A. SEA STAR B. SEA ANEMONE C. FLATWORM 2 EMBRYONIC TISSUES 3 EMBRYONIC TISSUES PROTOSTOME DEUTEROSTOME D. EARTHWORM E. LOBSTER F. FISH G. FROG H. INSECT METAMERIC BODY

Q: A barnacle is a shelled______ . a. arthropod c. cephalopod b. gastropod d. crustacean

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: _____have scaleless skin and a heart with three chambers. a. Amphibians c. Ray-finned fishes b.…

A: Phylum Chordata with a characteristic notochord, pharyngeal gill slits, a post-anal tail, dorsal…

Q: Most insects have wings. Which is the other animal phylum that contains creatures with analogous…

A: Insects is a class of Arthropods. Organisms of this class belongs to the subphylum Hexapoda and…

Q: The two phyla in the Deuterostomia are a. Arthropoda and Nematoda. b. Brachiopoda and…

A: The Deuterostoma is one of the major groups, a superphylum in the animal kingdom. They belong to…

Q: Reptiles are much more extensively adapted to life on land than amphibians because reptiles a. have…

A: Answer is b.)  lay eggs that are enclosed in shells.

Q: an amniotic egg was crucial to the evolution of vertebrates because it provides the following to the…

A: The amniotic egg was the crucial evolutionary step that allowed the living organisms to breed…

Q: Which group of invertebrates is most closely related to vertebrates? A. molluscs B.…

A: Mollusca This is the second largest animal phylum. Are terrestrial and aquatic having an organ…

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: In a developing human, the first organ to form is thea. heart.b. brain.c. notochord.d. liver.

A: Answer- The organs starts to develop from the first month of the pregnancy in the humans.

Q: A major difference between birds and other reptiles is that birdsa. produce a shelled egg. d. care…

A: The group of heterotrophic, multicellular, and eukaryotic organisms that do not show the presence of…

Q: Along the notochord, segmented blocks of tissue that give rise to muscles, vertebrae, and connective…

A: Answer is d.) somites.

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

A: Answer is a.)  ecdysozoans.

Q: Describe the following general characteristics can be used to distinguish among Animal phyla: a.…

A:

Q: A characteristic unique to most species of mammals and no other vertebrates isa. endothermy.b. skin…

A: The group of multicellular, mostly motile, and heterotrophic organisms is called animals. They lack…

Q: A marine biologist catches a species of fish she has never seen before. Upon examination, she…

A: Pisces is a class that contains fishes. The members of pisces have two chambered heart with one…

Q: a) List down subclasses of Gastropoda b) Snails are distinguished by an anatomical process known as…

A:

Q: a ECHINODERMATA B b E MOLLUSCA F NEMATODA A CNIDARIA d

A: Metazoa or animals are multicellular eukaryotic organisms that are included in the Animal kingdom.…

Q: What characteristic is common to the flatworms, molluscs, and annelids? a. All have bilateral…

A: Organisms with a single plane of symmetry are called bilaterally symmetrical. Organisms which lack a…

Q: Characteristics that evolved in birds to allow for flight includea. reptilian-like scales on the…

A: Bird anatomy has unique adaptations mainly in flight. These are light weighted organisms with very…

Q: Monotremes are very primitive mammals because: O a. They lay eggs. O b. They do not provide milk to…

A:

Q: Which of the following characteristics is/are associated with amphibians? (a) amnion (b) placoid…

A: Answer- Amphibian is a class of animals that are the part of chordates and they are the first…

Q: Flatworms, annelids, and roundworms are all______ . a. arthropods c. protostomes b. aceolomate d.…

A: Vertebrates are organisms which possess backbone. They also possess notochord. Examples includes:…

Q: Segmentation, first seen in annelids, allows evolutionary advantages bya. allowing more fluid…

A: The segmented body is the most noticeable of the annelid phylum's identifying characteristics. The…

Q: Arthropods are the first phyla to possess: A)a brain B)an exoskeleton C)a complete digestive…

A: The organisms belonging to the phylum Arthropoda are characterized by the presence of pairs of…

Q: Unlike eutherians, both monotremes and marsupials(A) lack nipples.(B) have some embryonic…

A: Mammals are warm blooded, have hairs and mammary glands. They are homoiothermous. In the skin oil…

Q: You find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What…

A: The daughter cells are positioned in the grooves of the parent cells in a spiral division. The…

Q: ou find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What…

A: While the cleavage pattern has remained remarkably consistent among taxa, it has undergone numerous…

Q: Which of the following worms deposit their eggs in the perianal folds? a)tapeworms b)liver fluke…

A: These are all human parasitic nematodes or trematodes.

Q: 1. Divide the animals into two groups depending on if they possess vertebrae. 2. Divide the…

A: Since there are multiple questions in this particular question, I will answer the first three sub…

Q: What is this animal? It is a many-segmented arthropod with mandibles and two pairs of legs per…

A: Hi, Thanks For Your Question.  Answer : Correct Option Is A (Millipede) Explanation : Millipedes Are…

Q: An animal whose blastopore develops into a mouth and the second opening into the anus can be called…

A: Need to find the name of second opening in anus for the animals whose blastopore develops into a…

Q: Vertebrates and tunicates share(A) jaws adapted for feeding.(B) a high degree of cephalization.(C)…

A: Chordata is the largest phylum of subdivision- Deuterostomia. It was created by Balfour in 1880.…

Q: The pericardial cavity forms froma. evagination of the early digestive tract.b. the neural tube.c.…

A: The pericardial cavity has a small amount of serous fluid that helps to reduce lubrication and…

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: Hagfish, lampreys, sharks, and tuna are all chordates that can also be classified into which group?…

A: All chordates have endoskeleton with a backbone for the support of dorsal nerve cord and muscle…

Q: explain the meaning of the following characteristics of animals a)triploblastic b)bilateral…

A: Zoology is the part of science that concentrates on the animal kingdom, including the design,…

Q: Insects that are primitive have a life cycle that differs from advanced insects in that: O a. They…

A: Answer:  PRIMITIVE INSECTS = primitive means old and those from early ages. primitive insects are…

Q: ______include the only winged invertebrates. a. Cnidarians c. Insects b. Echinoderms d. Crustaceans

A: Introduction :- Invertebrates are animals that do not have or develop a vertebral column, which is…

Q: An animal whose development is marked by radial cleavage and enterocoely is ________. a. a…

A: Kingdom Animalia contains all animals. It is the largest kingdom of Animalia as compared to other…

Q: Among living animals, only birds have_____ . a. a cloaca c. feathers b. amniote eggs d. a…

A: Introduction :- The tissue that will become the female fetus's intestinal, genital, and urinary…

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: The Haversian canal pattern in dinosaurs suggests that they O A. were poikilotherms B. were similar…

A: Haversian canals are the channels found in bones when the cells replaces the bone with new material.…

Homeostasis

Homeostasis is a self-regulatory process through which different biological systems maintain constant internal environmental conditions to compensate for environmental changes. In human physiology, it is a process of self-regulating internal, chemical, and physical conditions at an optimal level for survival. The stability through homeostasis can be attained through dynamic equilibrium, in which there is a continuous change until it reaches its systemic conditions.