In sea urchin, which step of egg and sperm recognition involves the formation of a fertilization cone?   Sperm binding to the egg's vitelline membrane   Fusion of the sperm and egg membranes   Acrosomal reaction   Chemo-attraction   Sperm binding to the egg's jelly coat

Q: e processes of meiosis and fertilization are essential in human reproduction. Which row in the chart…

A: Meiosis is the process of cell division where cell divides twice to produce the four haploid…

Q: Normally after how many days an ovary release an egg.

A: Every 28 days, an ovary release one mature egg that lives for 12 to 24 hours.

Q: consider a pig that has only fully formed ovary. how would this affect the pig's future…

A: Anything the gilt encounters before its first mating has the potential to influence its reproductive…

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: 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 one key process involved in the development of insects from one instar stage to another

A: Before the insect attains sexual maturity, the insect is referred to as a larva that undergoes…

Q: Which of the following statements about the number of chromosomes in egg cells and zygotes is true?…

A: Egg cells have 23, and zygotes have 46.

Q: Which process occurs between the zygote and the embryo stage

A: Fertilization is the process of fusion of the male gamete and the female gamete, resulting in…

Q: make a concept map, to discuss how reproduction takes place in animals. (Include the modes, sexual…

A: Reproduction is the process through which which offspring are produced from their parents. Each…

Q: The hymenopterans have a method of sex determination called ____, which is a type of meiotic…

A: 1 blank- Arrhenotokous parthenogenesis 2 blank-complementary sex determiner (CSD).

Q: If the egg is fertilized it will develop in the

A: Fertilization is the process of a sperm fusing with an ovum. When the egg moves down the Fallopian…

Q: Illustrate an egg in the morula stage. How does its size compare with that of the fertilizied egg?

A: MORULA STAGE OF EGG- It is an early stage of embryo consisting of 16 cells called blastomeres  which…

Q: Meiosis in animals is responsible for the formation of what type of cells?

A: Mitosis: - Equational division  - 2n => 2n Meiosis: - Reductional division - 2n => n

Q: Draw the amphibian and avian unfertilized eggs. Label membrane coverings and orientation of…

A: Unfertilized eggs are the eggs that have not been fertilized by sperm.

Q: Comparing the nervous system with the endocrine system WHAT DETECTS WHAT IS THE HOW IS THE CHANGE?…

A: Both the nervous system and endocrine system mediate control and coordination.

Q: EVOLUTION CONNECTION Hermaphroditism is often foundin animals that are fixed to a surface. Motile…

A: Hermaphroditism is the condition in which an organism has both the sex gametes produced inside the…

Q: Toxoplasma gondi: Releases oocysts by gametogony in intestinal epithelium of dog. Oocyst is…

A: Toxoplasma gondii is an eukaryotic protozoan and is an obligate intracellular parasite which causes…

Q: Animál Yolk cotent and Cleavage Patterns according to Mitotic spindle distribution Cleavage Furrow…

A:

Q: Which of the following follows fertilization in Xenopus embryos? Calcium waves cause non-yolky…

A: Fertilization in xenopus embryos is  mainly complex multi-step process that completed in 24 hours.…

Q: Describe the process of germ cells migration in mammals.

A: The line of germ is that the sex cells (eggs and sperm) employed by genetic material to transmit…

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: Blastocoel Visible nucleus O Archenteron Blastopore O Fertilization envelope

A: Formation of the fertilization membrane/fertilization envelop  The most important changes that…

Q: In flowchart form, trace the pathway of the frog’s eggs from the ovary to the anus.

A: Frogs belong to the class Amphibia of the phylum Chordata. They have smooth and slippery skin due to…

Q: Give the process of internal fertilization in turtle. Show illustration how the fertilization…

A: Turtles are a type of reptile known as Testudines. They are distinguished by a shell made primarily…

Q: In sea urchin, which step of egg and sperm recognition is mediated by sperm-activating peptides?…

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Q: Which cell contributes the necessary nutrition to the growing zygote? a a polar body b the egg…

A: Introduction: A zygote is a eukaryotic cell created when two gametes fertilise each other. The…

Q: What is the male reproductive system of frog?

A: Sexual dimorphism is present in frog. During the breeding system, both the male and female frogs…

Q: n the ventral surface of the embryo     series of tissue blocks lateral to the neural tube     a…

A: somures eventually differentiate into dermis, skeletal muscle, cartilage, tendons, and vertebrae.

Q: During the creation of eggs, only one egg will be viable, the other 3 eventually break down. What…

A: Oogenesis is divided into three stages, which are the Multiplication phase, growth phase, and…

Q: Which of the following occurs to the blastocoel during Xenopus development?     is replaced by the…

A: Xenopus It refers to the genus of highly aquatic frogs that are mostly found in the regions of…

Q: What kind of cleavage pattern characterizes snail development? Describe its orientation.

A: Snails, earthworms and flatworms are remarkably different animals, but they all exhibit a very…

Q: What is "ecdysis"? O The outermost covering of an ovum that undergoes external fertilization. O A…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: In species with internal fertilization, the eggs often are attached to the outside of the female's…

A: Brood chambers are specialized structures in some species with internal fertilization that provide a…

Q: . How does the fertilization envelope form in sea urchins?What is its function?

A: Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete…

Q: Why is it immoral to culture headless embryos when in fact it can help to help people who need organ…

A: Murder of an individual is considered immoral. On similar terms, an embryo which is cultured to be…

Q: State one way in which Xenopus and chick development are same and one way that they differ? ASAP

A: The process of development of an animal is known as developmental biology. This process may follow…

Q: In Allomyces arbuscula, zoosporangium produce haploid zoospores by meiosis. True False

A: Allomyces arbuscula is a fungi which belongs to class chytridomycetes under subdivision eumycota. It…

Q: A ball of cells that inside is full of cells is called?

A: Answer: The blastula is a hollow sphere of cells, referred to as blastomeres, surrounding an inner…

Q: Which of these is an example of asexual reproduction?     A hermaphrodite mating with another…

A: Reproduction is the biological process of self perpetuation race in which new organisms are produced…

Q: briefly describe one benefit an organism that uses asexual reproduction

A: Introduction  Asexual reproduction is a type of reproduction in which a single parent produces a new…