Why do you think choanocyte chambers are so much larger than the other canals in most sponges? Think about how a sponge would benefit from large chambers in terms nutrient and gas exchange, and excreting wastes. Explain your answer.

Q: Explain the components and functions of the visible cell layers

A: Cell is the basic membrane bound unit that contains the fundamental molecules of life and of which…

Q: Describe two types of canal system for sponges including a class representative for each system

A: The canal system is a distinguishing feature of all sponges. It is the perforation of the body…

Q: Define the following: pedicellariae, madreporite, respiratory tree, Aristotle’s lantern, papulae,…

A: Pedicellariae is an important organ of echinoderms. It resembles a small wrench- or claw-shaped…

Q: Planaria lack specialized gas-exchange organs. How do you think planaria accomplish this task?

A: Planarians belong to Lophotrochozoan branch of protostomes.

Q: egulate the surfac

A: Sponges are a member of phylum porifera. Sponges have four different types of cells Choanocyte…

Q: Describe how sponges defend themselves against predators.

A: Sponges belong to the phylum Porifera. They are mostly marine. They are mostly present in-depth of…

Q: Provide two characteristics of the digestive tract for an animal that eats mainly termites

A: Termites are eusocial insects belonging to order Blattodea.

Q: Compare the body structures and functions of a flatworm and a cnidarian in terms of MOVEMENT and…

A: Flatworms are more complex than cnidarians. Cnidarians have two layers of cells, the ectoderm and…

Q: What feature of body-wall muscles in nematodes requires a high hy-drostatic pressure in the…

A: The nematodes also known as roundworms constitute the phylum Nematoda. These  are the most…

Q: Sponges are Radially symmetrical Bilaterally symmetrical Asymmetrical Dorso- ventrally…

A: The animals can be classified into three distinct classes depending on their body symmetry:…

Q: Compare the hydra to obelia in terms of life cycle features and ecological attributes. If living…

A: Answer: HYDRA AND OBELIA = These are the aquatic simple living organisms belongs to hydrozoa groups,…

Q: What is cutaneous respiration? Give 3 examples of air-breathing fishes.

A: Introduction  Respiration is the important phenomenon by which the living organism performs gaseous…

Q: Matching: (23-27) Match the specialized cell/organ to its function: 23 Colloblast 24. Choanocyte 25…

A: Sponges belong to phylum Porifera, which means pore bearing species. They can not move as they are…

Q: Which structure of the ray-finned fishes allows for breathing in water while the fish is stationary?…

A: The fishes are found in the super class Pisces. They belong to chordates.

Q: In arthropods, the tracheal system isa. a unique set of structures that function in ingestion and…

A: Arthropoda belongs to the Kingdom Animalia and is known for having segmented bodies with appendages.…

Q: What specialized cells of tentacles aid in capturing prey?

A: Several organisms such as mollusks, cnidarians, ctenophores, bryozoa, and cestodes contain…

Q: Do sponges have nervous, circulatory and excretory systems?

A: Though all members of Kingdom Animalia are multicellular, all of them do not exhibit the same…

Q: Starfish Ampulla close-up How does the tube feet able to extend and retract? How do they act as…

A: When muscles surrounding the ampulla contract, fluid inside the bulb moves down into the tube foot,…

Q: Explain how the system of pores operate in a typical sponge.

A: Sponges are unusual animals in that they lack definite organs to carry out their various functions.…

Q: The arms and tentacles are developed from what kind of mollusk structure? In two paragraphs,…

A: After the Arthropoda, Mollusca is the second-largest phylum of invertebrate creatures. Mollusks are…

Q: Discuss canal system in sponges?

A: Sponges are also called Porifera and are primitive multicellular organisms with a cellular grade of…

Q: Briefly describe the osmoregulatory system, the nervous system, and the sense organs of…

A: In the living world, we see a large number of microorganisms, animals and plants. These organisms…

Q: How do muscle cells enable cnidarians to function in ways that sponges cannot?

A: Introduction :- Invertebrates such as jellyfish and corals are cnidarians. They are members of the…

Q: In cephalopods contraction of _____________________of the mantle force water from the mantle cavity…

A: Give options.  radial----inhalant valve circular-----inhalant valve Radial----funnel (siphon)…

Q: Differentiate the three types of canal systems of sponges as to structure, types of cells, and the…

A: Spongen  They are exclusively marine animals live inside ocean floor.

Q: Indicate the course taken by water current in each body plan: 1. Asconoid 2. Syconoid 3.…

A: In the Phylum Porifera ,there are mainly three types of canals present in the sponges.They are…

Q: The excretory structure of the earthworm is, 1. A protonephridium 2. An ananephridium 3. A…

A: Numerous invertebrates have nephridium, an organ used for excretion. Two varieties of nephridium…

Q: Differentiate the three types of canal systems in sponges. Which canal system is the most efficient…

A: Sponges are sessile metazoans which belong to phylum porifera & have bodies made of pores all…