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Praxis Biology & General Science: Animal Reproduction and Development Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Mosquitoes fly towards higher concentrations of carbon dioxide. This is an example of:

Question 2 2. What do the trophoblasts do after the blastocyst attaches to the uterine wall

Question 3 3. What is the function of the acrosome?

Question 4 4. Which part of the mammalian blastocyst will eventually become the embryo itself and its surrounding membranes?

Question 5 5. Which embryonic stage consists of a solid, compact mass of sixteen or more cells?

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Question 6 6. Which of the following is crucial for proper development of a baby's lungs?

Question 7 7. The structure within the ovary in which a primary oocyte grows and develops is called the _____.

Question 8 8. The Graylag Goose, once it spots an egg outside of the nest, will use its beak to move the egg back into the nest. The goose continues to move its head to return the egg to the nest until it sees the egg back where it belongs. Which of the following terms best explains this behavior?

Question 9 9. Which of the following is an important function of the zona pellucida?

Question 10 10. The following image shows a diagram of spermatogenesis, the process by which male gametes, known as sperm, are created. How is this process different from oogenesis?

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Question 11 11. Which of the following contains mostly maternal cells?

Question 12 12. A farmer has a field near a busy highway. When he gets new horses, they are visibly frightened every time that a car speeds by. However, the horses that have been in the field for a while have no reaction to the cars speeding by. This can be explained by:

Question 13 13. Which of the following describes a zygote?

Question 14 14. Generally, you eat lunch at noon. Now, every day around noon, you become hungry. Regardless of what you eat before this point in time, as soon as you see that it is noon, you immediately feel that it is time for lunch. This behavior is best known as:

Question 15 15. Mary is pregnant and is telling you about how she is worried that her baby is floating around in her uterus with nothing holding him in place. Which of the following would be most helpful to tell Mary about in order to ease her worries?

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Question 16 16. Forty sperm are made by the end of spermatogenesis. How many spermatogonium entered meiosis?

Question 17 17. Which of the following best describes what is responsible for the sleep/wake cycle in humans?

Question 18 18. Which extraembryonic membrane is used by mammals to form part of the placenta?

Question 19 19. Birds immediately recognize the first moving thing during a critical period in their development and then follow this object. This is best known as:

Question 20 20. Which of the following best describes what can be found in chorionic villi?

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Question 21 21. Which of the following is true about biological development?

Question 22 22. Which of the following statements is true about the intervillous space?

Question 23 23. The heart, blood vessels, blood cells, skeleton, kidney, spleen, and muscles are all tissues or organs that arise from what primary germ layer?

Question 24 24. Which of the following is NOT a factor that makes studying human development difficult?

Question 25 25. After gastrulation has occurred, the inner layer of cells is called what?

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Question 26 26. Which extraembryonic membrane has a well-developed vascular structure that contributes to the vascular system of the developing mammalian embryo?

Question 27 27. A family lives near a very loud train but doesn't seem to notice when it roars by their house. However, whenever people come to visit, they are startled by the sound of the train going by the house. This is an example of:

Question 28 28. What are the three basic components of a functional mature sperm cell?

Question 29 29. Which of the following is NOT a true statement about the placenta?

Question 30 30. When and how does the blastocyst use proteases?

Praxis Biology & General Science: Animal Reproduction and Development Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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