What is the function of the arachegonium? O a. To carry out a sexual reproductive O b. To produce eggs O C. To absorb minerals and water O d. To produce sperm

Q: The rhynchocoel is a ________. a. circulatory system b. fluid-filled cavity c. primitive excretory…

A: Step 1 The phylum Nemertea, also termed as ribbon worms are unique due to the presence of a…

Q: a) The cocoon in the earthworm is produced by the b) Most annelids possess tiny bristles called c)…

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

Q: Tapeworms posses both male and female reproductive organs. What is the name given to such organism?…

A: Sex is the combining and mixing of Chromosomes during the formation of offspring.

Q: This TRUE of enterocoely. O Results in the formation of coelom. O Results in processes in protostome…

A: Embryonic development refers to the development of a multicellular embryo from a fertilized egg.…

Q: How is the development of a hookworm larva different from the development of a pinworm larva

A: Larva is a stage during the development of animals. It occurs after the birth and before the reach…

Q: Animal having a coelom gives the advantage of: O a. It allows more efficient sense organs. O b. It…

A: A fluid-filled hollow cavity present in many living organisms is called coelom. It functions as a…

Q: Describe the life cycle of the parasitic wasp featured. What is its host? What is so crazy amazing…

A: Parasitic wasps are a large group of the hymenoptera superfamily. A parasitic organism feeds on a…

Q: A land snail, a clam, and an octopus all share(A) a mantle.(B) a radula.(C) gills.(D) distinct…

A: The land snail refers to numerous snail species which lives on land. A clam refers to a bivalve…

Q: a) Describe how coelom-status impacts the process of organogenesis. b) How do organs develop and…

A: During gastrulation, three germ layers develop, namely. ectoderm, endoderm, and mesoderm.…

Q: a) What is the unique feature of the leeches? b) What is the function of the organ that you have…

A: Introduction :  Leeches are specialized annelids without parapodia and setae but with sucker.  It…

Q: In the deuterostomes the digestive tract (Gut) forms from the cells of the a) ectoderm b) nerve…

A: Deuterostome are type of division of animals in which blastula of developing embryo becomes anus…

Q: Flatworms (platyhelminthes) possess a O A. metanephridial system B. protonephridial system O C.…

A: Flatworms are unsegmented organisms that are bilaterally symmetrical and are acoelomates. They have…

Q: Reptiles (a) are all endotherms (b) are amniotes (c) have a great deal of keratin in their epidermis…

A: Vertebrate includes all species of animals within the vertebrata subphylum. These represent the…

Q: How do reptile eggs differ from amphibian eggs? Why is this important?

A: The egg is the female reproductive unit and it is produced by the oogenesis process. It is haploid…

Q: How many tube feet would you estimate are on the oral surface of a sea star?

A: Starfish are star-shaped echinoderms which belongs to the class Asteroidea. They are found in marine…

Q: The sister taxon of the Chordata is the _____. a. Mollusca b. Arthropoda c. Ambulacraria d. Rotifera

A: All living organisms are classified based on their internal and external features. The science of…

Q: The ribs form from the ________. a. notochord b. neural plate c. neural tube d. somites

A: The process by which cells of blastula get arranged to form germ layers is called gastrulation. The…

Q: How long does I take for pork tapeworm eggs to hatch

A: It take approximately 40-60 days( that is from 1.5 month to 2 months)

Q: makes short notes on the examination of the adult and larval stage of the tsetsefly

A: The mating of tsetse fly occurs on host animals. The male settle on the female back. Females are…

Q: Flatworms (platyhelminthes) possess a a. metanephridial system  b. protonephridial system c.…

A: Platyhelminthes are flatworms having many classes of triploblastic and are acoelomate flatworms that…

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: A ciliated feeding structure in the larval stage is a characteristic of aa. trochozoan.b.…

A: The systematic classification of animals is necessary for the purposes of identification and…

Q: Which of the following is formed by a contribution of the pharyngeal endoderm? A. tracheal tube B.…

A: Internally, the endoderm forms the lining of the pharynx and it also form, a number of specialized…

Q: Which amniotes are endothermic? What are some advantages of endothermy?

A: An organism alludes to something living that has a coordinated design, can respond to boosts,…

Q: Unlike eutherians, both monotremes and marsupials(A) lack nipples.(B) have some embryonic…

A: Mammals are warm blooded, have hairs and mammary glands. They are homoiothermous. In the skin oil…

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: Nematodes and arthropods both (develop an anus from the blastopore formed during…

A: Nematode and arthropods fall under one same ancestor clade i.e. Ecdysozoa.  Nematodes are roundworms…

Q: Which structure stops large particles from going into the cephalochordates pharynx? A. mucous net…

A: Answer :- Correct Answer is option B

Q: How does ant form its coelom?

A: Ants are insects that belong to the family Formicidae. It comes under the order Hymenoptera that…

Q: Embryo above pictured here is a/an O A. blastula O B. gastrula O C. planula O D. zygote

A: Human embryonic development refers to the development of embryo. It involves the process of cell…

Q: Animal having a coelom gives the advantage of: O a. It allows more efficient sense organs. O b. It…

A: The study of biology that deals with the structure, function, evolutionary classification and…

Q: Is this a male or female? (Agathis philippinensis - axis of old cone)

A: Agathis philippinensis (also known as Almaciga or Dayungon) is a species of Agathis  native to the…

Q: Which structure(s) occur ONLY in chordata? (check all of which are true) A. Notochord B. Dorsal…

A: Chordates are phylum of animal kingdom which is bilaterally symmetrical consisting of organ level of…

Q: The pericardial cavity forms froma. evagination of the early digestive tract.b. the neural tube.c.…

A: The pericardial cavity has a small amount of serous fluid that helps to reduce lubrication and…

Q: What type of a body plan doescoelenterates, ctenophores andechinoderms have?A. Annelida…

A: The animals are the most abundant living organism that are found in almost every habitat. They have…

Q: c. Describe the mechanism of sea stars' regeneration. d. Give four examples of how echinoderms are…

A: Sea stars are star shaped fish organism of phylum Echinodermata and class of Asteroidea. It has the…

Q: How do reptile eggs protect the young?

A: Parental care is a type of behavior shown by the animals to protect their young ones.

Q: Gonozoids continue the reproductive cycle by budding medusae. About how many maturing medusae are…

A: These are rare in number and only found around the hydrocaulus's base. The gonozooids are the…

Q: Give a short note on the reproductive system of Rana?

A: Reproductive system or the genital system includes all organs and their related structures that…

Q: describe the advantage that cleidoic egg gave to terrestrial organisms

A: At the same time as repltiles are the first to have residing eggs on the earth, birds have an…

Q: Sexual reproduction in cnidarians may be carried out by which body form

A: Cnidarians are the aquatic invertebrate animal from the phylum Cnidaria. Cnidarians have two body…

Q: Which earthworms have a clitellum?a). adultsb). juvenilesc). juvenile femalesd). malese). adult…

A: Annelids are included under the sub kingdom eumetazoa and is characterized by bilateral symmetry and…

Q: Nereis, Pheretima (Earthworm) andHirudinaria (blood sucking leech) areexamples of which Phylum:A.…

A: Nereis is a genus of polychaete worms in the family Nereididae. It comprises many species, most of…

Q: Sponges exhibit indirect development.

A: Answer: Fertilization is the process takes place internally or externally between male gamete or…

Q: Among living animals, only birds have_____ . a. a cloaca c. feathers b. amniote eggs d. a…

A: Introduction :- The tissue that will become the female fetus's intestinal, genital, and urinary…

Q: Define cellular blastoderm

A: The blastula is made up of a single layer of embryonic epithelial tissue called a blastoderm…

Q: A multilayered cuticle that is periodically molted characterizes A. nematodes B. kinorhynchs O C.…

A: Despite the current use of molecular tools, the evolutionary links between gastrotrichs and other…

Classification of Marine Organisms

Classification is a way of categorizing organisms that enables an easy process of identification of such organisms. All living things are classified by grouping them under specific categories. The grouping is done based on the close relativeness of the organisms. The classification tool requires knowledge of characteristics, differences, and similarities between different organisms.