Why is nematode species C. elegans so famous? A. t secretes a glue that may be useful for pacemaker surgery B. it lives symbiotically within cacao seeds C. it makes an antibiotic that is now on trial D. Scientists have mapped where each embryonic cell ends up 19

Q: How can climate change impact insect vector distributions? a. As environments change, insect vectors…

A: Climate is that part of the environment in which the organism lives and interacts. There is always…

Q: Which of the following statements about bilaterian animals is false? A. Many bilaterians are…

A: Bilateral symmetry refers to body shaped species which are mirror copies of a midline called the…

Q: Cells of a sponge that have cilia and direct water flow through the sponge are called_____.…

A: Sponges are the members of Phylum Porifera. They are multicellular organisms with pores and channels…

Q: Which of the following is most closely related to lobsters and what characteristics are significant…

A: Lobsters are a group of crustaceans which are commercially important because they are consumed as…

Q: You go plankton fishing and catch a trocophore larva. You take it home and it develops into some…

A: Animals are multicellular organisms , eukaryotic organism that are without cell wall . Animal…

Q: 13 - Chambered heart occurs in:   A) Leech B) Earthworm C) Snail D) Cockroach

A: The heart performs the function of pumping blood to the different parts of the body. Different…

Q: Sponges from the phylum Porifera ... [choose the incorrect response}   Question 29 options:   have…

A: Introduction Sponges are the member of the phylum porifera. They are multicellular organism. They…

Q: Which of the following characteristics are unique to a ctenophore? Do not possess nematocysts; A…

A: Question - Which of the following characteristics are unique to a ctenophore? A) Do not possess…

Q: Crustaceans are _____. a. ecdysozoans b. nematodes c. arachnids d. parazoans

A: Answer is a.)  ecdysozoans.

Q: This specimen is not a nematode because: O a. It has 2 layers of muscle. O b. It has a gut. C. It…

A: Nematodes are also known as roundworm. They belong to the phylum Nematoda.

Q: why are Acanthamoeba and Naegleria parasites described as: a. Ubitiqous organisms b. Miscellaneous…

A: * Acanthamoeba and Naegleria are the protozoan parasites that can be found in many sources like…

Q: Which has a posterior flagellum that spits fluids that "burns" from its anal glands? A. Amblypygi B.…

A: Scorpions are the organisms that comes under the phylum arthropods in class arachnids. This are…

Q: Grylloblattodea is Paleoptera undergoes a pupal stage lives in high altitude or ice caves is the…

A: Introduction :- Grylloblattodea is an insect belongs to an order polyneoptera which is closely…

Q: In the flatworm, flame cells are involved in what metabolic process? a. Reproduction b.…

A: Answer is d.) Osmoregulation.

Q: Forams (a) are endosymbionts that live in many marine invertebrates (b) were responsible for the…

A: Answer is C) secrete many chambered tests with pores through whivh cytoplasmic extensions project.

Q: To acquire nutrients, spongesa. filter microorganisms from water brought in throughpores.b. use…

A: Sponges: Sponges are primitive multicellular animals. All are aquatic, generally marine but few are…

Q: From the name "fish tapeworm," one can conclude that the: a) larval stage of the tapeworm occurs in…

A: An intestinal infection caused by a parasite found in fish is known as fish tapeworm disease.  The…

Q: In terms of numbers of species, the most successful phylum on the planet is the a. Mollusca. b.…

A: All classes of organisms with the same body structures are grouped under phylum. The animal kingdom…

Q: completely wraps the cavity is called: a) coelom b) pseudocoelom c) acoelom d) Archenteron e)…

A: 5th answer is b

Q: You find a coelomate animal during a field trip and discover that the embryos undergo spiral…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is D

Q: Which pair shows endoparasites? a.)tick and mosquito b.)tapeworm and leech c.)leech and flea…

A: Parasites are the living organisms which are found in association with the host organism. Such an…

Q: Water strider is a representative specimen of Hemiptera, which one is NOT their trait? a. The wings…

A: Hemiptera is an order of insects, comprising over 80,000 species within groups such as the cicadas,…

Q: Which of the following statements regarding tapeworms is false?a) They absorb nutrients from the…

A: Platyhelminthes are a phylum of organisms, that are triploblastic, acoelomate and have bilateral…

Q: (a) Describe the coevolutionary pattern that systematists look for (b) Name the evolutionary…

A: Scientists in ecology and evolutionary biology frequently debate three types of coevolution: paired…

Q: The muscles of an entropneust (acorn worm) pericardium are responsible for, which of the following…

A: Acorn worm, also known as an enteropneust, which belongs to the class Enteropneusta, phylum…

Q: Nereis is not characterised by presence of a.Monoecious condition b.Ventral, paired, solid nerve…

A: Each body segment of Nereis has a pair of fleshy, lateral appendages called parapodia. They have a…

Q: Which form(s) of a cestode can be ingested by a human that eats infected pork or beef that is…

A: Cestodes are adult worms that live in the small intestine; they are normally well tolerated or…

Q: The function of the contractile vacuole in many freshwater protozoans is to: a) aid in mechanical…

A: Sponge cells and freshwater protozoans have contractile vacuoles as organelles. The bubble-like…

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: The sea slugs (nudibranches) may protect themselves by using which of the following methods?…

A: The predators are organisms that eat another organism. Prey is an organism that predators eat. For…

Q: Which of the following is NOT a characteristic of annelids?   A.they have a closed circulatory…

A: THE animals that belong to phylum annelida are called anellids  or called segmented worms . , they…

Q: A“negatively phototaxic” amphipod will swim:a.away from parasitic worms.b.towards parasitic…

A: Amphipods belong to crustaceans and are mostly detritivores or scavangers. They are aquatic and…

Q: A. Haemologbin B. Ecdysine C. Anticoagulant D. fibrinogen 19. One who specializes in all kinds of…

A: "Since you have asked multiple questions, we will solve the first question for you. if you want any…

Q: A miracidium is : a) unicellular b) a polyp c) a cestode d) a larval stage

A: A life cycle is a sequence of a cyclic process that occurs in an organism from an egg till it…

Q: look at the list below. Pick out the ones that are listed as part of the flat worms....   A.…

A: Worms refer to the invertebrate animals. They typically consist of long cylindrical tube-like…

Q: Which of the following organisms would NOT undergo gastrulation? a. fungi and sponges b. worms and…

A: ANSWER Which of the following organisms would NOT undergo gastrulation? a. fungi and sponges

Q: Dracunculus medinensis is a human-infecting nematode on the verge of extinction. What factors can…

A: Dracunculus medinensis, or Guinea worm, is a nematode that causes dracunculiasis, also known as…

Q: A friend or family member knows that you are taking Invertebrate Zoology and they ask you how they…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: a. Why is it necessary for most parasites to leave their host tocomplete the life cycle?b. What are…

A: Most of the parasites usually have more than one hosts for completing their life cycle. This gives…

Q: All of the following are true of Ctenophores except: A. Some species have long tentacles B. They…

A: Introduction:- ctenophores  are a phylum of marine invertebrates that live in sea waters all over…

Q: Why might farmers and gardeners be concerned about nematodes? A. Some for "tent like" egg cases in…

A: Nematodes These invertebrate roundworms may be found in a variety of settings, including marine,…

Q: Which form of Plasmodium passes from mosquitoes to people and causes infection? a) Trophozoites b)…

A: The Genus Plasmodium are unicellular eukaryotes and are obligate parasites of vertebrates and…

Q: Which is not a characteristic of animals    a. Have a blastula stage  b. Cell walls  c. Heterotrophy…

A: Animals are eukaryotic organisms that form the biological kingdom Animalia. Scientific study of…

Q: What is the function of the raphe in diatoms? a. locomotion b. defense c. capturing food d.…

A: Diatoms belong to a group known as microalgae. They are unicellular and live individually or in…

Q: In your garden you find a segmented animal with jointed legs. It has a distinct head capsule but the…

A: The tracheal system is the airway  which lead from larynx to bronchi.

Q: How does segmentation enhance annelid locomotion? a. Segmentation creates repeating body structures…

A: Ringed worm, earthworm, leeches etc. fall in the annelids category. Segmentation means division of…

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.