the hydrozoan, Obelia, starting with the polyp form.…

A: Obelia is a marine and freshwater animal species belongs to the genus hydrozoans. It is also called…

Q: Annelida (Segmented round worms) How do these worms differ from the other two? What are the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. If you need help with other sub…

Q: The male copulatory organ of turbellarians is called a

A: Turbellarians belong to phylum Platyhelminthes.Temnocephala lamothei ,Dugesia aenigma,Dugesia…

Q: What type of body symmetry does the animal in this picture have? O bilateral symmetry asymmetry O…

A: Symmetry  is defined as attribute of organisms where body parts of the animal can be repeated in an…

Q: Cnidarians development will continue to include the stage. --- Gastrula Zygote Blastula Gamete

A: Cnidarians are also commonly known as coelenterates. They are a phylum under Kingdom Animalia that…

Q: GIANT SQUID ANAΤΟΜΥ TRUNK EYE FIN SUCKERS HEAD LONG FEEDING TENTACLE TENTACLE

A: INTRODUCTION The Giant Squid (Architeuthis Dux) Belongs To The Architeuthidae Family Of Deep-ocean…

Q: Why is the presence of a coelom advantageous? O it allows room for the development and movement of…

A: The coelom is lined by a muscular tissue called the peritoneum that encloses the internal organs.…

Q: Flatworms show bilateral symmetry and some cephalization.   True   False   Some parasitic…

A: Carl Linneaus form animal kingdom along with other 4 kingdom. Under animal kingdom, animals are…

Q: The defining feature of the cnidarians is that they all have nematocytes (cnidocytes). These cells;

A: Cnidaria is a phylum of aquatic animals with about 11000 species. Cnidarians can be both marines as…

Q: The class of annelid worms which differs from all other classes of annelid worms in that it lacks an…

A: Phylum name: Annelida, commonly known as segmented worm, is a phylum of invertebrates that includes…

Q: Why are the Cnidaria neither protostomes nor deuterostomes? O they don't have body cavities O they…

A: All Cnidaria are : aquatic mostly marine. They all have tentacles with stinging cells called…

Q: The phylum Nematoda is protostome or Deuterostome ?

A: Phylum Nematode commonly referred to as roundworms or thread worms are aquatic or terrestrial,…

Q: Which of the following would NOTbe considered an organ of respiration for organisms in Phylum…

A: There is a diverse array of respiratory organs throughout the Animal Kingdom.   Respiratory organs…

Q: which of the following features does not distinguish humans as a member of phylum chordata as…

A: Chordata are the group of animal kingdom which includes three groups that are urochordata,…

Q: Which of the 4 characteristics of Phylum Chordata is visible on this organism?     Pharyngeal…

A: To determine which of the four characteristics of Phylum Chordata is visible on an organism, we need…

Q: What animal is this? nemertean polychaete tardigrade arrow worm phoronid

A: Tardigrade : They are also known as water bears. They are 8 legged microorganisms. They are known to…

Q: Which phylum is characterized by a hard, flexible exoskeleton and multiple life cycles?

A: Ans. Animals from the biological Animalia kingdom, are multicellular eukaryotic organisms. Animals…

Q: Which of the following options represent examples of deuterostomes? [check all that apply]. Mammals…

A: On the basis of formation of mouth, animals can be deuterostomes and protostomes.

Q: Members of the phylum Platyhelminthes have two body forms: free-swimming medusa and stationary…

A: The phylum Platyhelminths includes the soft bodies worms that are bilateral and unsegmented…

Q: The labyrinth of the antennal (or maxillary) gland is used to: take up space and look ugly O provide…

A: INTRODUCTION Antennal gland It is located at the anterior region of head. It has two parts sacule…

Q: Which is false about animal xygote?  it's produof fertilized egg   it's totipotent stem cell…

A: A zygote is a fertilised egg cell produced by the union of a female gamete (egg, or ovum) and a male…

Q: Name the animal shown in this picture. O Nematoda O Mollusca OAnnelida O Cnidaria OPlatyhelminthes

A: