1. What is the sex of a pigeon and the crest of a pigeon a product of?

Q: 1. Summarize the events that occur from the fertilization to the development of an embryo. In plants…

A: Note: Please upload 2nd question separately.  Answer: Introduction: Fertilization is mixture of…

Q: 4. Some stages in the development of an individual are listed here. A = differentiation of cells…

A: When sperm fertilizes the ovum, then the formation of a zygote occurs. The zygote undergoes cleavage…

Q: 7. Which of the following best explains the development of twins? a. In the case of both identical…

A: The gestation period varies for twins and a single baby by around 2 weeks. The single baby is…

Q: 8. Knowing that the male bush frogs attract their mates into the bamboo, and bullfrogs attract their…

A: --Bush frog--  also known as Raorchestes chalazodes is a frog species which is found most commonly…

Q: 18) Define Homozygous and Heterozygous. 19) What are genes? 20) Define Dominant and Recessive.

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: 7. What is the essence of the seemingly contradictory views of how an impaired fetus might be dealt…

A: There are many rules and regulations in all countries about the abortion and infanticide.  Abortion…

Q: 1. Write the male and female sex chromosomes. 2. Explain the mechanism of sex determining of birds?…

A: There are four types of chromosomal sex-determination mechanisms like the haploid-diploid, X0, XY,…

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

A: Fertilization, also referred to as syngamy, generative fertilization, and impregnation is the fusing…

Q: 1. What are the phases of group development and give example of each?

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

Q: )Name four (4) structures / tissues that form from each of   the primary germ layers in the gastrula

A: Embryology is the study of development and growth of fertilized eggs(zygote) into mature embryos…

Q: 1) Explain why the intersex condition supports the idea that sex and gender are non-binary and that…

A: Sex and gender were considered same in the past but in today's world various people are identifying…

Q: Internal and external fertilization differ in that species thata. produce an amniotic egg have…

A: The external fertilization process usually takes place in an aquatic environment where the male and…

Q: Explain the significance and describe the features of fertilization and cleavage in early animal…

A: Animal embryonic development is also called as embryogenesis. After the fertilization of the zygote,…

Q: List the stages of embryonic development and what happens at each stage

A: Human fertilization occurs when the haploid sperm cells fertilize the haploid gamete. Embryonic…

Q: 1-Propose continuous growth. an example of an (non-insect) animal with indirect post-embryonic…

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

Q: 5. In the Diagram to the left for each of the abeled ayer. (ectoderm, endoderm or mesoderm) organs…

A: During the process of gastrulation three embryonic layers are formed by which different organs and…

Q: 1. How do breastfeeding and feeds of breasts milk benefit Noah?

A: Breast feeding has several benefits for both mother and baby. Breast milk contains, Proteins…

Q: Compare and contrast animals with external fertilization to those with internal fertilization. What…

A: Fertilization is a phenomenon in which male gamete known as sperm fuses of female gamete that is ova…

Q: 4. a. Briefly explain how the mutation in one gene can trigger a cascade of genetic impacts in the…

A: The structure, morphology and behavior of organisms are dependent upon its genes. These genes are…

Q: 5) The body symmetry that allows for the body to be bisected into equal halves in only one plane is…

A: 5) The body symmetry that allows for the body to be bisected into two equal halves in only one plane…

Q: 5. Describe the difference between how identical twins and fraternal twins (non-identical) produced…

A: Introduction :- The term "twins" refers to two children born from the same pregnancy and delivery.…

Q: which germ layer (tissue) gives rice to our nervous system and outer coverings. a) endotherm b)…

A: The mesoderm, or middle tissue, gives rise to most of the muscle and connective tissues. Finally the…

Q: 6) In the cnidarians, Choanocytes, the cells responsible for filtration, are located in the…

A: The animals of phylum cnideria posses aquatic habitat as they inhabit the water bodies. Like…

Q: 1. Compare and contrast the embryonic development of the starfish and the sea urchin.

A: Embryonic development: all the developmental processes from zygote to tissues and organs.

Q: What are the different mechanisms the egg employed to ensure that only one sperm cell will fertilize…

A: Polyspermy refers to fertilization of an egg cell by numerous sperms. It is avoided during…

Q: Why is it more difficult to determine the sex of a newlyhatched canary than a newborn puppy?

A: A sex-determination mechanism is a physiological system that controls how an organism's sexual…

Q: 3. Which is TRUE about asexual reproduction? A presence of zygote B. does not involve gametes C.…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: phalization. What is its relationship to bilateral symmetry

A: Introduction In biology, symmetry is the ordered repetition of components in an animal or plant. In…

Q: 5. Which of the following determines the sex of the offspring ? 1. The egg 2. Temperature 3. The…

A: Sex of an individual is either male or female. Male has XY genotype and female has XX genotype.

Q: 4. As the embryo develops, what do the amnion and the yolk sac become, respectively? a. A sac that…

A: The amnion is filled with the amniotic fluid due to which the amnion expand and provides protection…

Q: List the stages of development once the egg is fertilized

A: The cycle in which a life form creates from a solitary celled zygote to a multi-cell creature is…

Q: 1. What might be a disadvantage to temperature-dependent sex determination?

A: Note: As Per Guidelines, We Can Answer One Question At A Time. Ask Again To get rest answers.…

Q: 4. Look at the structures that the arrows point to below. What do these structures become once…

A: The structure shown in the above picture is termed as ovules.

Q: 6. Define homologous structures and give example. an

A: Evolution is defined as the process that brings chances within individual over certain period of…

Q: D Which of the structures includes the usual site of fertilization? O A O 3 O 2 O 5

A: Fertilization is a process of fusion of haploid gametes (egg and sperm) to form a diploid zygote.

Q: 2. Name the two ways fertilization can occur. a. Give an example animal that practices each. b.…

A: WHAT IS FERTILIZATION ? Fertilization is a process of combining of male gamete or sperm with female…

Q: Iis the process whereby from each parent fuse to produce a new cell A. Gametogenesis, fertilization…

A: Hi, since there are multiple questions posted, only the first question is answered. Please post…

Q: 1. In Deuterostomes, nutrient molecules (monomers) are taken into the space between the endoderm and…

A: Question -1. In Deuterostomes, nutrient molecules (monomers) are taken into the space between the…

Q: 2.   Describe how the newborn's first breath alters the circulatory pattern.

A: The circulatory system is one of the major systems of the human body. The circulatory system…

Q: What is the primary purpose of the fertilization membrane? a)Provide the growing embryo with food…

A: Sperm and egg (ova) are male and female gametes respectively. Fertilization is key process in sexual…

Q: Why do sea urchins have external fertilization?

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

Q: 2. Complete the Punnett square. Then, answer the questions below. Y. a. Out of four children, how…

A:

Q: 3. Suppost you choose the following F1 worm to transfer: a wild-type hermaphrodite that already…

A: In reproductive biology, a hermaphrodite is an organism that has complete or partial reproductive…

Q: Outline the events of oogenesis. Why is oogenesis a significant process for egg production

A: A small group of cells in the outer region of the cortex are developed into millions of primordial…