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Predict what would happen if Ca2+ was injected into an unfertilized sea urchin egg.
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- What is the function of the hormone erythropoietin? a. stimulates production of red blood cells b. stimulates muscle growth c. causes the fight-or-flight response d. causes testosterone productionThe diagram below represents some structures in the human female reproductive system. Use the diagram to answer the question that appears directly below it.Construct a Table to show the differentiation of the Germ Layers: ( It is a known fact that body parts emanate from one or more of the three germ layers )
- Generate a hypothesis that may explain how contact by a sperm to the outside of the cell membrane of an oocyte causes a wave of Ca2+ release that spreads through the entire egg (as shown in Figure 15.29)Answer in two to three sentences. How can a zygote give rise to cells with different structure and functions despite having the same genetic material?Draw a picture of the cell that would form if the sperm cell fused with the egg cell. what is this cell called
- When a woman breastfeeds, milk letdown can occur in the breast thatis not being suckled. Explain how this response happens.Use the diagram to answer questions 21 and 22.Which term applies to egg development within the female with nourishment derived from a yolk? a. oviparity b. viviparity c. ovoviparity d. ovovoparity
- Which form of reproduction is useful to an animal with little mobility that reproduces sexually? a. fission b. budding c. parthenogenesis d. hermaphroditismName and explain: Name the crustacean and other animals that have moult inhibiting hormone (MIH). Explain the way to collect the hormone.Which form of reproduction can result from damage to the original animal? a. asexual b. fragmentation c. budding d. parthenogenesis