Why would paired external fertilization be preferable to group spawning?

Q: What are the phases of group development and give example of each?

A: Group Development means to form the association of individuals to work as a group and to direct…

Q: Explain the advantages and disadvantages of self fertilization in these flatworms

A: Flatworms are the organisms that belong to the phylum “Platyhelminthes’. These organisms are…

Q: explain Interrupted mating diagramatically

A: Interrupting mating is a technique used in bacterial gene to MAP by determining the sequence in…

Q: Why is long-term parental care not associated with having many offspring during a reproductive…

A: The non-genetic contribution by the parent for making the offspring fit is parental care. It occurs…

Q: What is the adaptive significance of a kinesis? (Pillbug experiment)

A: It is established that organisms have innate behaviors in which they change their movement in…

Q: what might be the disadvantage to temperature-dependet sex determination?

A: Sex determination of an organism is the process by which certain factors like genes, temperature or…

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: External fertilization occurs in which type of environment? a. aquatic b. forested c. savanna d.…

A: “External Fertilization” is a process of reproduction in which the “male gamete” (sperm) and the…

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: Rank the steps from first to last. To rank items as equivalent, overlap them. Reset Help Worms are…

A: There are different methods of reproduction in other organisms. It is studied under the domain of…

Q: Aquatic animals in which fertilisation occurs in water are said to be: (a) viviparous without…

A: Animals show two types of fertilization that includes external fertilization and internal…

Q: Uniquely explain the relationship between primate mating groups and sexual dimorphism in your own…

A: Primates include lemurs, monkeys, and apes. Humans are also included in this order. The primates are…

Q: What determines the sex of the fertilized egg? Please provide examples like research experiments…

A: Fertilization occurs when a sperm cell encounters an egg cell successfully in the fallopian tube.…

Q: Why are sea urchins have external fertilization? What are the adaptive advantages of external…

A: Sea urchins are significant herbivores on coral reefs, & in certain environments they assume a…

Q: Describe internal fertilization process in sea urchin.

A: The process of internal fertilization occurs when a male and female gamete fuse inside the female…

Q: Can you give an example of species in the Philippines that has been documented to perform…

A: A group of organisms which share the genetic heritage and can interbred as a result of which they…

Q: “What is the advantage of internal fertilization over external fertilization and vice versa”?

A: Reproduction is the natural cycle by which new individual creatures – "offspring" – are delivered…

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: How do the two kinds of mammalian reproductive cycles— estrous and menstrual differ?

A: Fertility is more tightly regulated in the female then males. Female placental mammals have one or…

Q: Compare and contrast the mechanisms of egg activation in internal versus external fertilization.

A: Fertilization is part of sexual reproduction, responsible for the fusion of gametes. In case 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: Spare Formation Color Display Involve Sperm and Egg Cell Extend their species Does not involves…

A: A Venn diagram is an illustration that is used to represent all the possible interactions between…

Q: How could changes in the environment affect populations of species with temperature-dependent sex…

A: Sex determination is a biological system that determines the development of sexual characteristics…

Q: In frog neurulation the notochord _______ the formation of the _______ in the ectoderm next to it.…

A: ANSWER) (a) expresses, neural plate

Q: Is the female in this example pregnant? How do you know? Explain how the graph would change if the…

A: Menstrual cycle  Menstrual cycle is a series of natural changes in the hormones level of…

Q: Is the sperm or the egg are responsible for the sex of the cheaks?

A: In birds, the sex determination follows ZZ-ZW mechanism. In this mechanism, male is homogametic (ZZ)…

Q: Which statement below is FALSE regarding the differences between sea urchin and mammals? Select an…

A: Sea urchins belong to the group of Echinodermata. They appear to be globe-shaped, spiked and found…

Q: Describe the reproductive strategies of primate females in your own words.

A: The primate societies are extremely diverse consisting of several sophisticated male and female…

Q: reproductive

A: Turtle- It is an reptile belongs to order Testudines. these are mainly characterized by a shell…

Q: Is Barr's Corpuscle a Reliable Tool for Sex Determination?

A: Canine morphology is used for the determining the sex. However aside from this technique, X and Y…

Q: How many sexual organs do male koalas have?

A: koala is considered a common tree-living herbivorous animal in Australia. It belongs to the class…

Q: Why is mating important in external fertilization of animals? A) It ensures survival of offspring…

A: The sexual reproduction is the process by which male and female gametes becomes united and produce…

Q: What prevents an individual from mating with itself?

A: Mating is the process when hermaphroditic organisms or individuals of two opposite sex pair up for…

Q: Please describe two mistakes from the downloaded diagram on fertilization Oocyte Fertilisation

A: Fertilization is the process of sexual reproduction where two haploid gametes, female egg and male…

Q: What are the relative advantages and disadvantages ofsemelparity and iteroparity? In answering,…

A: Species differ in life-history traits determined by their environment.

Q: Describe external fertilization  process of sea urchin egg with diagram

A: Fertilization in sea urchin occurs solely through the external process in which egg and sperm fuse…

Q: What is one challenge posed by copulation between separate sexes? What are some adaptations that…

A: Grasshoppers :  They belong to animalia kingdom,  the phylum: arthropoda , the class : insecta , the…

Q: True or false male sea urchins release sperm at the optimal concentration for fertilization

A: There are many challenges for sea urchins in order to fertilizer gametes under water. They undergo…

Q: What are the advantages and disadvantages of internal fertilization over external fertilization? How…

A: Internal fertilization - It is the fusion of egg and sperm during sexual reproduction inside the…

Q: Explain the sexual dimotrphism in cockroaches.

A: Cockroaches are the insects that are in close association with the human habitat.

Q: give one species that is classified or exhibit the following: male to male combat show a…

A: Male-male competition occurs when two males of the same species compete for the opportunity to mate…

Q: Roaches Mating American cockroaches engage in courtship rituals before mating. Females begin…

A: American cockroaches have a lifespan of about 1 -  1.5 years .  The process reproduction in…

Q: Why are offspring of oviparous animals at a greater risk as compared to offspring of viviparous…

A: Oviparous animals are those which lay eggs. Viviparous animals are those which give birth to young…

Q: Why does the mode of fertilization correlate with thepresence or absence of male parental care?

A: The reproductive system is a combination of sex organs that functions in a synchronized manner in…

Q: "Skates and chimeras are oviparous, whereas rays and many sharks are viviparous. Being viviparous…

A: The process in which the eggs fuse with the sperm inside the female's body is called internal…

Q: Can you an example of species in the Philippines that has been documented to perform…

A: A group of organisms which share the genetic heritage and can interbred as a result of which they…

Q: Why males, in most of the species, provide no paternal care?

A: Reproduction is the most important life function that is prevalent throughout all organisms. It can…