List the modifications that are thought to give some cetaceans the ability to (a) increase their swimming speed, (b) dive to great depths without suffering the bends, and (c) stay submerged for long periods.

Q: What is the evolutionary significance of the fifth gill arch of bony fish no longer supporting a…

A: The vast majority of vertebrates belong to the Osteichthyes superclass of bony fishes. Bony…

Q: 1) What do you notice about the texture of its skin? 2) Why would this be advantageous?

A: The spiny dogfish, spurdog, mud shark or piked dogfish, is a species of the Squalidae family of…

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: What adaptive benefit do the three middle ear bones afford mammals?

A: The three ear ossicles of mammals consists of malleus,incus and stapes which helps in transmission…

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

A:

Q: What feature separates the Chondrichthyans (sharks and rays) from the lobed-finned fishes? O some…

A: The class Chondrichthyes has two subclasses: the subclass Elasmobranchii (sharks, beams, skates, and…

Q: A bird with a brain injury that results in it losing its ability to build a nest likely has an…

A: Introduction Neurology is the study of the nervous system. It is important to know neurology because…

Q: What makes hydra, planaria, salamanders, and fish so much better at regenerating than mammals?

A: Answer- Regeneration is the process by which an organism damaged or missing cells of the organisms…

Q: Which of the following is/are a primitive characteristic associated with members of the phylogenetic…

A: A primate is any member of the biological order Primates, the group that contains all the species…

Q: Explain how each molluscan feature is modified, compared to gastropod and bivalve body plans. 1)…

A: Cephalopods, Gastropods and Bivalvia are all classes of Molluscs. They differ in their habitats. For…

Q: List the criteria used to distinguish: (a) animals from other organisms; (b) vertebrates from…

A: Ans: The criteria used to compare and differentiate different living systems as mentioned in the…

Q: ) What is the most common way for a dead organism to avoid decomposition? (2) Why do researchers…

A: The preservation of ancient species' remnants or traces in the Earth's crust over geological time is…

Q: The absence of muscle tissue in cnidarians primarily reflects...

A: The correct answer is option B: The presence of only two germ layers.

Q: Which of the following is the most distantly related to the others? A) Platyhelminthes (flatworms)…

A: A. Platyhelminthes-1. 20,000 species -most parasitic; only 20 species are free-living. • I…

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: Find the hash mark indicating the origin of jaws. Which group or groups of vertebrates possess jaws?…

A: Vertebrates are the chordates that have a vertebral column.

Q: What anatomical features of the skeletal system and of the musculatory system of vertebrates can be…

A: Introduction Vertebrates include all animal taxa in the Vertebrata subphylum, which includes all…

Q: All Gnathostomes have: I) mineralized teeth II) lung derivatives II) vertebrae O A. I & II B. I &…

A: Gnathostomes belongs to kindom- animalia, phylum- chordata. includes both cartilaginous & bony…

Q: Which of the following is an embryonic tissue found in animals?

A:

Q: Which of the following statements regarding the diversification of animals is supported by the…

A: Biodiversity improves ecosystem productivity by allowing each species, no matter how little, to play…

Q: #11 Match the benefit to the correct chordate adaptation.: Match each number to the letter it…

A: The group of eukaryotic organisms that are heterotrophic and multicellular is called animals. There…

Q: heck all the statements that can be attributed to the blastopore.   A)it becomes the mouth in…

A: The blastopore is a structure that appears in the early embryonic development of animals. It is the…

Q: Which is NOT a common characteristic of mammals? A) have small brains compared to skull size B) have…

A: The question is asking us to identify the statement that is not a common characteristic of mammals.…

Q: Bony Fish (Perch) Explain the functions of the perch such as the external and internal features.…

A: Freshwater, seawater, and brackish (a mix of freshwater and saltwater) habitats are all home to bony…

Q: Why is ventilation important? Compare the morphological traits that enable ventilation in fishes…

A:

Q: Which is NOT true about Hardrocodium?A) lived around 195 million years ago B) had a large brain…

A: The question is asking us to identify the incorrect statement about Hardrocodium, a prehistoric…

Q: How do the presence/loss, form, and function of the radula differ within members of the Classes…

A: Mollusks are a diverse group of animals that have a wide range of uses for humans. Many mollusks,…

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.