The scolex primarily acts to: O provide space for the brain acts in place of the pharynx hold egg and sperm cells O provide surface area for gas exchange O produce the egg and sperm cells hold the parasite within the host

Q: Which of the following are asexual stages of the parasite? f Select one or more: O Ring stage O…

A: INTRODUCTION Malaria Malaria is caused by plasmodium parasite.

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: Which of the following are used by spiders to pick up sensory information from the surrounding…

A: Senses are very important in perceiving the changes in the outer world. Spiders are arachnids that…

Q: Entamology Check your understanding: 3. a. Name the substance that blocks the metamorphosis of…

A: The study of insects and their relation to humans, the climate, and other species is entomology. In…

Q: What color is this Dino, is not just grey or is that red or brown? Is their names of them I’m asking…

A: The color of the dino is a mix of colors.

Q: What changes to the mollusc body plan enabled soft-bodied octopus to thrive (i.e., avoid predation)…

A: Molluscs show a great variety of diversity yet they have certain features in common. The diversity…

Q: Hookworm undergoes lung migration phase in its life cycle O False true

A: TRUE

Q: Venom glands are adaptations of I)salivary glands ii) Sweat glands iii) peculiar cell types to…

A: Venom is highly evolved saliva which the snake uses to both kill as well as digest its prey. There…

Q: The parasitic helminths that are most likely to be found inbile ducts, lungs, and blood are the:(a)…

A: Helminth infestation causes morbidity and mortality: it compromises nutritional status, affects…

Q: Which of the following is an example of a zoonose? a) An open sewer system next to a vegetable farm…

A: We interact with animals on a daily basis. Different goods made from animal products are used by…

Q: The organ that functions to coat annelid worms with a mucus-derived cocoon is the uterus O clitellum…

A: Annelid worms These worms belong to the phylum Annelida. These are also called segmented worm, that…

Q: You spent time in a body of freshwater in the tropics and sometime later become fatigued and develop…

A: Answer The classes Cestoda, Trematoda belongs to the phylum Platyhelminthes. It consists of…

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: A cleidoic egg is one that. (mark all that apply) has no yolk has been adapted for being laid on…

A: Since we only answer 1 question in case of multiple question, we’ll answer the first question as the…

Q: Which word-part is not defined correctly? A. echino = radial B. pod = foot C. arthro = jointed D.…

A: Different words have different meaning in biology. These terms has different meaningful terms in…

Q: Ticks are regarded asa. monophagous endoparasites.b. monophagous ectoparasites.c. polyphagous…

A: Monophagous parasites means, parasites which feed on one species or a few very closely related…

Q: Burrowing into the sediment and pulling in se (like clams do) is called O carnivorous feeding O…

A: Food of the clams belonging to the group bivalves usually consists of phytoplankton, zooplankton,…

Q: In spiders, excretions of wastes from the body is handled by (mark all that apply) the Malpighian…

A: Spiders are members of the chelicerates group, the arachnids. They are the largest order of…

Q: The echinoderm blood vascular (hemal) system is involved in gas transport O nutrient transport…

A: The echinoderm blood vascular (hemal) system is invoved in gas transport and nutrient transport.

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: The dauer stage of worm development occurs:   1) when there is ample food   2) when there is…

A: Worms are the organisms of the animal kingdom that lack eyes and limbs. they have a cylindrical…

Q: clitellum is the: Hirudina Cestoda Oligochaeta Platyhelminthes Permoclitellata All lack a permanent…

A: Clitellum is a glandular and unsegmented region of earthworms. It is situated near the head region…

Q: Brood parasites ensure their reproductive success by the following mechanisms EXCEPT O a. making…

A: Have you seen a cuckoo bird's nest. I guess no! Cuckoo bird's seldom build a nest. These birds lay…

Q: The feeding rosette in the sediment is characteristic of the acorn worm in the pic above. Which of…

A: Acorn worms are invertebrates that are mainly found living in seabeds. Their body is divided into…

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: If an earthworm were exposed to an acid and had damage to it's setae/chetae, then that earthworm;…

A: Setae of annelids are bristles that stiff on the body. In case of earthworms, they help in the…

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: A contractile vacuole_____ . a. captures prey c. expels water b. stores food d. detects light

A: Introduction Contractile vacuole is a regulating organelle found in freshwater protozoa and lower…

Q: A. Compare T. solium and T. saginata on the basis of - 1. Length 2. Scolex 3. Gravid segment 4. Egg…

A: Taeniasis is a kind of worm or parasitic infection that affects humans. This infection is caused by…

Q: How does eating Regimbartia attenuata beetles affect frogs? It has no effect on the frogs. BIt makes…

A: Answer- Regimbartia attenuata beetle is also called as Eaten water beetles.

Q: Which of the following is an example of a parasite?   A. tapeworm   B. tick   C. tongue worm   D.…

A: Any organism that take nutrition from other host organisms is known as parasites. They can be…

Q: ply** Endoparasite colonize new hosts more easily than ectoparasites Endoparasites often have a…

A: Endoparasites are the parasites which live inside in its host. Endoparasites is of two types.…

Q: Negative opinions towards insect consumption can be traced back to letters written by who? General…

A: The class Insecta is the most varied and numerous of the arthropod groupings. The insects and…

Q: Lamellibranch bivalve gills have the following functions: Particle trapping O Particle sorting Gas…

A: Gills are respiratory organ of aquatic organisms which help them in respiratory function  Types of…

Q: The visceral mass of gastropods take a 180 degree turn during development. This causes the anus to…

A: Parthenogenesis is the reproduction without actual meiosis and fertilization. It occurs in lower…

Q: You spent time in a body of freshwater in the tropics and sometime later become fatigued and develop…

A: It is considered as second most devastating infection after malaria by WHO.

Q: What part do Balanus use to maintain its position in its natural environment? a. Podia b. Suckers…

A: Balanus It refers to the genus of barnacles which belongs to Balanidae family. Their bodies are…

Q: Ctenophores are carnivores. O True False

A: The animals are characterized by different attributes like presence of cilia, combs, pores, fins,…

Q: How would you classify the following organism? A flesh fly (Anolisomyia) whose larvae develop inside…

A: The condition in which flies lay eggs in vertebrates that act as hosts for the development of larvae…

Q: In ascidians the lateral cilia spread the mucous net across the inner surface of their pharynx. True

A: Ascidians is a polyphyletic class in the subphylum Tunicata. They are characterized by a tough outer…

Q: Nematodes (roundworms) mainly live as: O a. Herbivores. O b. Plant parasites. O c. Predators. O d.…

A: Nematodes (also known as roundworms) are slender worm species that belong to the phylum Nematoda.…

Q: Read following statements w.r.t. cockroach and choose the option which correctly states true and…

A: The phylum arthropods are unique in a way due to the presence of exoskeleton and segmented body.…

Q: A person has been cured of malaria, after 2 months a malarial attack has developed, although the…

A: Malaria is a vector-borne disease caused by the bite of infected anopheles mosquito, carrying the…

Q: The mosquito feeds on blood, which is required fordevelopment of .a. male, larvae b. male, parasites…

A: Mosquito feed on the blood and transmit pathogens for diseases.

Q: Examine specimens of arachnids. Study the different body regions and parts.  Label drawings…

A: Arachnids are insects , harvestmen , mites and ticks , and scorpions. All arachnids have eight legs,…

Q: Male worms can identified by:

A: The correct option is 4.  The presence of a Tail fan  Male worms differ from hermaphrodite worms in…

Q: With Platyhelminthes, which of the following do we see for the first time, evolutionarily speaking.…

A: Platyhelminthes are the flat worms. They are found in the animal kingdom.

Parasitic infections

A parasite is an organism that lives in the body of another organism and obtains food at the expense of the host. There are two kinds of parasites they are internal and external. An internal parasite lives inside another organism and is known as endoparasite. An external parasite lives on the body surface of the host and is known as an ectoparasite.