PPT-Process of Fertilization

Salma Zamora Formation of Sperm Age These changes occur in boys between the ages of 12 and 16 with a wide variation Some boys may start even later or earlier Puberty It hits guys around 12 years old but Puberty is a process that goes on for several years its different to all. Reproductive Technologies. In vitro fertilization. In vitro fertilization (IVF) is an assisted reproduction technology used when natural fertilization methods are unsuccessful.. IVF is a scientific process where a female egg is fertilized my a male sperm externally in a glass dish.. . Fertilization . – Union of 2 parent cells.. Sperm and egg cells called . gametes. .. Product of egg . +. sperm = fertilized egg = . zygote. .. . Embryo. = early stages of an organism’s development; from first cell division to end of 8. Gametogenesis . Long prophase in oogenesis. NON dis junction. Abnormal gametes. Abnormal Oocytes. Abnormal Sperms. Spermatogenesis. Aspermia. Oligospermia. Azoospermia. Contraception. Contraceptive pills. Asexual Reproduction. Asexual reproduction. is reproduction in which a single parent has offspring that are genetically identical to the parent.. Examples of asexual reproduction. : binary fission, budding, fragmentation, regeneration, spore formation, vegetative reproduction and parthenogenesis. LIFE HISTORY PATTERNS:. is a genetically inherited . pattern of . resource . allocation (= investment). . to . that optimizes the passing of genes to the next generation. Different investment. patterns. Type Influences C . Allocation and N Acquisition in Moist Tundra in Response . to N Fertilization, P Fertilization, . and . Warming. Erik . Hobbie. 1. , Laura Gough. 2. , Sarah Hobbie. 3. , Gaius Shaver. Interior 2012 Fertilization Meeting. February 8. th. , 2012. Prince George, BC. Paul Rehsler, RPF. Resource Practices Branch. Requirement to report. Policy driven requirement, as per the . RESULTS Information Submission Specifications for Government Funded Silviculture Activities (RISS-. The reason that two sperm cells travel down the angiosperm pollen tube is that . they both stimulate growth of the pollen tube.. one fertilizes the egg, and the other combines . with the two polar nuclei.. PUBERTY, DRAWING Puberty. Illustration of the changes observable at puberty in both boys and girls (genitals, weight and height, secondary sex characteristics and other characteristics . developped. specifically due to the secretion of testosterone in boys and estrogen in girls.. (Historical viewpoints). Wak. . Wak. tree. Homunculus . (. latin. : little man). Gametes . – meet the parents . . 2. 0. oocyte . (. oo. = egg . cyt. = cell). sperm. Conception . – beginning of a journey. internal fertilization allows animals to reproduce sexually.. internal fertilization requires much less expenditure of resources.. internal fertilization produces more offspring, ensuring rapid population growth.. I. Reproduction With Cones and Flowers. A. Alternation of Generations. - All plants have a life cycle in which a diploid sporophyte generation alternates with a haploid gametophyte generation.. Haploid. Mostly Aquatic. Two pairs of antennae, mandibles, pair of appendages on each segment of their body.. Mollusca. Gastropods - Snails (Single Shell). Bivalves - Clams (2 Shells). Cephalopods - Squid and Octopus (Internal Shell). Fertasa. Soil . Fertility & Plan Nutrition Symposium,. 23 . August 2017,. CSIR. , Pretoria. Gerhardus P. Nortjé. Abstract. Much research in . macadamia, . but not so much on fertilization and . nutrient.