To determine:
To compare the uterus of an insect with the ovary of flowering of a flowering plant on the basis of similarity and differences as refer to figure 30.7 “The development of a eudicot plant embryo”, in the textbook.
Introduction:
The sexual reproduction in flowering plants is occurring by the meeting and fertilization of male and female gametes. Pollens are male gametes whereas the flower represents the female part of plant that contain carpel and below carpel ovary is present.
In sects sexual reproduction takes place by the fertilization in the uterus of female by the merger of sperm and egg. Egg is produced by the ovary of the female insects and sperm is produced by the sex cell of the male insects.
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Campbell Biology in Focus (2nd Edition)
- Test Your Understanding 13 EVOLUTION LINK Contrast the biological advantages of hermaphroditism that involves cross-fertilization with hermaphroditism that involves self-fertilization.arrow_forwardExplain further each number 1. Compare and contrast the sequence of fertilization events that take place in the sea urchin vs. mammals. 2. How do the sperm and egg recognize each other? What molecules are involved?arrow_forwardVISUAL SKILLS In this diagram, does the sperm cell that fertilizes the egg cell differ geneticallyfrom the egg? Explain.arrow_forward
- MAKE CONNECTIONS Unlike some other types of birthdefects, neural tube defects are largely preventable.Explain (see Figure 41.4).arrow_forward. SCIENTIFIC INQUIRY You discover a new egg-laying wormspecies. You dissect four adults and find both oocytesand sperm in each. Cells outside the gonad contain fivechromosome pairs. Lacking genetic variants, explain howyou would determine whether the worms can self-fertilize.arrow_forwardAsap what evolutionary advantages does the amniotic egg have? explain how each component of the egg plays a role in survival of the embryo.arrow_forward
- MAKE CONNECTIONS Look at Figure 12.7 and imagine the twodaughter cells undergoing another round of mitosis, yielding four cells.Compare the number of chromosomes in each of those four cells, aftermitosis, with the number in each cell in Figure 13.8, after meiosis. Whatis it about the process of meiosis that accounts for this difference, eventhough meiosis also includes two cell divisions?arrow_forwardTest Your Understanding 12 INTERPRET DATA Examine Figure 50-14. Which hormones are present in largest concentration just before ovulation? During which part of the menstrual cycle is the endometrium most prepared to receive an embryo? Which hormones stimulate thickening of the endometrium? Gonadotropic hormones and ovarian hormones regulate the monthly sequence of events that take place within the ovary and uterus. The preovulatory phase begins with menstruation; the postovulatory phase begins after ovulation. Figure 50-14 Endocrine regulation of the menstrual cycle When fertilization does not occur, the menstrual cycle repeats about every 28 days. Note the changes in hormone concentrations that regulate the menstrual cycle. (FSH, follicle-stimulating hormone; LH, luteinizing hormone) PREDICT What happens when a. womans ovaries produce a very low amount of estrogen?arrow_forwardMind map about asexual and sexual reproduction of animalsarrow_forward
- In questions 13 and 14, decide whether each is an example of sexual or asexual reproduction, and state why. 13. A diploid queen honeybee produces haploid eggs by meiosis. Some of these eggs are never fertilized and develop into haploid male honeybees (drones).arrow_forwardQ1. How many stages of cleavage can you identify? Q2. What is the adult fate of notochord?arrow_forwardTest Your Understanding 12 VISUALIZE Label the diagram.arrow_forward
- Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning