Which of the following is the latest stage of embryonic development (of this list)? Group of answer choices  a. ) blastula b. ) morula c. ) zygote d. ) 8 cell stage E. ) gastrula

Which two extraembryonic structures form the placenta in humans? a) chorion and amnion b) amnion and yolk sac c) allantois and chorion d) yolk sac and allantois Please I need a quicker response

Which of the following extra-embryonic membranes becomes the embryonic portion of the structure involved in waste and nutrient exchange between the embryo and the mother? Select one: A. Amnion B. York sac  C. Chorion D. Trophoblast

Describe each of the following early embryonic development stages of the human: a. zygote (fertilization) b. cleavage c. morula d. blastula (blastocyst) e. gastrulation (gastrula) f. organogenesis Name the three embryonic layers produced during gastrulation and the adult tissue formed from each. Note whether each of the following get bigger, smaller, or stay the same through cleavage: Mass (size of entire structure) b. size of individual cells c. number of cells a. State what the following structures will form during embryonic development: inner cell mass b. outer cell layer/trophoblast Describe the functions of the placenta during gestation and explain the relationship between fetal and maternal blood. Describe the 3 stages to labor and the effects of oxytocin and prostaglandins during these stages. Detail the effects of prolactin and oxytocin on lactation Animal Behavior Define innate and learned behavior and give an example of each. Discuss the different ways members of a population…

At which stage of embryonic development does the embryo have a blastopore?   Group of answer choices A.Blastula B. Zygote C. Morula D. Gastrula

Which of the following extra-embryonic membranes becomes the embryonic portion of the structure involved in waste and nutrient exchange between the embryo and the mother? Select one: a. Chorion b. Amnion c. Allantois d. Yolk Sac

At which embryonic event would one be able to first distinguish whether an embryo is diploblastic or triploblastic?     A)cleavage B)metamorphosis C)fertilization D)gastrulation E)organogenesis

Which of the following organisms would NOT undergo gastrulation? a. fungi and sponges b. worms and snails c. nematodes d. those with only one opening for food and waste (protostomes)

Which of the following statements is false? a. Cadherins, but not integrins play a role in gastrulation. b. Gastrulation creates the primary germ layers c. Gastrulation requires cells to change their gene expression. d. Body axes are stabilized (made permanent) during gastrulation.

An infant born at term to 27-year-old woman is brought to the neonatology clinic because of urine discharge from the umbilicus that irritates the surrounding skin. Which of the following is the most likely cause of this patient's symptoms? A. Persistent yolk sac B. Persistent allantois remnant C. Omphalocele D. Hypospadia E. Gastroschisis