Which is more closely related to a human, an octopus or tunicate? Explain.

Q: Would a jellyfish be well adapted to living on land? Why?

A: In the non-chordates,they do not have the presence of the notochord, in any stage of their life,…

Q: What class of Chordates is considered as the most advanced and highly specialized?

A: Phylum Chordata belongs to the Kingdom Animalia and includes all the vertebrates, i.e., animals with…

Q: Is scoliodon a shark?

A: Elasmobranchii is a subclass of cartilaginous fishes that have five to seven laterals to ventral…

Q: What are the features that result in tunicate’s being classified as an animal, chordate and…

A: Urochordata are also known as tunicates because outer body of tunicates is covered by tunic which is…

Q: Compare and contrast insect with arachnids and myriapods?

A: Arthropods are invertebrate animals having an exoskeleton, a segmented body, and paired jointed…

Q: How do  invertebrate chordates differ from vertebrate  chordates? Elaborate.

A: Introduction A Chordate Is A Member Of The Chordata Phylum. At Some Point During Their Larval Or…

Q: Which Animals Are Chordates?

A: Animals are multicellular eukaryotic organisms belonging to kingdom Animalia that are heterotrophic,…

Q: What are the characteristics of a female mud crab ( Scylla serrate) on its carapace?

A: Carapace is meant for the protection and it vary in size and is different in males amd female.it is…

Q: How is the large size of some cephalopods related to the type of circulatory system they present?

A: Mollusca is the largest marine phylum of the animal kingdom that is characterized by a mantle with a…

Q: make a labeled drawing of the lateral view of the skull of a crocodile

A: The skull of the crocodile is diapsid just like all other reptiles. It has two openings on each side…

Q: What characteristics is the ancestor of tetrapods thought to have had? Choose all that apply

A: Tetrapods  Tetrapods are the group of animals that have four legs. It the major group of animal and…

Q: What evidence suggests that four-legged animals came from fish?

A: Evolution is a slow process which explains that how the species changes with time to survive in…

Q: A. Which type of Armadillo belongs to the same phylum as Tityus? Give both the scientific name and…

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

Q: Which body region of a crayfish is most obviously segmented?

A: Abdomen is the body region of a crayfish that is segmented.

Q: What characteristics make a pig a chordate?

A: Chordate Chordates belong to the phylum Chordata. During some period of the life cycle of chordates,…

Q: What structures did amphibians develop to support the weight of the body against the force of…

A: Amphibians, as their name indicates, are class of organisms that  have adaptations suited for both…

Q: If snakes are limbless, how can they be consideredtetrapods?

A: The organisms of the ecosystem have significant properties. Depending upon the different features of…

Q: Contrast the skeleton of an echinoderm with that of an arthropod.

A: The kingdom “Animalia” has several phyla (taxonomic rank: phylum). The organisms of this kingdom are…

Q: List the characteristics that evolved in amphibians to be able to live on land.

A: Amphibia is a class of vertebrates which spend some part of their life cycle on the land and the…

Q: jawless fish What is the function of the notochord?

A: Ostracoderms are extinct fishes of Paleozoic. The first evolutionary character that appeared in…

Q: Which chordates are craniates, and which of those are alsovertebrates?

A: Craniates are a group of chordates that possess a craniate skull made up of hard bone. All craniates…

Q: Which group of hadrosaurs had crests?

A: Hardradosaurids means bulky lizards. They were the family of herbivores dinasaurs. They were the…

Q: Urchins and sand dollars lack arms. How do they move?

A: Sea urchins and sand dollars are both belong to the phylum Cnidaria and they are fully marine.  Sand…

Q: What term should we use to describe the evolution of body types in the Anole lizards?

A: A change in the characteristics of species over several generations to adapt to environmental change…

Q: Threespine sticklebacks that invaded freshwater lakes have lost their pelvic spines. What other…

A: Threespine sticklebacks (Gasterosteus aculeatus) are commonly found in the ocean. They are…

Q: In what environment is long leg length an advantage for a lizard? E) Why have anoles evolved…

A: Lizards are reptiles distributed in all parts of the world, mostly four-footed, and use their…

Q: Describe lower chordates

A: The first three sub-phylum present in the Phylum Chordata are considered as the Lower Chordates.…

Q: Identify structure A in this image of the dissected shark (view is of roof of mouth).

A: The shark is a cartilaginous fish that belong to the class Chondrichthyes. They have a two-chambered…

Q: To describe the feature that distinguish chrodates from other animals.

A: In the kingdom Animalia, there are two taxa: chordates and vertebrates. Animalia is a kingdom that…

Q: Offer a description of an adult tunicate that would identify it as a chordate, yet distinguish it…

A: Chordates belong to the phylum Chordata.The Chordates in their full life cycle have one of the…

Q: Compare the body plan of a lamprey and a shark

A: Sea lamprey have a tendnecy to prey on the large fishes as well as the shark. These both organisms…

Q: What class do sea turtles belong? How do you know?

A: Vertebrates originated in the ocean. Land vertebrates descended from Bony fishesEvolved two pairs of…

Q: What is a body structure that is found in Bony fish but not in Cartilaginous fish?   Teeth Gills…

A: The animal kingdom is diverse constructing millions of species. Fishes are one group of vertebrates…

Q: Name and describe two adaptations that make squid good predators.

A: Squids have some unique adaptations. Squid are marine cephalopods with elongated bodies, large eyes,…

Q: Adaptations to predation in cuttlefish (and by extension in cephalopods)

A: The change in the heritable characteristics of the species across many generations is called…

Q: Which do fish have instead of arms and

A: The aquatic animals have special organs to breathe in the water They also have special organs to…

Q: Explain why are hemichordates classified "not true Chordates

A: The phylum Hemichordata includes worm-like marine organisms with a proboscis that grows out of the…

Q: How does Anterior posterior axis gives chordate and higher non chordates a bilateral symmetry

A: Organisms having bilateral symmetry have a single plane of symmetry. The plane is called sagittal…

Q: What changes in egg design allowed reptiles to lay egg on land?

A: The theory of evolution by natural selection suggests that due to the dissimilarities in their…

Q: What animal do you think tyrannosaurus rex would eat?

A: Tyrannosaurus rex are the large theropods.Tyrannosaurus are a bipedal dinosaur who have a huge skill…

Q: Explain How will you compare and contrast the skeleton of fish

A: The embryos of modern fish and tetrapod look similar . Both modern fish and tetrapod are vertebrates…

Q: Make some observations about archosaurs as a group. What features do they have in common that make…

A: The Archosaur is a subclass that consists of birds and reptiles (the crocodiles) and a few other…

Q: Explain how the saltwater crocodile is different from other crocodiles.

A: Question -  Explain how the saltwater crocodile is different from other crocodiles.

Q: Sessile adult tunicates lose the notochord; what does this suggest about one function of this…

A: A tunicate larva has the notochord, nerve cord, and tail. After few days of swimming after hatching,…

Q: What is the role of elaborated cloaca in reptiles?

A: Reptiles are characterized by the presence of four limbs and uric acid as the nitrogenous waste…

Q: What are two external structures of the frogs in the picture? How do they help the frogs survive?

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

Q: In what ways were therapsids adaptively superior to the amphibians and reptiles that preceded them?

A: Therapsids are the ancestors of present-day mammals and their related ancestors. They represent an…

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.