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Goal 4: Unity and Diversity of Life
Goal 4: Unity and Diversity of Life

... Excretion: How organisms get rid of their waste and balance their fluids. Regulation: How organisms control body processes – i.e. hormones and nervous system Respiration: How organisms exchange gases (O2 and CO2) with the environment ...
Goal 4: Unity and Diversity of Life
Goal 4: Unity and Diversity of Life

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3 limiting factors: Photosynthesis Carbon dioxide + Water à Glucose

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1-3 Studying Life

... b. A multicellular organism may contain trillions of cells. c. A living thing that consists of a single cell is a multicellular organism. d. Organisms are made up of cells. 4. A type of asexual reproduction where a portion of the organism splits off to form a new organism is called _________________ ...
1-3_studying_life
1-3_studying_life

... b. A multicellular organism may contain trillions of cells. c. A living thing that consists of a single cell is a multicellular organism. d. Organisms are made up of cells. 4. A type of asexual reproduction where a portion of the organism splits off to form a new organism is called _________________ ...
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ASK Biology Review

... • Producer/consumer- producers makes food (plant) Consumers eats food (Animal) ex- grass is a producer, cow is a consumer • Predator/prey- predator is one who hunts/eats another organism, prey is the one who gets eaten. Ex- Shark is a predator, seal is the prey • Parasite/host- parasite is one that ...
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... Organisms that reproduce through asexual reproduction tend to grow in number exponentially. However, because they rely on mutation for variations in their DNA, all members of the species have similar vulnerabilities. Organisms that reproduce sexually yield a smaller number of offspring, but the larg ...
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Fertilization and Development Review

... What are the differences between mitosis and meiosis? •Mitosis produces 2 daughter cells while meiosis produces 4 daughter cells. •Mitosis produces daughter cells with the same # of chromosomes as the parent cell while meiosis produces daughter cells with the half the # of chromosomes as the parent ...
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Introduction to Animals Worksheet

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sexual reproduction - Mrs. Maxey`s Science
sexual reproduction - Mrs. Maxey`s Science

... plant group, but in every case, a sperm and an egg join to create a new cell that eventually becomes a plant. It may seem that flowers are just decoration for many plants, but flowers contain structures for reproducing. Male flower parts produce pollen, which contains sperm cells. Female flower part ...
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circulation blood leaf sex cells images

... Male parent provides sperm with either an X or Y chromosome. Female parent provides eggs with an X chromosome. The possible combinations in the offspring are: ...
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Reproduction of Living Organisms

... and female gametes) of a single species combine. Fertilisation must take place in a moist environment. Why? 1. Male and female gametes are very fragile and will die if they dry out. 2. Moisture will keep the egg membrane more soft which will allow the ...
Types of Reproduction PowerPoint
Types of Reproduction PowerPoint

... • To make sure a species can continue. • Reproduction is the process by which an organism produces others of the same kind. ...
Asexual vs. Sexual Reproduction
Asexual vs. Sexual Reproduction

... fertilization, a zygote, the first cell of a new organism, is formed (Figure 1.2). This process combines the genetic material from both parents. The resulting organism will be genetically unique. The zygote will divide by mitosis and grow into the embryo. ...
Asexual vs. Sexual Reproduction
Asexual vs. Sexual Reproduction

... fertilization, a zygote, the first cell of a new organism, is formed (Figure 1.2). This process combines the genetic material from both parents. The resulting organism will be genetically unique. The zygote will divide by mitosis and grow into the embryo. ...
Basics of Biology Chapter 4
Basics of Biology Chapter 4

... is based upon a unifying concept in biologyEvolution by Natural Selection. Natural Selection- individuals with certain traits give them an advantage in a given environment. These individuals will be more successful in reproducing- ‘favorable’ traits are passed on to offspring. Evolution is simply th ...
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Sex



Organisms of many species are specialized into male and female varieties, each known as a sex. Sexual reproduction involves the combining and mixing of genetic traits: specialized cells known as gametes combine to form offspring that inherit traits from each parent. Gametes can be identical in form and function (known as isogamy), but in many cases an asymmetry has evolved such that two sex-specific types of gametes (heterogametes) exist (known as anisogamy). By definition, male gametes are small, motile, and optimized to transport their genetic information over a distance, while female gametes are large, non-motile and contain the nutrients necessary for the early development of the young organism. Among humans and other mammals, males typically carry XY chromosomes, whereas females typically carry XX chromosomes, which are a part of the XY sex-determination system. Other animals have a sex-determination system as well, such as the ZW sex-determination system in birds, and the X0 sex-determination system in insects. The gametes produced by an organism are determined by its sex: males produce male gametes (spermatozoa, or sperm, in animals; pollen in plants) while females produce female gametes (ova, or egg cells); individual organisms which produce both male and female gametes are termed hermaphroditic. Frequently, physical differences are associated with the different sexes of an organism; these sexual dimorphisms can reflect the different reproductive pressures the sexes experience.
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