Topic: Reproduction Aim: Describe the processes of fertilization. Do Now: Take out your Fertilization and Development ISA Work on the Infectious and Non-Infectious Diseases ISA HW: Finish Infectious and Non-Infectious Diseases ISA Castle Learning Skeletal, Muscular and Immune Systems due Tuesday

1. Identify the type of asexual reproduction represented in the diagram. ASEXUAL REPRO 2. Describe the offspring of this process. OFFSPRING GENETICALLY IDENTICAL TO PARENTS 3. Identify organisms that use this process. YEAST, HYDRA

1.Identify the type of asexual reproduction represented in the diagram. 2.Describe the offspring of this process. 3.Identify organisms that use this process. BINARY FISSION OFFSPRING GENETICALLY IDENTICAL TO PARENT PARAMECIA, AMEBA, BACTERIA

1.Identify the type of asexual reproduction represented in the diagram. 2.Describe the offspring of this process. 3.Identify organisms that use this process. REGENERATION OFFSPRING GENETICALLY IDENTICAL TO PARENT STARFISH, LIZARDS, WORMS

1.Identify the type of asexual reproduction represented in the diagram. 2.Describe the offspring of this process. 3.Identify organisms that use this process. sporulation OFFSPRING GENETICALLY IDENTICAL TO PARENT FUNGI

1.Identify the type of asexual reproduction represented in the diagram. 2.Describe the offspring of this process. 3.Identify organisms that use this process. VEGETATIVE PROPAGATION OFFSPRING GENETICALLY IDENTICAL TO PARENT PLANTS

Fertilization

Sperm joins an egg cell.

Fallopian tube (OVIDUCT) Where does fertilization usually occur?

Zygote Fertilized egg Sperm + Egg Zygote

46 # of chromosomes in a human zygote Sperm + Egg Zygote 23 46

Identical Twins

External Fertilization Egg fertilized OUTSIDE female Aquatic organisms (fish)

Large # of eggs and sperm released To increase chance of fertilization

Coral: release egg & sperm at the same time

Internal Fertilization Fertilization INSIDE female Terrestrial (land) organisms

Fewer eggs needed bc well protected

The reproductive strategies of fishes are varied. Sharks reproduce through internal fertilization and many shark species give birth to live young. Sharks that lay eggs produce large, tough shelled egg sacs often referred to as "mermaid's purses." Both sharks that give birth to live young and those that lay eggs produce relatively small numbers of young making it more important to preserve those species that are becoming overfished.

Dolphins use internal fertilization. Dolphin mothers usually go to shallow waters to deliver the calves. Usually a single calf is born, which is nursed for around 18 months with milk from the mother. Calves live close to their mothers for around 6 years.

Let’s summarize… 1.Describe fertilization. When a sperm cell and an egg cell join. 2. Identify the name of a fertilized egg. Zygote 3. How many chromosomes are found in a human zygote? Support your answer. Human zygote contains 46 chromosomes. Each gamete contributes 23 chromosomes.

4. Contrast external and internal fertilization. In regards to: a. Where it occurs External  outside the female Internal  inside the female b. Type of organisms that use it External  aquatic organisms Internal  terrestrial organisms c. # of eggs released External  MANY eggs released Internal  FEWER eggs released

1.Identify the type of cells sperm and egg cells are. GAMETES 2. Identify the type of cell division that is used to produce these cells. MEIOSIS 3. Where are these cells produced? GONADS

1.Identify all labeled structures in the diagram. 2.Identify the structure where the embryo develops. 3.Where can an egg be fertilized? 4.Which structure releases eggs? 5.Identify the hormones structure A secretes.

1.Identify the process represented in the diagram above. Support your answer. 2. If the first cell is made up of 32 chromosomes, how many chromosomes are found in the daughter cells? 3. Identify the types of cells produced by this process. 4. Identify the type of reproduction involved. C B A DE

Locomotion Review 1. Thick, smooth layer of tissue that covers the ends of bones. 2. Thick bands of tissue that attach muscles to bones. 3. Any place where two bones meet. 4. Tough bands of tissue that hold bones together. 5. A tissue that relaxes and contracts. 6. Involuntary muscles in the digestive system. 7. Part of the bone that produces blood cells. 8. Involuntary muscle found only in the heart. 9. Gland that regulates calcium metabolism. CARTILAGE TENDONS JOINTS LIGAMENTS MUSCLE SMOOTH BONE MARROW CARDIAC PARATHYROID

10. Gives the body shape. 11. Bones that protect the spinal cord. 12. Part of the bone that stores fat. 13. Also known as voluntary muscles. 14. The gland that stimulates the elongation of bones. 15. One of the minerals that keep bones strong. 16. Bones that protect the brain. 17. Bones that protect the lungs. 18. One of the strongest bones in the body. Also known as the thigh bone. 19. Bones that make up your fingers and toes. 20. Type of tissue that makes up your bones, muscles, ligaments and tendons. SKELETON VERTEBRAE YELLOW MARROW SKELETAL PITUIARY CALCIUM CRANIUM RIB CAGE FEMUR PHALANGES CONNECTIVE

1. Identify processes A and B. Support your answer. 2. Identify the type of reproduction each process is involved in. 3. Identify the type of cells produced in each process. 4. Identify what occurs to the # of chromosomes in each process. A B

1.Identify processes A and B. Support your answer. A – Meiosis 4 daughter cells B – Mitosis 2 daughter cells 2. Identify the type of reproduction each process is involved in. A – Sexual repro B – Asexual repro A B

3. Identify the type of cells produced in each process. A – Gametes B – Somatic cells 4. Identify what occurs to the # of chromosomes in each process. A – Chromosome # splits in half B – Chromosome # stays the same A B