25. All of the following are example of physical environment of an ecosystem EXCEPT; d. plants Air b. water c. sunlight 26. It composed of two or more kinds of tissues that work together and functions as one. Cell d. organisms b. organ c. tissue 27. It is the part of the cell where cellular respiration takes place, a. Mitochondrion d. cell wall b. vacuole C. vesicle 28. Which of the following are found only in animal cell? Cell membrane b. centrioles c. nucleus d. chloroplast 29. Which of the following are found only in plant cell? Centrioles b. nucleus c. cell membrane d. chloroplast 30. There are how many kinds of asexual reproduction? b.3 C. 5 d.6 31. How long will it take for the HEN to develop its egg outside its body? a. O days b. 11 days c. 21 days d. 31 days 32. The process of transferring pollen grains from the anther to the stigma is called a respiration b. hybridization c. fertilization d. pollination 33. Which type of reproduction involves two parents? a. asexual reproduction b. sexual reproduction c.gamete d. ovum 34. Which of the following internal fertilization takes place in animals that lay eggs? a. parity b. ovíparity C. Ovovivíparity d. viviparity 35. How long will it take for the human body to develop its embryo inside the mother's body? 280 days b. 270 days c. 180 days d. 290 days 36. What is the shape of an animal cell? a. square b. triangle c. rectangle d. oval /round 37. Which of the following is in proper order? (smallest -- biggest) a. cell, tissues, organ, organ system c. cell, organ, organ system, tissues b. tissues, cell organ, organ system d. organ system, cell, tissues, organ 38. They belong to organisms of the same kind, a population b. specie c. organism d. community 39. Which of the following is not an example of ecosystem? a. tree b. mountain c. river d. book 40. What do you call to the object being studied under the microscope? a, human body b. mirror c. specimen d. lens a