Lactation and fur are synapomorphies that all mammals share. What else can we infer about lactation and fur? The common ancestor of all mammals had lactation and fur Birds also have lactation and fur

Q: How would you determine that the sexual dimorphism in throat patch coloration in male hummingbirds…

A: Sexual dimorphism is known as a condition in which the two sexes that belong to the same species are…

Q: Can Animals  be asymmetrical ?

A: The animal bodies can be categorised based on their plane of symmetry. They can be radial, bilateral…

Q: How might differential expression of and regulation by Hox genes contribute to mosaic evolution in…

A: Genome is the complete set of genetic content present in a cell. A gene is a stretch of nucleotides…

Q: Where, when, and why were wolves domesticated, giving rise to dogs? Explain in detail.

A: The domestic dog's genetic separation from the wolf, domestication, and the appearance of the very…

Q: Explain why tortoiseshell cats are almost always female and why they have a patchy distribution of…

A: Introduction In cats there is XX/XY system of Sex determination in which females have two X…

Q: What is trichomacy in primates and why is this considered a beneficial mutation?

A: INTRODUCTION   Prosimians, monkeys, apes, and humans are all classified as primates, a group of…

Q: Use evolutionary theory to explain the difference in longevity of women in matriarchal and…

A: Evolutionary theories take long term look at the emergence of human species. According to this…

Q: Describe how embryonic development determines certain coat patterns in animals.

A: Embryonic development (or embryogenesis) is the progression of the plant or animal embryo. It begins…

Q: DNA sequences called homeoboxes help homeotic genes in animals direct development. Given that they…

A: Similar sequences don’t ensure complete similarity among the species. It is studied under the domain…

Q: Some uninformed people might argue that studying the development of an obscure little fish like the…

A: Three-spined stickleback fish are found in most coastal and inland waters of 30°N. The average…

Q: There is no phylogenetic evidence for the gradual evolution of eye components. Eyes consist of…

A: Eyes are the photosensory organ that respond to light by forming a vision. It transmits the nerve…

Q: You want to breed turtles and choose to incubate turtle eggs at the highest temperature (36°C) in…

A: Fertilization is the process by which the male and the female gamete fuse together. In most species,…

Q: tail docking involves amputating a portion of the tail an animal for a variety of reasons. why is…

A: Tail docking is often performed in pigs to prevent tail biting. Tail biting is a behavior in which…

Q: Why are humans genetically less variable than penguins?

A: Genetic diversity is the complete number of genetic qualities in the genetic cosmetics of a species,…

Q: What differences do you notice between the male and female forms of extant apes?

A: Extant apes are the apes that are still alive today. There are six extant ape species: gorillas,…

Q: Humans often survive beyond their childbearing years, which is unique among primates. The…

A: Evolutionary genetics is a branch of genetics that studies the role of genetic variation in the…

Q: Identify all species pair(s) who have the most similar DNA sequence and clearly explain why. Would…

A: A phylogenetic tree is a tree-like diagram depicting relationships and relatedness between organisms…

Q: How does the need for dietary vitamin C show that humans are more closely related to other primates…

A: Vitamins are biomolecules that are required by the body for normal functioning and repair of…

Q: ____ genes are regulated by segmentation genes and control the development of specific structures…

A: 1 blank- Gap genes 2 blank- homeodomain

Q: Sea turtles are reptiles. Sea turtles have long flippers (unlike turtles that live in freshwater,…

A: Homologous structures are edifices that are related to related organisms because they were inherited…

Q: previously undiscovered sea creature that appears to represent a new phyla. It happens to have…

A: The mouth develops first, and it goes through several larval stages in which it molts and regrows…

Q: What are the proofs and explanations that Humans are not monkeys in phylogenetic way?

A: There are some proofs and explanations by which we can come to a conclusion that Humans are not…

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

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

Q: Explain how heterochrony could lead to the development of a long neck in giraffes, compared to its…

A: Heterochrony is also known as change in development timing and it is an important mechanism of…

Q: Male parental care occurs in only 7% of fishes and amphibianspecies with internal fertilization but…

A: Introduction  Reproduction is the characteristic of all biological species present on the Earth. All…

Q: describe one way in which limb development in Acanthostega could differ from that in modern…

A: A group of extinct stem-tetrapods called Acanthostega was among the first vertebrates to exhibit…

Q: Define senescence. How would you measure senescence?  compare and contrast the two basic theories on…

A: The process of the growing old. In the  biology, the  senescence is a process by which the  cell…

Q: What factors could be responsible for the size differences among modern vertebrate genomes?

A: The complete set of genetic information in an organism is known as genome. It provides all of the…

Q: At what stages in the development of a human has the evolutionary process introduced genetic…

A: The evolutionary process introduces genetic diversity at several stages during the development of a…

Q: What does your analysis suggest about the role of miRnAdiversity in the evolution of animal…

A: The miRNA refers to the microRNA present in animals, plants, and in a few viruses. It is a…

Q: different sexes can be confirmed by studying living species. How could you look for evidence of…

A: Sexual dimorphism: When we study animals sexual dimorphism helps us to distinguish between the male…

Q: what is exaptation and co-evolution and give appropriate interesting examples (500 words).

A: Evolution is a non ending process. It is responsible for shaping the present day species and would…

Q: What is the one defining characteristic that determines a mammal?

A: A) Well evolved creature, (class Mammalia), any individual from the gathering of vertebrate…

Q: ferent class

A: Introduction  Creatures having a place with class Mammalia are alluded to as warm blooded animals.…

Q: Based on what we know today, what is the best explanation for why the emu, ostrich, and rhea are so…

A: During the early times, Earth was not divided into continents and all the landmass was joined…

Q: heterosis and the trait classification of animals

A: The trait is a remarkable characteristic of quality exhibited by an organism.  Heterosis is the…

Q: Some fish in a murky underground lake have lighter scales than the others. This makes it slightly…

A: The new species of emergence of dark-scaled fish is due to the natural event takes place. It can be…

Q: How are the mammalian Hox genes related to the homeotic genes of Drosophila?  How do the Hox genes…

A: Hox genes are found in bilateral animals including Drosophila and humans. Hox genes are a subset of…

Q: Why does the presence of fur/hair not help us in distinguishing primates from non-primate mammals…

A: A varied group of animals are called primates. They have two types, strepsirrhines and haplorhines.…

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.