Describe the early jawed fishes.

Q: Why the enteropneusta are not classified in chordates?

A: Enteropneusta belongs to phylum hemichordates. Few properties of hemichordates: They are…

Q: Contrast the differences between flatworms andannelids.

A: In terms of biology, the phylum can be defined as the level of classification or taxonomic rank that…

Q: Contrast the characteristics of crocodilians with those ofsnakes.

A: Snakes and crocodilians are reptiles having keratinized scales on the skin. They have well-developed…

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: Write shorts notes on how coelenterates defend themselves when swimmers ventures into their habitat

A: Coelenterates have tissue grade body and they are made up of few cells which alert them when the…

Q: Which Animals Are Chordates?

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

Q: Describe the major vertebrate adaptations that arose in fishes andwere adaptive on land.

A: Vertebrates are the next subcategory of chordates. These organisms are characterized by the presence…

Q: Earthworm Compare the posterior segments to the anterior segments in a earthworm internal features

A: An earthworm is a terrestrial invertebrate belonging to the phylum Annelida. They exhibit a…

Q: Write a note on Earthworm segmentation ?

A: Clitellum is the thick section of worm body. It secretes a thin film of mucus, which together with…

Q: Is there any genetic evidence linking lobe-finned fish and amphibians

A: Lobe-finned fishes and amphibians are closely related and connected through a common ancestor which…

Q: compare the evolution of bony fish and jawless fish.

A: During the Cambrian explosion approximately 530 million years ago, fish began to evolve. The early…

Q: Recognize characteristics that distinguish fish from othervertebrates.

A: A vertebrate is known as the animal with the spinal cord that is covered with the help of cartilage…

Q: about parasitic cruataceans of farmed fish

A: Parasites are small organisms that live on other organisms called "hosts" and depend on them for…

Q: Using appropriate examples, describe the two lineages of bonyfishes and the anatomical traits that…

A: Bony fishes are the fishes that consist an endoskeleton made up of bones. The fishes are also known…

Q: tabulate the morphological differences of soft-rayed and spiny-rayed fishes.

A: Introduction  Morphological differences refer to differences in the form and structure of organisms…

Q: Give an account of the body wall of lizard?

A: The lizards are cold-blooded chordates that belong to the class of reptiles. They are native to…

Q: List the advantages of segmentation in the annelids.

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

Q: How do chordates reproduce?

A: Chordates are the animals that have a notochord, a nerve cord, pharyngeal gill slits and post anal…

Q: Identify the four features that distinguish chordates fromother animal phyla.

A: Chordates are the members of the phylum Chordata. This phylum comes under the kingdom Animalia.…

Q: What are lobe-finned fishes ?

A: Fish are oceanic, craniate, gill-bearing creatures that don't have appendages with digits.  The…

Q: Is tiktaalik more closely related to ray-finned or lobe-finned fish?

A: The question is asking about the evolutionary relationship between Tiktaalik, a prehistoric…

Q: Compare and contrast the characteristics of a jawless fish to those of a jawed fish.

A: Subphylum-Vertebrata can be divided into two Superclass. They are Superclass - Agnatha and…

Q: How do lobe-finned fishes differ from ray-finned fishes, and why were the ray-finned forms unlikely…

A: Lobe-finned fishes and ray-finned fishes are osteichthyes, popularly referred as bony fish . They…

Q: List the features that distinguish amphibians from fish.

A: The Chordata is the phylum of highly-evolved animals that includes vertebrates, urochordates…

Q: Describe the characteristics of the annelids

A: Annelids is a phylum under Kingdom Animalia.  1. They exhibit organ-system level of body…

Q: Explain about ray-finned fishes ?

A: ray-finned fishes, is a class of bony fishes. The ray-finned fishes are so-called because their fins…

Q: Explain how coelenterates defend themselves when swimmers venture into their habitat

A: Coelenterates are aquatic animals that have a tissue level of organization. They are mostly marine…

Q: Crayfish Compare the walking legs and swimmerets of the crayfish

A:

Q: Explain the differences between the two types of shellfish and provide three examples of each.

A: Shellfish is a colloquial and fishery name for aquatic invertebrates with exoskeletons that are…

Q: Describe key adaptations of aquatic gnathostomes

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

Q: Explain how lungfishes are adapted to survive out of water

A: Animals are multicellular organisms. Animals are member of the kingdom Animalia. Fish is an aquatic…

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: Define paired pharyngeal gill slits?

A: The chordates are the members of phylum Chordata. They include humans and various other vertebrates.…

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.