1. ObjectiveIdentify animals which areeither hatched or born alive.Prepared by:Ma. LIza L. IsraelSRES Central III

2. What animals haveyou seen in yourcommunity? Haveyou seen their young?How do the younganimals look like?Animals have theiryoung ones becausethey can reproduce.Do you jnow how theyreproduce?After reading this page , Pleaseput a check on the box.still do not understand the lessonNow, I understand what the lesson is all about.What I think about the things to do.Easy DifficultFor this lesson I want to study It AloneWith one of my classmateWithin a groupActivity 1: is called Life Cycle thatinvolve identifying the life cycle ofsome animals.Activity 2: is called Fertilizationwhere you will describe howfertilization happens.Activity 3: is called Animals areborn alive/hatched from eggs youwill identify animals how they areborn.Assessment Card: Identify theanimals using the challengeEnrichment Activities: Extend yourlearning by using what you havelearned.sWatch out for the Reference Cardin case you get confused along theway!Student Notes 3. Reproduction is theprocess by whichanimals produceyoung animals of theirown kind. Animalsreproduce in theirown way. Someanimals reproduce bylaying eggs. Someanimals lay eggs inwater and someanimals lay eggs onlandWhat to Do:1. Observe thedifferent lifecyccle ofanimals.2. Compare theinitial stages ofdevelopment ofthe differentanimals.3. Compare theadult stages ofanimals.4. After observingthe life cycle ofanimals,answer thequestions.How similar anddifferent are theinitial stages ofdevelopment ofdifferent animals?All came from E __ SHow similar anddifferent are thefinal stages ofdevelopment ofdifferent animals?A _ _ _ T S havedifferent forms andfeatures 4. The zygote is afertilized egg thateventually developsinto an embryo orbaby organism. ( Justlike balut). If the eggis not fertilized, itspoils.Fertilization is sexualreproduction becauseit involves the unionof female sex cellcalled egg cel and amale sex cell calledsperm cell.Reproduction is theprocess by whichorganism produceyoung ones.embryoLaid as egg or hatchedalive(young organism)What to Do:1. Analyze thedevelopment of thefertilized egg asshown in theillustration.2. Based on youranalysis onfertilization, answerthe questions.1. Which is the male sex cell?S _ _ _ _ cell2. Which is the female sex cell?E _ _ cell3. What is formed when the sex cells unite?Z _ _ _ _ E4. How would you call the kind of reproduction whenthe sex cells are involved?S _ _ _ _ L5. After the egg had been fertilized, what do you call theyoung organism?E M _ _ _ _Egg cell(female sexcell)(male sexcell)(developingegg)(fertilizedegg) 5. Laying eggs in water is one ofthe oldest form of animalreproduction. Fish amphibiansreproduce in water. Female fishmay lay thousands of eggs atone time in the water, then themale fishes releases sperm overthe eggs. The joining of an eggwith a sperm is calledfertilizationWhat to Do:1. Analyze the diagramshowing whichanimals are born aliveand which arehatched from eggs.2. After observing thediagram classify theanimals according tohow they are born.3. After being laid, inferhow a laid eggcontinues to develop4. Answer te questionsthat follows.Hatchedfrom eggsBorn aliveBorn either aliveor hatched fromeggs 1. Which animals lay eggs?___________________________2. Which animals deliver theiryoung live?__________________________3. Which animals deliver theiryoung either live or lay eggs?__________________________ 6. How much did youlearn? (please checkthe box)NothingMore Much,muchmore!A littleStudent NotesWhat you know about this page_____________________________What you learned from this page____________________What you still want to knowabout this page_____________________________Complete the word in each blank1. R _ _ _ _ _ _ _ _ _ _ N is the processby which animals produce younganimals of their own kind.2. Some animals are H _ _ _ _ _ Dfrom eggs and some animalsdevelop inside the body of theparent animals and born _ L _ _ _ E3. A S _ _ _ _ _ _ _ _ _ is the male sexcell.4. An E _ _ C _ _ _ is the female sexcell.5. The F _ _ _ _ _ _ _ _ _ egg developsinto an embryo before it is hatchedor born alive. 7. After Reading thispage(Please encircle onebox)I still do notunderstand the taskNow I understandwhat the task is allaboutWhat I think about thethings to do: (Encircle o ne box)EasyDifficultFor the next task I wentto do it..(check onebox)Alonewith one ofmyclassmates toworkWith in agroupMake sureyou doyour best!I have learned that1. R _ _ _ _ _ _ _ T I O N is the process bywhich animals produce young animals oftheir own.2. F _ _ _ _ _ _ _ _ T I O N is the union ofegg cell and sperm cell3. The period of time the baby animalsspend inside the mother is called G _ _ __ T I O N4. Some animals are H _ _ _ _ E D5. F _ _ H and A _ _ _ _ _ _ A N S reproducein water which are later on fertilized.6. Fertilization in R _ _ _ _ L E S, B _ _ _ Sand M _ _ _ A L S takes place inside theirbodies.7. M _ _ _ A L S give birth to their youngalive and feed them with milk. 8. What to Do:1. Observe thedifferent lifecyccle ofanimals.2. Compare theinitial stages ofdevelopment ofthe differentanimals.3. Compare theadult stages ofanimals.4. After observingthe life cycle ofanimals,answer thequestions.How similar anddifferent are theinitial stages ofdevelopment ofdifferent animals?All came from E GG SHow similar anddifferent are thefinal stages ofdevelopment ofdifferent animals?A D U L T S havedifferent forms andfMeya ctourrreects answers___________________Answer I dont get correctly___________________Answer I still need moreexplanations___________________ 9. embryoLaid as egg or hatchedalive(young organism)What to Do:1. Analyze thedevelopment of thefertilized egg asshown in theillustration.2. Based on youranalysis onfertilization, answerthe questions.1. Which is the male sex cell?S P E R M cell2. Which is the female sex cell?E G G cell3. What is formed when the sex cells unite?Z Y G O T E4. How would you call the kind of reproduction whenthe sex cells are involved?S E X U A L5. After the egg had been fertilized, what do you call theyoung organism?E M B R Y OEgg cell(female sexcell)(male sexcell)(developingegg)(fertilizedegg)My correct answers___________________Answer I dont get correctly___________________Answer I still need moreexplanations___________________ 10. What to Do:1. Analyze the diagramshowing whichanimals are born aliveand which arehatched from eggs.2. After observing thediagram classify theanimals according tohow they are born.3. After being laid, inferhow a laid eggcontinues to develop4. Answer te questionsthat follows.Hatchedfrom eggsCHICKENBUTTERFLYLIZARDEAGLESNAKETURTLEBorn aliveDOLPHINMANHORSECATCOWDOGBorn either aliveor hatched fromeggsSNAKETURTLE1. Which animals lay eggs?CHICKEN, BUTERFLY, LIZARD,BIRD2. Which animals deliver theiryoung live?DOG, CAT, MAN, HORSE3. Which animals deliver theiryoung either live or lay eggs?SNAKE , TURTLEMy correct answers___________________Answer I dont getcorrectly___________________Answer I still need moreexplanations___________________ 11. Student NotesMy correct answers___________________Answer I dont get correctly___________________Answer I still need moreexplanations___________________Complete the word in each blank1. R _ _ _ _ _ _ _ _ _ _ N is the processby which animals produce younganimals of their own kind.2. Some animals are H _ _ _ _ _ Dfrom eggs and some animalsdevelop inside the body of theparent animals and born _ L _ _ _ E3. A S _ _ _ _ _ _ _ _ _ is the male sexcell.4. An E _ _ C _ _ _ is the female sexcell.5. The F _ _ _ _ _ _ _ _ _ egg developsinto an embryo before it is hatchedor born alive. 12. After Reading thispage(Please encircle onebox)I still do notunderstand the taskNow I understandwhat the task is allaboutWhat I think about thethings to do: (Encircle o ne box)EasyDifficultFor the next task I wentto do it..(check onebox)Alonewith one ofmyclassmates toworkWith in agroupI have learned that1. R E P R O D U C T I O N is the processby which animals produce young animalsof their own.2. F E R T I L I Z A T I O N is the union ofegg cell and sperm cell3. The period of time the baby animalsspend inside the mother is called G E S TA T T I O N4. Some animals are H A T C H E D5. F I S H and A M B P H I B I A N Sreproduce in water which are later onfertilized.6. Fertilization in R E P T I L E S, B I R D Sand M A M M A L S takes place insidetheir bodies.7. M A M M A L S give birth to their youngalive and feed them with milk.My correct answers___________________Answer I dont getcorrectly___________________Answer I still need moreexplanations___________________ 13. Fertilization (also known as conception, fecundation and syngamy), is thefusion of gametes to produce a new organism. In animals, the process involvesthe fusion of an ovum with a sperm, which eventually leads to the developmentof an embryo. Depending on the animal species, the process can occur withinthe body of the female in internal fertilisation, or outside in the case of externalfertilisation The entire process of development of new individuals is calledprocreation, the act of species reproduction.Fertilization in reptiles and birds take place inside their bodies. Reptiles lay eggson land. Reptile eggs have tough, leathery covering. Which keeps the eggs fromdying out. Most reptiles do not built nest for their young, instead, they dig a holeand put their eggs into it. Reptiles do not lay as many eggs at one time as fishand amphibians. Birds lay several eggs in a nest at one time. Bird eggs arecovered with a hard shell. Most birds Protect their eggs and take care of theiryoung.An egg is an important stage in the life cycle of animals. Inside an egg is wherethe animal develops. The animal gets food from the egg. This animal is protectedby a special liquid in the egg. After the animal develops, it hatches from the egg.In time, it will grow into an adult.Other animals such as mammals give birth to their young alive. After the spermcell fertilized the egg cell, a new animal forms and grows inside its mother. Dog,bears and lions are mammals. People, cows, bats and whales are mammals,too. Milk and eggs are very nutritious.