Which one of these is better adapted to life on land - amphibians or reptiles? 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: Fossil evidence that many saurapod dinosaurs had feathers suggests that ____. flight is an…

A: In the course of evolution Dinosaurs are the important part. So according to the fossils the size of…

Q: Give the literal meaning of the name Gymnophiona. What animals are included in this amphibian order,…

A: Gymnophiona is an order species which comes under class amphibian, which in turn comes under phylum…

Q: Select all the forms of locomotion that are dependent on pectoral fins to generate thrust. |…

A: Need to find which form of locomotion that are dependent on pectoral find to generate thrust.

Q: Why are the lung fish considered to have a common ancestor with amphibians

A: Rhipidistian freshwater fish belonging to the Dipnoi subclass are lungfish. Lungfish are best…

Q: How different are the swimming strategies in osteichthyes and in chondrichthyes? Why do sharks need…

A: The Chondrichthyes include rays, sharks, and skates that have a cartilaginous skeleton with calcium…

Q: How does the foot of a bivalve differ from the foot of a cephalopod, or the foot of a snail? In what…

A: Bivalve Foot - The bivalve foot is one singular mass. It do not have a flat creeping sole but is…

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: How are these animals alike to each other

A: The images of all four animals are koalas(UL), numbat, wombats, and kangaroos(LR).

Q: Describe three innovations that distinguish mammals from cartilaginous fishes (see Fig. 32.2).

A: Mammals and cartilaginous fishes belong to the subphylum vertebrata of phylum chordata.

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: Which feature of ichthyostega would not have improved its ability to move on land? it had an…

A: Vertebrata is a phylum in which the animals have a vertebrae or vertebral column to support the body…

Q: What features of typical amphibians prevent them from living entirely on land?

A: Amphibians are the organisms which are vertebrates as they possess distinct backbone. They live…

Q: Why are horseshoe crabs not crabs (or crustaceans)?

A: Crustaceans are essential for a group, or taxon, classified as arthropods. The fundamental passing…

Q: A rise in atmospheric carbon dioxide increases ocean acidity, making it harder for animals to build…

A: Many marine invertebrates depend on equilibrated chemical conditions and pH levels in the ocean to…

Q: What external anatomical features of amphibians are associated with their dual life on land and in…

A: The word amphibian is a Greek word “amphi” and “bio”. “amphi” means dual or both kinds and “bio,”…

Q: Which animal does not undergo metamorphosis?

A: Metamorphosis is a biological process in which an animal goes through various continuous physical…

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: Why is the occurrence ofeyelids in amphibians incomparison to their absence infishes an adaptation…

A: Amphibians belong to the phylum Chordata. They are vertebrate tetrapods. This group includes frogs,…

Q: How did evolution ever lead ostriches to hide their head in the sand when an enemy approaches?

A: *Before evolution takes place Ostriches doesn't hide their head in the sand and when approached by…

Q: Crustaceans, like annelids, are segmented animals. But crustaceans unlike annelids have tagmata.…

A: Advantage:  The segmentation of annelids is highly adaptive, it allows more efficient movement.…

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: What is the difference between saying that a duck has webbed feet because it needs them to swim and…

A: natural selection -it is the process in which nature selects the one who is able to adapt to the…

Q: crayfish Describe its motion. and snail describe its motion

A: CRay fish is a member of Arthropoda. Snail is a member of the phylum mollusca.

Q: Why are higher forms of animals bilaterally symmetrical? Explain.

A: The animals are the multicellular, eukaryotic organisms in the biological kingdom.

Q: Which of the following is NOT an axial skeleton in the frog? urostyle mandible sternum ribs

A: Introduction:- The axial skeleton is comprised of the 80 bones that make up the body's central core.…

Q: Describe three important differences between the skeletons of the crayfish and the pig.

A: SOME BASIC INFORMATION  SKELETON  It is a structure which is formed by bones  It basically forms the…

Q: Explain the differences in vertebrate appendicular musculature between fishes and tetrapods. How…

A: The evolution of appendicular musculature morphology has been studied, changes in muscular…

Q: How do amphibians undergo metamorphosis

A: Metamorphosis in amphibians is the transformation of the larva to a miniature adult replicate, and…

Q: How are marine reptiles and marine birds similar?

A: Reptiles and birds are known to reside on land, but over time they have developed specific traits…

Q: Compare the swimming movements of eels with those of trout, and explain why the latter are more…

A: Fish are any numerous cold-blooded aquatic vertebrates. It characteristically has gills, fins, and a…

Q: Describe the functions of the parts of a grasshopper and compare the mouthparts to those of the…

A: Grasshopper is an insect belongs to class insecta and phylum arthropod.  It has jointed legs and…

Q: structures in the amphioxus are typically vertebrates

A: Amphioxus is also known as lancelet.  Amphioxi are members of  invertebrate subphylum…

Q: How do Weberian ossicles increase a fish’s sensitivity to sounds?

A: Fishes are defined as the aquatic vertebrates that have gills and appendages in the form of fins.…

Q: What are the general characteristics of reptiles?

A: These were the first class of organisms to adapt to life on land. They are believed to have evolved…

Q: Which skull specimen (Shark, cat, pigeon) has the greatest number of bones (exclude fissures and…

A: The olfactory system refers to the organs in the body that help us smell. The nose and nasal…

Q: There are two types of chordates the invertebrates and the vertebrates. How do invertebrate…

A: The scientific classification of animals begin in the late 18th century. At that time , animals for…

Q: Distinguish the Skelton of reptiles in Chelonia and Squamata.

A: The animal kingdom is divided into several phyla for their diverse properties. Every phylum also…

Q: For each of the five (5) main classes of vertebrates, which part of the brain is the most important.…

A: Introduction: phylum Chordata is divided into three subphyla: Urochordata, Cephalocordata, and…

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: How can invertebrates move without a system to for muscles to pull on?

A: Introduction: Invertebrates: Invertebrates are those which are cold blooded animals lacking bones.…

Q: What other primates have similar intermembral index values as humans and also limb proportions, and…

A: Primates are morphologically characterized into different species based on the relative lengths of…

Q: Which vertebrates have a lateral line system and which do not?

A: The lateral line system is an arrangement of tactile sense organs aligned in an interconnected…

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…

Q: Which would NOT be considered one of Gregory's basic patents of the vertebrate body plan? a. spinal…

A: Animals are divided into several phylums with different features of body organization and also the…

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: TOPIC: Vertebrate zoology How are anatomical structures modified from their original form?

A: The life forms on Earth have evolved since time immemorial under the influence of various natural…

Q: Crustaceans, like annelids, are segmented animals. But crustaceans unlike annelids have tagmata.…

A: Fusion of some segments or metameres leads to the formation of tagmata.Tagmata are present in the…

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.