Comparison Explain the comparison between the reproductive systems of the pig and frog. How does copulation differ between the two taxa? How does embryo formation compare, as it relates to the internal organs of the mother?

Q: What causes sexual dimorphism? Give some examples of sexually dimorphic species, and why you think…

A: Sexual dimorphism :- Sexual dimorphism is the systematic difference in size of the sexes found in…

Q: In seahorses, males incubate and care for offspring. Thus, the males are more likely to be tied up…

A: Sexual behavior refers to the actions, activities, and interactions related to the expression of…

Q: When the fitness increment of increased male function results in a small cost in fitness of female…

A: Hermaphrodites are organisms that possess both female and male sex organs and can produce male…

Q: A terrestrial animal species is discovered with the following larval characteristics: exoskeleton,…

A: The phylum is the division of Kindom in the process of classification of organisms in which the…

Q: How might secondary sex characteristics in males differ from those infemales in a species in which…

A: Sexual dimorphism is the difference in the morphological characteristics of males and females. The…

Q: Is viviparity a synapomorphy of the mammals? Explain.

A: Synapomorphy is a characteristic that is present in the Ancestors and which is also shared by its…

Q: Would you expect more or less similarity between embryos from distantly related species? Explain and…

A: In evolution, embryology is one type of study which deals with embryos. An embryo is an unborn (or…

Q: Compare and contrast the reproductive strategies (for both fertilization and development) of fish,…

A: A process known as fertilization begins sexual reproduction when a sperm and an egg are combined.…

Q: Why might a “monogamous” bird seek extra-pair copulations?

A: Monogamy is the behavioral habit in which an animal has only one mate at a time. It can be observed…

Q: Describe the feeding biology of centipedes, spiders, mites and beetles. Compare and contrast these…

A: We know that centipedes, spiders, mites, and beetles belong to the phylum Arthropoda and which is…

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: With your knowledge of sexual selection theory, can you formulate a hypothesis that explains why…

A: Courtship refers to the display of special behavioural patterns by the males and females to attract…

Q: Explain how heterochrony may have been involved in the evolution of 1) pteropod gastropods, 2) the…

A: Heterchrony is the term used to describe a change in the rate or timing of development in comparison…

Q: Explain the evolutionary advantage of the amniotic egg

A: Amnion is a membrane which enclose the embryo after it's formed.Embryo is the initial stage of…

Q: Individuals of some species of bony fishes change sex, some to maintain more males than females,…

A: Sex change in bony fishes, also known as sequential hermaphroditism, is a unique biological…

Q: Which type of cleavage leads to the development of a bird?

A: Cleavage refers to repeated cell division in the fertilized egg. Cleavage leads to the formation of…

Q: In a study in which men and women were asked to sit at a computer and navigate through a virtual…

A: Gender differences in spatial learning have been thought to occur worldwide among mammals, but their…

Q: Are the following primates (same species) exhibiting sexual dimorphism? Explain your reasoning:

A: The characteristics of the organisms are the basis of their classification system. It also gives an…

Q: In penguins, both parents offer care for their young. Which of the following is UNLIKELY an…

A: In polygynous mating, males typically exhibit traits or behaviors that help them gain access to and…

Q: 0.3

A: SR = 0.3   Non-SR = 0.7   The probability that a female will mate with non-SR if she mates once:…

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: Sexual reproduction creates diversity in a species. List TWO ways in which diversity is introduced…

A: Sexual reproduction involves the formation and fusion of gametes.

Q: Why are there sexual conflicts of interest among primates between the sexes?  Detail the "anisogamy…

A: When males and females pursue reproductive strategies that are incompatible with one another,…

Q: Female Pacific walruses migrate north each summer and return south to mate with the males before the…

A: Hi! As you have posted multiple questions and have not mentioned which are to be answered, we are…

Q: Give two ways nature uses to hide differences between X- and Y-sperm in mammals?

A: Most cells of the mammals contain both an X and a Y chromosome, but in the process of…

Animal Behavior

Animal behavior can be defined as all the things that animals do. In response to a stimulus, an animal performs a certain fixed action pattern, or FAP, of behavior. This response occurs to make the animal more adaptable to change. So, behavior is generally a stimulus-oriented response. A behavior is an expression of the capabilities of the nervous system. A stimulus is determined by the environment, while the nervous system determines a response.