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Fertility

Solubility rules

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Solubility Rules 1. All common salts of the Group 1 elements and ammonium ion are soluble. 2. All common acetates and nitrates are soluble. 3. All binary compounds of Group 17 elements (other than F) with metals are soluble except those of silver, mercury(I), and lead. 4. All sulfates are soluble except those of barium, strontium, lead, calcium, silver and mercury(I). 5. Except for those in Rule 1, carbonates, oxides, sulfides, and phosphates are insoluble. 6. Oxides and peroxides are always written in molecular form. 7. Gases are always written in molecular form. 8. The only strong bases are the hydroxides of Group I & II metals except beryllium. 9. The only strong binary acids are those of chlorine, bromine, and iodine.

AP Bio_genetic_variation

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Genetic variation produced in sexual life cycles contributes to evolution * Mutations (changes in an organism?s DNA) are the original source of genetic diversity * Mutations create different versions of genes called alleles * Reshuffling of alleles during sexual reproduction produces genetic variation Origins of Genetic Variation Among Offspring * The behavior of chromosomes during meiosis and fertilization is responsible for most of the variation that arises in each generation * Three mechanisms contribute to genetic variation: ? Independent assortment of chromosomes ? Crossing over ? Random fertilization Independent Assortment of Chromosomes * Homologous pairs of chromosomes orient randomly at metaphase I of meiosis

AP Bio_Cell division

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Meiosis and Sexual Life Cycles Variations on a Theme * Offspring resemble their parents more than they do unrelated individuals * Heredity is the transmission of traits from one generation to the next * Variation is demonstrated by the differences in appearance that offspring show from parents and siblings * Genetics is the scientific study of heredity and variation Concept 13.1: Offspring acquire genes from parents by inheriting chromosomes * In a literal sense, children do not inherit particular physical traits from their parents * It is genes that are actually inherited Inheritance of Genes * Genes are the units of heredity and are made up of segments of DNA * Genes are passed to the next generation via reproductive cells called gametes (sperm and eggs)

Reproduction in Human

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P P T 2 REPRODUCTION IN HUMANS OBJECTIVE ? Describe the process of sexual reproduction ? Site of fertilization ? Role of cell division ? Significance of implantation and gestation 1 ?Ovulation 2 ? Fertilization 3 ? Implantation 1. OVULATION(DAY 0) ? Ovulation releases an egg, which enters the fallopian tube. ? Usually occurs on the 14th day from the beginning of menstruation. ? One egg is released every month by one of the ovaries. 2. FERTILIZATION ? Fertilisation occurs. A sperm enters the egg and the nuclei of the egg and the sperm fuses, forming a zygote. ? About 100 million sperms are released into the vagina. ? Only one sperm will fertilize the egg. ? Upon fertilization, the membrane of the egg

AP Human Geo Ch 2 vocab

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Vocabulary Agricultural Density - The ratio of the number of farmers to the total amount of land suitable for agriculture. Agricultural Revolution - The time when human beings first domesticated plants and animals and no longer relied entirely on hunting and gathering. Arithmetic Density - The total number of people divided by the total land area. Census - A complete enumeration of a population. Crude Birth Rate (CBR) - The total number of live births in a year for every 1,000 people alive in the society. Crude Death Rate (CDR) - The total number of deaths in a year for every 1,000 people alive in a society.

AP Human geoCh 2 Vocab

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Vocabulary Agricultural Density - The ratio of the number of farmers to the total amount of land suitable for agriculture. Agricultural Revolution - The time when human beings first domesticated plants and animals and no longer relied entirely on hunting and gathering. Arithmetic Density - The total number of people divided by the total land area. Census - A complete enumeration of a population. Crude Birth Rate (CBR) - The total number of live births in a year for every 1,000 people alive in the society. Crude Death Rate (CDR) - The total number of deaths in a year for every 1,000 people alive in a society.

Myers 8th Edition Psychology - Motivation and Work Notes

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Ch 12: Motivation and Work Basic Vocab Motivation- a need or desire that energizes and directs behavior Instinct- complex behavior that is rigidly patterned throughout a species and is unlearned Drive-Reduction Theory- the idea that a physiological need creates an aroused tension state (a drive) that motivates an organism to satisfy the need Homeostasis- 1. tendency to maintain a balanced or constant internal state 2. regulation of any aspect of body chemistry around a particular level Incentives- a positive or negative environmental stimulus that motivates behavior. Maslow?s Hierarchy of Needs: Self-actualization needs = Need to live up one?s fullest and unique potential

Bio 220 Principles of Physiology and Development

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Bio 220 Notes Prokaryotes: 3.2 billion years ago Cell wall = peptidoglycans gram neg - lipopolysaccharides secreted outside of cell wall No internal compartments Unicellular and small (1-5 um) Most have single chromosome Transcription and translation occurs in the same location Eukaryotes: 2.1 billion years ago compartmentalization = organelles you can be more efficient with reaction vessels (concentrate functions) You can get by with fewer enzymes if you concentrate them into organelle, its cheaper Endosymbiants Mitochondria divide at their own rate, replicate independently of cell they live in Has its own DNA, circular First endosymbiants Cell size varies greatly RBC are the smallest and neurons are the largest/longest Plasma Membrane

Chapter 4 The Developing Person

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In-Class notes ?13: Chapter 4 ? The Developing Person Three major issues: Prenatal Development and the Newborn prenatal development: zygote, embryo, fetus, teratogens ? Fetal Alcohol Syndrome The Competent Newborn ? rooting reflex, others: -Close-up: how do we know? habituation, novel stimulus Infancy and Childhood Physical development ? brain: neurons, maturation, infant memory (?infantile amnesia?) / retention? -motor development: sequence, but individual differences in timing Cognitive Development ? PIAGET; schemas, assimilation, accommodation, stages and terms (figure 4.1) -sensorimotor: object permanence; stranger anxiety -preoperational ? egocentrism, language, fantasy, expanding theory of mind -- versus autism:

Bob the Builder

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Canales, Owen, and Reyes 1 Jeffrey Canales, Meghan Owen, and Johnny Reyes Mrs. Fuller B4 English I 2 May 2012 Death of Innocents Everyday innocent, unborn babies are killed all around the world. It?s wrong and unfair for the unborn babies, they should have rights too. Abortion and fetal rights is an issue in our society because it?s killing innocent life and regulations should be done to resolve this problem.

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