1. How many parents are involved in sexual reproduction? 2. What are the male and female sex cells called?
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1 Warm up (3 minutes) 1. Pick up a warm up 2. Pick up the student work from the front table 3. Pick up your binder in the filing cabinet 4. Complete the warm up 5. Secure all handouts in your binder 1. How many parents are involved in sexual reproduction? 2. What are the male and female sex cells called?
2 This stopwatch is timing how long it takes you to get ready. It will stop after everyone - has completed a warm up - has their binder in front of them - has today s work - is sitting in their assigned seat - has given 3 seconds of silence. Your class will gain points based on how quickly this happens.
3 Your Future is in Your hands Living Environment: Nature s Sustainable Design FOCUS QUESTION: What are the functions of the male and female reproductive system? Topic Human Reproductive System, p. 12 Today s Plan: 1. Warm Up (3 min) 2. Note Taking 3. Reproductive System Vocabulary Matching 4. Comparing Asexual and Sexual Reproduction 5.Exit Slip (5 min) Today s Objective: Define the functions of the male and female reproductive system and understand the formation of gametes. 2
4 Warm Up Review 1. How many parents are involved in sexual reproduction? 1. What are the male and female sex cells called?
5 1. Note Taking The male and female reproductive system both produce gametes, or sex cells, which contain half the amount of DNA that body cells have.
6 2. Note Taking In the female reproductive system, eggs (ova) are produced in two glands called the ovaries.
7 3. Note Taking In the male reproductive system, sperm are produced in the testes or testicles.
8 4.-7. Haploid Haploid= half the number of chromosomes, amount in sex cells In humans, sperm and eggs have 23 chromosomes
9 4.-7. Diploid Diploid= full number of chromosomes, amount in body cells. In humans, body cells have 46 chromosomes.
10 Male Gamete Female Gamete Fertilized Egg
11 1. If house flies have 8 chromosomes in their gametes, how many chromosomes do body cells have? 2. If lilies have 24 chromosomes in their stem cells, how many chromosomes does pollen have?
12 5. Note Taking By combining genetic material from two different parents, sexual reproduction creates offspring that are genetically diverse.
13 1. If siblings have the same two parents, why aren t they genetically identical?
14 Matching Reproductive System Vocabulary Directions: Match the reproductive system vocabulary words from your Word Bank to the definitions below. Each word is used only once. Use the images of the male and female reproductive system to help you define the words.
15 Matching Reproductive System Vocabulary- Grade your own paper! A. Seminal Vesicles B. Fallopian Tubes C. Uterus D. Egg E. Vagina F. Vas Deferens G. Scrotum H. Ovary I. Penis J. Sexual Reproduction K. Gamete L. Testes M. Sperm N. Fertilization
16 Comparing Sexual and Asexual Reproduction Word Bank 2 parents 1 parent High genetic diversity Mostly unicellular organisms like bacteria, some plants and fungi Mostly multicellular organisms like animals & flowering plants Low genetic diversity Male and female gametes combine Single parent produces genetically identical offspring
17 This stopwatch is timing how long it takes you to get ready. It will stop after everyone - has completed a warm up - has their binder in front of them - has today s work - is sitting in their assigned seat - has given 3 seconds of silence. Your class will gain points based on how quickly this happens.
18 12/15 12/19
19 Living Environment: Nature s Sustainable Design Unit 3.4 Homework is due tomorrow! Last day to hand in Unit 2 Projects and 3.1 Homework! Your Future is in Your hands Announcements 19
20 Exit Slip (5 min) 1. Return to your assigned seat 2. Complete the exit slip 3. Clean up your workstation 4. Secure all handouts in your binder 5. Put your binder away. 1. If a species of plant has 12 chromosomes in its cells, how many chromosomes will its gametes have? 2. Do you think it is better for a species to reproduce sexually or asexually? Explain your answer.
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