Echinoderms are a diverse group of marine organisms. The name means "spiny-skin" and is appropriate because the internal skeleton of the animals in this group has spines, called ossicles, that usually protrude through the skin.. Echinoderms have a unique water vascular system that includes a network of tubes that connect many hollow tube feet. Water flow is controlled by muscle contractions and directs the movement and feeding of these animals. 1. Observe the display of specimens at the counter and answer the questions below. a. Name five examples of animals that belong to this phylum. 1. 2. 3. 5. b. What type of symmetry does this phylum exhibit?

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: Increased acidity makes it more difficult for invertebrates to build structures that contain calcium…

A: The organisms that have vertebral column are called vertebrates. However, the organisms that do not…

Q: The haemal system (BVS) of echinoderms functions in part to transfer nutrients. Group of answer…

A: Hemal system present in echinoderms like starfish etc.

Q: o be able to classify an animal as a reptile list 5 characteristics

A: Reptiles : Reptiles belong to kingdom Animalia , Phylum Chordata , They consists of turtles,…

Q: Explain why amphibians are sometimes called “canaries in acoal mine.”

A: Sentinel species are the animals that used to find out the risks to human beings by providing and…

Q: Due to human activities more carbon dioxide (CO2) is dissolving into the air, the ocean takes up…

A: Due to increased human activities that are causing more carbon dioxide (CO2) to dissolve into the…

Q: Due to human activities more carbon dioxide (CO2) is dissolving into the air, the ocean takes up…

A: Introduction Ocean acidification is a process of decreasing the pH of the ocean (increased acid) due…

Q: Which feature is found only in gnathostomes?     both pelvic and pectoral fins or appendages…

A: Gnathostomes are those organism who have jaws in their body. It includes two groups: Pisces: It…

Q: Which statement about crustaceans is true? There are very few marine species. They lack a carapace.…

A: 5 kingdom classifications is a type of classification in which living organisms are classified into…

Q: Humans are members of the phylum chordata. As such they have a notochord. The notochord in humans;…

A: All the chordates possess the following diagnostic characters either in the embryonic or adult…

Q: Nematodes are acoelomate animals (True/False)

A: Acoelomate animals are those animals which have no coelom or body wall present in them. Thus a…

Q: An arthropod that lacks mouthparts for chewing food is called what?

A: Most of the mouthparts in arthropods represent modified and paired appendages which may be in past…

Q: Describe amphibian circulation

A: Amphibians as the name suggests they can live on land as well as in water. They are tetrapod…

Q: Compare and contrast three features of an exoskeletonand an endoskeleton.

A: The structural support is being provided to the body by the skeleton. The skeleton provides a key…

Q: Despite their multiple adaptations, amphibians are still restricted to moist environments. Which are…

A: Amphibians are tiny vertebrates that require moisture to survive, such as water. Frogs, toads,…

Q: To enlist: The three functions of the water-vascular system of echinoderms.

A: The water vascular system of echinoderms is essentially a system of fluid-filled canals that extends…

Q: give the function of these stingray parts. 1. eye 2. snout 3. mouth 4. nostril 5. spiracle 6.…

A: Across the world, temperate and tropical marine and freshwater ecosystems are home to the…

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: describe the movement of a millipede as it crawls

A: Answer :  Centipede Movement  It can easily move around in different directions by coordinating the…

Q: Describe the type of movement and musculature in the following invertebrates using the table below.…

A: The Animals who don't have backbone are known as invertebrates.. They do not have any bones in their…

Q: Explain how the hydrostatic skeleton of annelids helps them to burrow.

A: In annelid worms, there are two internal hollow body cavities, known as coelom The coelom is…

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: A rise in atmospheric carbon dioxide increases ocean acidity, making it harder for animals to build…

A: Many marine invertebrates depend on equilibrated chemical conditions and pH levels in the ocean to…

Q: Clams are a type of... Group of answer choices echinoderm cephalopod arthropod gastropod bivalve

A:

Q: Give the integumentary organs of the following representative chordates: Acorn worm Sea squirt…

A: An integumentary system is a group of organs that form the outer layers of an animal's body. It…

Q: Which phylum of animals has a water vascular system connected to tube feet? O Chordata Echinodermata…

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Q: DNA obtained from the indicated donor strains is used to TRANSFORM the indicated recipient strains.…

A: The correct answer is option C. Arginine The arginine locus is closest to serine.

Q: give 2 examples of animals with exoskeleton and endoskeleton  where the hydrostatic skeleton is lost

A: A skeleton is the structural framework that holds an animal's body together. There are three sorts…

Q: Unlike the turbellarians earthworms have a complete digestive system. This means that;

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

Q: ll mollusks have a muscular foot, mantle and visceral mass. Look for these structures and compare…

A: Mollusks are included in the phylum Mollusca. They are soft-bodied invertebrates. They are enclosed…

Q: Which of the following conclusions is supported by the diagram and the data table?  Number of cell…

A: The animal kingdom is the largest kingdom amongst the five kingdoms consisting of all animals.…

Q: Imagine if mermaids are real. What are their biological and Physical demands (LOCOMOTION, BREATHING,…

A: Mermaids are hypothetical and imaginary organisms specially they are like the females. These are…

Q: Imagine if mermaids are real. What are their biological and Physical demands (CORRECT SHAPE AND…

A: The aquatic ecosystem is a critical component of the Earth's thriving process and is required for a…

Q: CLASS AMPHIBIA-SALAMANDERS, FROGS, & TOADS The hind limbs of the frog are much longer than the…

A: A frog is a tailless, short-bodied amphibian belonging to the big carnivorous group of species. A…

Q: Earthworms move through coordinated and peristaltic contractions of their body wall muscles. When…

A: We need to discuss about how earthworms move through coordinated and peristaltic contractions of…

Q: Agnathans (Jawless FIsh) Look at the image that is attached to this question to answer the…

A: The Agnatha comprises of the jawless fishes, the most primitive group of surviving vertebrates.…

Q: Fill in the blanks: is a large phylum of animals that includes the vertebrates together with the sea…

A: Hi, Thanks For Your Question.  Q. 1 Answer : Chordata. Explanation : Chordata Is A largest Phylum Of…

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.