REPRODUCTION IN LIVING THINGS The reproduction is the

LIVING THINGS CAN REPRODUCE SEXUALLY AND ASEXUALLY WAY ASEXUAL REPRODUCTION It’s the creation of

Asexual reproduction occurs in different ways: üBIPARTITION: The cell reaches a certain size and

ü BUDDING: It is forming a small bulge in the cell that then divides

ü REGENERATION: A piece of a living thing is detached. it can grow a

�SPORULATION: The cell is fragmented and each fragment is surrounded by a portion of

SEXUAL REPRODUCTION It’s the creation of a new organism by combining the genetic material

� Cell division is the process by which a cell divides into two or

�In eukaryotes cells are known as mitosis, the cell is capable of dividing again

�Other cell division present only in eukaryotes, is called meiosis, a cell is permanently

In the beginning of plants’ evolution: � One cell MITOSIS. � Two cells MEIOSIS

�The land plants evolved to reproduce by SEEDS. (pine trees) (gymnosperms) �The most advanced

�There are two stages in this process: �POLLINATION. It’s the passage of grains of

�Most insects species typically they have two sexes with males producing spermatozoa and females

Animals typically produce male gametes called sperm, and female gametes called eggs and ova.

�The male gamete is called spermatozoan. It’s motile and usually has a flagellum. �The

All sexually-reproducing species have the basic life cycle, alternating between diploid and haploid forms.

Fallopian tube Ovary Uterus Cervix Urinary bladder Rectum Pubic bone Vagina Urethra Copyright Pearson

Urinary �Male bladder. Reproductive System Vas deferens Pubic bone Seminal vesicle Urethra Rectum Penis

Search about: 1. Asexual Reproduction in Plants 2. Parts of the flower and it

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REPRODUCTION IN LIVING THINGS The reproduction is the ability of living things to give rise to other similar.

LIVING THINGS CAN REPRODUCE SEXUALLY AND ASEXUALLY WAY ASEXUAL REPRODUCTION It’s the creation of a new organism itself by division. There are many living things that reproduce by asexual way. e. g. invertebrates, including sea stars and sea anemones. ASEXUAL REPRODUCTION

Asexual reproduction occurs in different ways: üBIPARTITION: The cell reaches a certain size and then divides into two identical cells e. g. Amoeba and Euglena. ASEXUAL REPRODUCTION

ü BUDDING: It is forming a small bulge in the cell that then divides to form a smaller cell. E. g. Yest, Hidras ü ASEXUAL REPRODUCTION

ü REGENERATION: A piece of a living thing is detached. it can grow a developed in a completed new individual. E. g. Echinoderms ü FRAGMENTATION : In this type of reproduction, the body of the parent breaks into distinct pieces, each of which can produce an offspring ASEXUAL REPRODUCTION

�SPORULATION: The cell is fragmented and each fragment is surrounded by a portion of the cytoplasm. ASEXUAL REPRODUCTION

SEXUAL REPRODUCTION It’s the creation of a new organism by combining the genetic material of two organisms. The two main processes are: meiosis and fertilization SEXUAL REPRODUCTION

� Cell division is the process by which a cell divides into two or more cells. � In prokaryotes cells are known as binary fission. REPRODUCTION IN CELLS

�In eukaryotes cells are known as mitosis, the cell is capable of dividing again having the same number of chromosomes. http: //www. youtube. com/watch? v=w 4 hey-7 -s. Tg REPRODUCTION IN CELLS

�Other cell division present only in eukaryotes, is called meiosis, a cell is permanently transformed into a gamete and cannot divide again until fertilization http: //www. youtube. com/watch? v=D 1_-m. QS_FZ 0&feature=related MITOSIS-MEIOSIS www. pbs. org CELL DIVISION _MEIOSIS

In the beginning of plants’ evolution: � One cell MITOSIS. � Two cells MEIOSIS � Later the plants began to live in land (mosses and Ferns) they developed other way to reproduce (sexual) by SPORES. http: //www. gardenguides. com/video-56680 plants-reproduce. html REPRODUCTION IN PLANTS

�The land plants evolved to reproduce by SEEDS. (pine trees) (gymnosperms) �The most advanced way of reproduction in plants are by FLOWERS and FRUITS. (angyosperms) http: //www. gardenguides. com/vide o-56680 -plants-reproduce. html REPRODUCTION IN PLANTS

�There are two stages in this process: �POLLINATION. It’s the passage of grains of pollen from the stamen to the pistil �FERTILIZATION. It occurs when the pollen grain meets the egg to give rise to the seed and fruit. The pistil begins to swell to form seed REPRODUCTION IN PLANTS

�Most insects species typically they have two sexes with males producing spermatozoa and females ova. http: //www. youtube. com/watch? v=mddyk m. QBCBM&feature=related REPRODUCTION IN INSECTS

Animals typically produce male gametes called sperm, and female gametes called eggs and ova. The fusion of two distinct GAMETES to form a zygote. The gametes are: Haploid (It has one set of chromosomes) while the zygote is Diploid (It has two sets of chromosomes). REPRODUCTION IN ANIMALS

�The male gamete is called spermatozoan. It’s motile and usually has a flagellum. �The male gamete is called ovum. I’s nonmotile and it’s bigger than the male gamete. REPRODUCTION IN ANIMALS

All sexually-reproducing species have the basic life cycle, alternating between diploid and haploid forms. In addition, they will also use mitosis to grow into adult organisms. http: //www. youtube. com/watch? v=t_e. Nmc_g. Hy. E&feature=aut oplay&list=PL 3 EB 6 BB 5 F 6 B 447 F 63&index=10&playnext=1 REPRODUCTION IN ANIMALS

Fallopian tube Ovary Uterus Cervix Urinary bladder Rectum Pubic bone Vagina Urethra Copyright Pearson Prentice Hall FEMALE REPRODUCTIVE SYSTEM

Urinary �Male bladder. Reproductive System Vas deferens Pubic bone Seminal vesicle Urethra Rectum Penis Prostate gland Epididymis Testis Bulbourethral gland Scrotum MALE REPRODUCTIVE SYSTEM Copyright Pearson Prentice Hall

Search about: 1. Asexual Reproduction in Plants 2. Parts of the flower and it functions 3. The seed structure and process in plant development 4. Animal reproduction according to zygote process. 5. Parts of Female reproductive system 6. Parts of a Male reproductive system 7. How does the human fertilization take place? HOMEWORK