How do primitive chordates like urochodata and cephalochordata; i. escape predators ii. How do they reproduce  iii.how do they

Q: 1. If you disregard cryptobiosis, would you consider tardigrades successful? Why or why not?

A: Tardigrades or water bears may be terrestrial or aquatic in nature. By a phenomenon called…

Q: What adaptation did lobe- finned fish have that was different than the previous organisms? A. lobes…

A: Introduction  Fish are aquatic vertebrates that lack limbs with digits, such as fingers or toes, but…

Q: All arthropods 1. Undergo complete metamorphosis 2. Have jointed appendages 3. Molt 4. Have…

A: Arthropod, any member of the phylum Arthropoda are the largest phylum of animal kingdom. They…

Q: hemichordates are said to be the missing link between the invertebrates and vertebrates.

A: A)INVERTEBRATES:- These are those organisms which are without any strong structural support means…

Q: Which of the following is not a member of the phylum Chordata? a. Cephalochordata b. Echinodermata…

A: Chordate can be defined as the animal that will belong to the phylum Chordata. There is some period…

Q: Which of the following classes of arthropod possess chelicerae? a. Chilopoda b. Crustacea c.…

A: Answer is d.) Chelicerata.

Q: How do members of the phylum Chordata differ from other animal phyla? Explain in 10 sentences.

A: According to the Linnaeus system, scientists classify animals and plants based on physical features…

Q: Which of the following characteristics is not seen in the phylum Platyhelminthes?a. cephalizationb.…

A: Platyhelminthes or flatworms have the following characteristics - Acoelomate, bilateral symmetry,…

Q: Which phylum do you belong to? 1. Echinodermata 2. Platyhelminthes 3. Annelida 4. Porifera

A: Linnaeus introduced system of taxonomy which depends on seven levels of classification grouped…

Q: Closest to Chordata 1. Echinodermata 2. Platyhelminthes 3. Annelida 4. Porifera 5. Chordata 6.…

A: The animals of the phylum Chordata possess a notochord, a dorsal nerve cord, an endostyle,…

Q: First with body segmentation 1. Echinodermata2. Platyhelminthes3. Annelida4. Porifera5.…

A: The kingdom Animalia is classified into vertebrates and invertebrates. Some of the invertebrate…

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: Venom glands may be adaptations of modified ovipositors for venom injection in hymenopterans....what…

A: Answer: VENOM = It is the poisonous substance produced by many animals and insects which when…

Q: Which of the following structures is not a component of the watervascular system of an echinoderm?…

A: The group of multicellular and heterotrophic organisms belonging to the kingdom Animalia is called…

Q: Arthropods usually have a distinct head. How would you define a “head”? What are the advantages and…

A: Arthropods are the large invertebrate group. Insects, millipedes, shrimps, centipedes, and, crabs…

Q: Torsion is a unique characteristic of the a. bivalves. b. gastropods. c. chitons. d.…

A: Every group of organisms has some special characteristics that make them unique from others.…

Q: What organisms can survive without a mouth, digestive system, oranus?a. cnidarians  b. rotifers  c.…

A: Most of the animals have complete digestive system. The food is taken by mouth and waste is excreted…

Q: Label the parts that are visible of these rotifers and acanthocephalans: 1. Rotifer from class…

A: Rotifers are microscopic aquatic animals belonging to the phylum Rotifers. These are usually found…

Q: The chelicerates have 2 pairs of antennae (True/False)?

A: Arthropods dominate the protostome branch of the kingdom Animalia and are eucoelomate protostomes.…

Q: 7. Define cephalization. What is its relationship to bilateral symmetry?

A: Question-7. Cephalization refers to the evolutionary trend in which animals exhibit an increased…

Q: What is the primary characteristic of the Ecdysozoa (Nematoda + Arthopoda)?

A: Answer: Ecdysozoa : These are the superphylum which includes arthopoda and nematoda , which have…

Q: How does segmentation and having a fluid-filled body cavity confer certain advantages to annelids…

A: Segmentation in annelids is highly adaptive. Annelid body is made of repeating units or segments…

Q: Why was the medusa stage lost in some cnidarians? Do you think it is more advantageous

A: Solution : In the phylum Cnidaria, which includes jellyfish and sea anemones, polyp and medusa are…

Q: What is meant when it is said that beings of the phylum Annelida are vascular beings? From which…

A: Annelids are segmented worms. They live in a variety of habitat. They have a complete digestive…

Q: for you is the most important adaptation of arthropods that allowed them to flourish in the…

A: 1.Arthropods are animals with jointed appendages and a chitinous exoskeleton. They are adapted to…

Q: In which of the following aspects are nematodes more complex than flatworms?    a. External…

A: Nematodes are also known as round worms. Flatworms belong to phylum platyhelminthes.

Q: Arthropods are;

A: The correct option is B.  Protostomes .

Q: Can have both a medusa stage and a polyp stage (both in water) 1. Echinodermata2. Platyhelminthes3.…

A: The kingdom Animalia is classified into vertebrates and invertebrates. Some of the invertebrate…

Q: Examine this whole mount of Branchiostoma (amphioxus) What is the function of this notochord? What…

A: It is an example of marine invertebrate-lancelets. Falls under phylum Chordata and subphylum…

Q: 1.Explain how crocodilian morphology makes it an ideal ambush hunter.

A: Crocodiles are reptiles which are mostly habitat in hotter tropical regions of the world. This large…

Q: 1. Define sessile. Name an invertebrate with a sessile adult stage.

A: The term "sessile" is employed in biology to denote the absence of self-locomotion in an organism.…

Q: 8. What is the difference between an open and a closed circulatory system?

A: The two prevalent circulatory systems in various organisms are the open and closed circulatory…