What is the evolutionary significance of the fifth gill arch of bony fish no longer supporting a gill filament and functioning for respiration?

Q: What are respiratory pigments? What is the respiratory pigment present in some arthropods? Which is…

A: Gas exchange involves the inhalation of oxygen and removal of carbon dioxide through lungs. For…

Q: Which of the following is the correct classification for the following invertebrate animal: These…

A: Animal are those organism who don't have cell wall in their cells. They can move from one place to…

Q: Branchial arches of the shark support the gill  pouches and each one consists of five cartilagous…

A: Sharks are a gathering of elasmobranch fish known by a cartilaginous skeleton, five to seven gill…

Q: Only eight species of lobe-finned fishes are alive today, remnants of a group that flourished in the…

A: The Devonian Period occurred from 416 million to 358 million years ago. It was the fourth period of…

Q: 1) Several morphological features of the bird respiratory system allow for more efficient gas…

A: The avian respiratory system is different from that of other vertebrates, with birds having…

Q: What is the taxonomic name for the superclass (of bony fish) that reflects the presence of a bony…

A: Introduction  All bony fish, which are identified by possessing a bone skeleton, fall within the…

Q: Very few fossils of Sahelanthropus have been found up until now, therefore we do not have a complete…

A: The study of ancient hominin species is a fascinating endeavor that often relies on the recovery and…

Q: What are two noticeable morphological differences between the sharks and ray-fin fishes? What is the…

A: Step 1 Chondrocytes or cartilaginous fishes are a small group of mostly marine and predaceous fishes…

Q: Why is Ammocoete Larvae important in the story of evolution? What does its anatomy shed light on?

A: The term "ammocoete" describes a primordial jawless vertebrate larva found submerged in mud and eats…

Q: Hoplophoneus primaevus Skeleton vs Siberian Tiger Skeleton vs Smilodon Necator Skelton Compare and…

A: The three distinct species Hoplophoneus primaevus, Siberian Tiger, and Smilodon Necator come from…

Q: What are various podomeres that make walking legs of the insects? Explain briefly

A: All the insects have their body segmented into the head, thorax and abdomen. The abdomen region…

Q: The human esophagus and trachea share a passage leading from the mouth and nasal passages, which can…

A: Trachea and oesophagus do share a passage asse bleeding from the mouth and nasal passages but where…

Q: How is the internal anatomy of the Perch (bony fish) similar to and different from the shark? How…

A: Climbing perch is a bony fish that lives in fresh water and shark is a cartilaginous fish that lives…

Q: Describe the differences between the two pairs of wings of hexapods (appearance & function).

A: Comparative anatomy is the study of the "similarities and dissimilarities" between various objects.…

Q: What does radial symmetry means? What is the type of symmetry found in chordates? Which are other…

A: The animals are the most abundant living organism that is found in almost every habitat. They have…

Q: 1. Describe your hypotheses that explains how batrachotoxin affects action potential generation

A: Introduction: The action potential is the short series of events in the membrane potential that…

Q: Discuss the adaptations of Labeo?

A: Fishes are gill-bearing aquatic vertebrate animals. The earliest organisms that can be first…

Q: Describe how a snake moves by lateral undulation. Why might this form of locomotion be inefficient…

A: Snakes are the elongated carnivorous reptiles that are ectothermic.  They are the amniote…

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.