Give three examples of female sexual selection for ornamentation in males and explain how preference for males with these ornaments increases the reproductive success of the female.

Q: How do female preferences for certain male characteristics evolve in the first place?

A: Sexual preference, the theory in postulating that the evolution in animals of certain conspicuous…

Q: Explain why hermaphroditism is a good solution to enjoy the benefits of sex while also confronting…

A: Hermaphroditism means a condition where organism having both male and female reproductive…

Q: Why does sexual dimorphism have important implications for studying human evolution? Explain why and…

A: Sexual dimorphism is a condition in which the sexes of the same species have distinct morphological…

Q: Why do females usually have the control in selecting mate and explain sexual dimorphism.

A: All living organisms that undergo sexual reproduction(involving two parents) have two sexes which…

Q: 29. Parthenogenesis is the process that eusocial insects commonly use to: a) Create new hives after…

A: Insects are a class of invertebrate animals that are characterized by having three body segments…

Q: Compare and contrast female choice and male choice. Explain why sometimes it is the female and…

A: Female choice  1 father character must enter male offspring (reproductive benefit) 2 phenotype best…

Q: Discuss how and why the queen honey bee aborts the worker bees' sexual maturation.

A: * Basically honey bee Colony have three types of honey bees namely  Queen bee Drones Worker bees…

Q: Relate how toss or flip of a coin and its two possible events to happen every time it goes into the…

A: Sex of the child is determined when the male and female gamete fertilize in the fallopian tube and…

Q: different phases and stages of the estrous cycle

A: The estrous cycle has four stages in particular proestrus, estrus, metestrus and diestrus and goes…

Q: Describe the biological basis for the 1 : 1 ratio of malesand females at conception in mammals.

A: The reproduction mode in the mammals is sexual with fertilization of the male and the female gamete…

Q: To predict: The reproductive success of captive-bred females released in the wild.

A: Our efforts to boost food production rely heavily on biological principles applied to animal…

Q: Explain why steroids are responsible fr the secondary sex characteristics

A: Asked : Reason for steroids are responsible for the secondary sex characteristics

Q: Outline the process of double fertilization, and explain the advantage it confers

A: Flowers are the site of sexual reproduction in flowering plants. Sexual reproduction in flower can…

Q: what is the chromosomal system for determining sex in mammals?

A: Chromosomal determination of sex It is also known as allosomic determination of sex and is based on…

Q: How are bright tail feathers(or loud sounds, or the ability to fight off other suitors) a good…

A: This type of selection is called sexual selection in which males posess colourful and attractive…

Q: How would low levels of testosterone affect the American alligator population?

A: Testosterone is a steroid hormone that stimulates the development of male secondary sexual…

Q: Write a short note on fertilization in Riccia ?

A: These plants are small and thalloid, meaning they lack root, stem, and leaf differentiation. The…

Q: You want to study the biological basis of sex determination. What model will you choose and why?

A: Introduction Sex-determination is a biological system that determines the sex of an offspring based…

Q: Describe the cascade of RNA splicing events initiatedby the Sxl protein that results in female…

A: In drosophila, the pre-mRNA undergoes sex-specific splicing to control sex determination. The…

Q: What is the Effect of Castration on Nervous System of the Mammalian Male

A: Introduction Castration is any surgical, pharmacological, or other procedure that causes an…

Q: What form of amplexus did you see with the Panamanian Golden frogs?

A: Amplexus  Amplexus is a type of mating behaviour in externally fertilizing animals.

Q: how does the  asexually produced individuals move across the landscape?

A: The process by which a new individual is generated from the parents is known as reproduction. Sexual…

Q: Describe how genetic divergence and reproductiveisolation are related to each other.

A: The DNA (deoxyribonucleic acid) is the hereditary unit of an organism. It consists of purines and…

Q: Describe the events that lead to slow and fast blocks to polyspermy and the differences between the…

A: Question - Describe the events that lead to slow and fast blocks to polyspermy and the differences…

Q: Illustrate a model of female reproductive system of frog showing structures and pathways during…

A: Oviposition is a widespread process in vertebrates apart from eutherian mammals, and it refers to…

Q: Identify two organisms that appear similar but have two different mechanisms of sex determination.…

A: Animals with two distinctive sex chromosomes are of heterogametic sex, and they are subsequently…

Q: Does the distribution of Ca²+ in an egg correlate with formation of the fertilization envelope?

A: During fertilization, sperm-induced rise in cytoplasmic Ca2+concentration.

Q: “Breeding like rabbits” is a common expression for having largenumbers of offspring. Rabbits are…

A: The domestic rabbit is raised for meat and fur and is able to reproduce year-round, and the female…

Q: Draw the end results of I, MI, and MII and fertilization showing how an XYY individual could occur.

A: Meiosis is a specialized type of cell division that occurs in sexually reproducing organisms.…

Q: Because the reproductive success of female Hanuman langurs (Semnopithecus entellus) is almost…

A: Introduction : Infanticidal males, In order to increase their chances of having successful…

Q: All physiological mechanisms are directed towards reproductive success in female. Do you agree with…

A: Reproductive success is a process through the genes can be passed over many generations safely. The…

Q: Identify two organisms that appear similar but have two different mechanisms of sex determination.…

A: The sex determination refers to the establishment of maleness and femaleness in an organism at the…

Q: Explain the paradox and adaptive significance of sex. Provide examples and data that support the…

A: The prevalence of sexual reproduction is a paradox. Despite the apparent advantages of asexual…

Q: in sexual selection  I need an explanation of why one sex is more choosy than the other

A: Sexual selection is a process of natural selection where one sex of the species chooses members of…

Q: Describe the two events that are common to all sexually reproducing organisms and how they fit into…

A: Introduction: The union of male and female gametes leads to sexual reproduction. More viable…

Q: explain in simpler words how does mutations in metanephric mesenchyme affect gamete formation

A: One of the two embryonic structures that gives rise to the kidney is the metanephric mesenchyme…

Q: Shown here are graphs that plot the percentage of fertilizedeggs containing males against the…

A: Temperature-dependent sex determination (TSD) is a means of non-genetic sex determination in some of…

Q: What is evidence that menopause is an adaptive cooperative trait? In humans, the presence of…

A: Introduction When you have gone 12 months without a monthly period, menopause has set in. Hot…

Q: In some species, sex is determined by environmental, rather than genetic, factors. This is true of:…

A: The determination of sex in organisms is a crucial aspect of their reproduction, and there are…

Q: Explain how male and female human gametes are very different in terms of the pattern of their…

A: Gamete is a haploid sexual reproductive cell of males and females. Gametes are referred to as a…

Q: Can you think of any unusual situation where you might be able to have a Male Calico cat?…

A: Calico cats are those which have a tricolor.  They have three colors in the body .

Q: Explain the action or effect of moult-inhibiting hormone in insects development (exclusively in…

A: Molt-inhibiting hormone (MIH) is a principal endocrine hormone regulating the growth in crustaceans.

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.