animals-rep-ppt-240125054100-b34d52b9.pptx

Earth and Life Science_Animal Reproduction

1. GOOD DAY!

2. OBJECTIVES: 1. Identify the different ways of how representative animals reproduce; 2. Conclude how reproduction provides continuity of species’ existence; 3. Cite ways to take advantages of reproduction as a key to survival of animals. .

3. DAD DECODE, ARRANGE, DESCRIBE The class will be divided into 2. Each group will decode the given numbers to their corresponding letters of the alphabet, then arrange the letters to reveal unifying themes in life. Lastly, one representative of the group will describe the term revealed.

4. L C L E C L L E 25 Y O C O E G E 15 15 E O L C O Y G

5. 14 15 9 20 12 21 15 5 22 18 15 23 20 8 N I T O E U L O V E O L V U I T O N A A P A O T T I N D 16 20 20 15 14 A A P D T T A I O N G W T O R H G O W R T H

6. ORGANISM HUNTING The group will be divided into two and will recall some organisms around in their locality. Within 3 minutes, each group will list down at least 10 organisms that can be found in their place.

7. THINK-PAIR-SHARE Can you describe how these organisms begin? 1. A close-up view of the tiny and active Catanduanes nilesi subspecies of Grey-backed Tailorbird. EGG

8. THINK-PAIR-SHARE Can you describe how these organisms begin? 2.The water buffalo or domestic buffalo is a large bovid originating in the Indian subcontinent, Southeast Asia, and China. Asian water buffalo, Philippines CALVES/ CALF

9. THINK-PAIR-SHARE Can you describe how these organisms begin? 3. The giant Philippine frog, large swamp frog. or Mindanao fanged frog ( Limnonectes magnus ) is a species of frog in the family Dicroglossidae . It is endemic to the Philippines. EGGS

10. THINK-PAIR-SHARE Can you describe how these organisms begin? 4. Leatherbacks have the widest distribution of all sea turtle species. They are found throughout the Pacific, Atlantic, and Indian Oceans EGGS

11. THINK-PAIR-SHARE Can you describe how these organisms begin? 5. Staphylococcus aureus is a Gram-positive, round-shaped bacterium, a member of the Firmicutes . It is a usual member of the body's microbiota, frequently found in the upper respiratory tract and skin. FISSION

12. DIFFERENT WAYS OF HOW REPRESENTATIVE ANIMALS REPRODUCE

13. According to the UN, there are about 360,000 babies born every day in the world. Reproduction is one of the key survivals of a species – it is a way to continue life.

14. REPRODUCTION Means to multiply its kind. It is a biological process by which an organism reproduces an offspring that is biologically similar to the organism.

15. SEXUAL REPRODUCTION a male and female gamete is needed in order to produce an offspring. In most instances, there is a male and female organism to produce the gametes.

16. FERTILIZATION is the fusion of gametes (male-sperm and Female - ovum) Internal fertilization occurs when the fusion of gametes is inside the female body, while an external fertilization is the opposite where fusion of gametes is outside the female body.

17. 3 TYPES OF INTERNAL FERTILIZATION The female has fertilized eggs laid outside its body that are hatched after they have been laig by the parent. Ex. Chickens, Birds 1. OVIPAROUS

18. 3 TYPES OF INTERNAL FERTILIZATION most common in mammals, the offspring develops within the female and is nourished by the mother’s blood in the placenta. Ex. Bears 2. VIVIPAROUS

19. 3 TYPES OF INTERNAL FERTILIZATION animals only lay the eggs when they are ready to hatch. Ex. Great White Sharks 3. OVOVIVIPAROUS

20. Oviparous  = egg-layers. Ovoviviparous  = eggs hatch inside mother. Viviparous  = live birth, nourished directly by mother.

21. HERMAPHRODITES organism has both male and female gametes are present in the same individuals e.g. earthworms, leeches

22. ASEXUAL REPRODUCTION the fusion of the egg cell and sperm cell does not occur; reproduction is mainly through mitosis, which creates a parent clone. This type of reproduction is practiced widely by unicellular organisms.

23. 4 TYPES OF ASEXUAL REPRODUCTION occurs in single celled organisms. It is when a parent cell divides itself into two equal parts and create an offspring. Ex. Bacteria 1. Binary Fission

24. 4 TYPES OF ASEXUAL REPRODUCTION occurs when an organism breaks a part of itself into a fragment, and the fragment develops into a new organism Ex. Starfish & acoel flatworms 2. Fragmentation

25. 4 TYPES OF ASEXUAL REPRODUCTION happens when a parent organism grows a bud attached to its body. Ex. Yeast and Jellyfish 3. Budding

26. 4 TYPES OF ASEXUAL REPRODUCTION occurs when the embryo of an organism can grow and develop without fertilization. Ex. Some species of ants & Honeybees. 4. Parthenogenesis

27. ADVANTAGES AND DISADVANTAGES IN SEXUAL AND ASEXUAL REPRODUCTION TYPES ADVANTAGES DISADVANTAGES SEXUAL REPRODUCTION The population is less likely to catch diseases all at once. Has more chances of survival Has genetic variation. Needs a partner to reproduce. Takes more time to reproduce. ASEXUAL REPRODUCTION Only one parent organism is needed to reproduce. Faster than sexual reproduction. Has less surviving chances due to the lack of genetic variation. Population is more likely to catch diseases at the same time.

28. FACTORS THAT AFFECT REPRODUCTIVE SUCCESS

29. 1. PREDATION The animal kingdom has a food chain, with apex predators at the top and weak, easily hunted animals at the bottom. Apex predators survive by hunting and feeding on other animals, while weaker animals are easily hunted, affecting their offspring's reproductive success. The food chain's connections maintain progeny.

30. 2. ENVIRONMENT The environment of animals is crucial for their health, and rising temperatures are causing dwindling populations and premature death of some species. Warm water conditions, such as in fish, and melting glaciers and ice caps, are also causing malnutrition in polar bears.

31. 3. HUMAN INTERACTION Human activities, including pollution, hunting, and deforestation, have led to species extinction, despite efforts to reverse these effects and save endangered species.

32. DRAW IT UP Pick an animal and draw his ID picture in the box. Fill in the rest of the information by checking the right choice and filling out the blanks! Animal and Species: _____________ ( ) Asexual ( ) Sexual *if your animal is asexual, please specify what type: ______________ ( ) Internal Fertilization ( ) External Fertilization *if you checked internal fertilization, please specify what type: ______________ Place where this animal preferably gives birth:__________________

33. VETERINARY CHECK The group will be divided into 3 and will suggest how the assigned factors can’t be a hindrance in the continuation of reproduction of the animals. Choose 1 animal as an example as each group explains its reproduction. GROUP 1 PREDATION GROUP 2 ENVIRONMENT GROUP 3 HUMAN INTERACTION

34. VETERINARY CHECK SCORE DESCRIPTION 4 Suggested ways are complete and explained excellently in a way that relates to the topic. The conclusions are related. Strong suggestions are made for future purposes. 3 Although a conclusion is drawn, it is not well explained. The conclusions are weakly related to the topic. Suggestions are not feasible or not related. 2 Conclusions are not not related and no suggestions that can be used for future purposes. 1 No conclusion was apparent OR important details were overlooked.