What are two defining characteristics of mammals?

Q: Differntiate and classification of mammals like eutheria,metatheria,prototheria?

A: Mammals are characterized by the presence of mammary glands that function to feed the newborn. These…

Q: Identify the unique features that define the three livinglineages of mammals.

A: Mammals are warm-blooded vertebrate animals. They belong to the phylum Chordata. They are…

Q: Describe the evolution of mammals and the major groups of living mammals.

A: Evolution refers to the alteration of heritable traits of biological populations over time. These…

Q: What are the main orders of placental mammals? What are some representative species and…

A: The orders into that placental mammals are divided are the following: Artiodactyls, mammals with a…

Q: When an organism shifts from a quadriped to a biped, over time what happens to the spine?

A: Quadriped are the animal which have four feet. four-footed, quadrupedal. Biped are the animal who…

Q: What are the main orders of placental mammals? What are some representative species and…

A: Introduction In this question we have to discuss about the main orders of placental mammal.

Q: Why Dogs Vary So Much in Size?

A: The height and size of a species depends upon the gene that organism posses.

Q: What are the three structures shared by every chordate that characterize the group?

A: It is difficult to study all the organisms differently so the organisms are divided into chordates…

Q: How similar are the genomes of humans and chimpanzees? What genetic changes might be responsible for…

A: Homo sapiens and chimpanzees Pan troglodytes shared a common ancestor roughly 5-7 million years ago.…

Q: Define the Chordate characteristics ?

A: The chordates belong to the Chordata phylum of the animal kingdom. The name Chordata comes from…

Q: Which areas of the rat’s body are not covered with hair?

A: Rats belong to the kingdom Animalia, order Rodentia. They are medium-sized rodents of the genus…

Q: How do mammals differ from birds, and what adaptationsdo they share?

A: Birds belong to the class Aves. It has a spindle shaped body with head, neck, trunk and tail. They…

Q: Define the characteristic of a chordate ?

A: Kingdom Animalia contains all animals. It is the largest kingdom of Animalia as compared to other…

Q: What are the three maingroups into which mammalsare divided?

A: Mammals are vertebrate animals that constitute the class Mammalia. They are characterized by the…

Q: Describe the derived features that distinguish primates from other animals

A: Primates:  It is placental mammals. It posses characteristics of mammals, such as constant body…

Q: What are the functions of feathers?

A: For a bird, feathers perform a variety of functions: 1) they provide insulation, most birds' body…

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: Identify several features that define each of the three livinglineages of mammals.

A: Mammals:         Mammals can be categorized into three major groups based on how their babies…

Q: What Are the Key Features of Animals?

A: A multicellular eukaryotic living being which undergoes various biological proceses such as…

Q: How can true seals be differentiated from the eared seals (sea lions and fur seals)?

A: BASIC INFORMATION SEALS  Their scientific name is Pinnipedia. There are around thirty- three species…

Q: What derived characters do sharks and tuna share? Whatfeatures distinguish tuna from sharks?

A: Pieces are true, jawed vertebrates with specific organs for respiration, excretion and blood…

Q: Discuss the traits common to the primates.

A: The group of heterotrophic, eukaryotic organisms with no cell wall are called animals. The animals…

Q: Discuss the characteristics of mammals.

A: Mammals are species included in the animal kingdom. They are present worldwide from ocean, rivers,…

Q: what is a mammal?

A: The term “Mammal” is derived from the Latin term “mamma” which means “breast”. They are a group of…

Q: What are the differences of dogs from other kingdoms?

A: Identification :  Whittaker proposes 5 kingdom classification based upon cell structure,…

Q: In what ways do primate females differ from most other mammals their size?

A: Primates are mammals of the group that which includes the lemurs, lorises, tarsiers, monkeys, apes,…

Q: what is the major difference between turtles and tortoise?

A: The domain Eukarya includes the kingdom Animalia. All animals are classified under the kingdom…

Q: Describe the structure of the pectoral girdle and the stemum of frog?

A: Frogs are the amphibians and can live on both lands and in water.

Q: What are the three suborders of primates?

A: Primates are a group of mammals that includes humans, apes, monkeys, and lemurs. They are…

Q: What are the characterstics of mammals?

A: A chordate is a phylum which contains vertebrates like mammals, birds and some fishes and also…

Q: Is fecundation in mammalsinternal or external?

A: Fecundation, also known as fertilization involves the physical union of the male and female gamete…

Q: What common features do all reptiles share

A:

Q: What is the difference in structure or location of the fangs of a rat-tlesnake, a cobra, and an…

A: The snakes are the legless reptiles that have a carnivorous diet. Most of the species are venomous…

Q: Give differences between shark and frog regarding eye and ear?

A: Sharks are aquatic animals that belong to the cartilaginous category of class Pisces. The frogs are…

Q: Give 8 physiological adaptations of mammals. Pls. specify the name of mammals and its specific…

A: A psychological adaptation is a functional, intellectual, or behavioural feature that helps an…

Q: Define “diphyodont” and “heterodont” and explain why both terms apply to mammalian dentition.

A: The teeth development and their arrangement in the mouth is called dentition. It involves number and…

Q: Draw the structure of chameleon and crocodilus?

A: Class Reptilia includes the creeping- burrowing cold-blooded vertebrates bearing epidermal scales…

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: What are the typicalfeatures of mammals?

A: Vertebrates have spinal cord which remain surrounded by bone or cartilage. Mammals are vertebrate…

Q: Write down the feature of naja and reptiles?

A: Reptiles are a group of cold-blooded animals which have skins covered with small hard plates called…

Q: What is the difference between old world monkey and new world monkeys?

A: The most advanced placental mammals are the primates. Primates are mammals that lead an arboreal…

Q: List the four distinguishing chordate traits.

A: Chordate contains two classes of invertebrates and one class of vertebrate. Invertebrates include…

Q: What are the characteristic features of the chordates?

A: A phylum is a taxonomic classification that comes after domain and kingdom in the classification…

Q: What traits are associated with all primates (including Neanderthals and humans)?

A: The term "primates" includes all those mammals which belong to the order Primates. The organisms…

Q: Describe two mammal order, structures, and behaviors.

A: Mammals  Mammals are the vertebrate animals which have warm blood and hairy body.

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: