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Biology Review of Biodiversity 150 150 Deborah

Biology Review of Biodiversity

Overview Biologists refer to “biodiversity” as the different types of organisms that exist in an ecosystem, species, or variety of genetic information. Many different types of plants, animals, and protists are essential to a healthy environment. Biodiversity is threatened by activities that lead to species endangerment or extinction. Alterations to Habitat If the habitat of…

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English Review: Problems with Pronouns 150 150 Deborah

English Review: Problems with Pronouns

Overview Pronouns often cause trouble, and incorrect pronouns can be caught and corrected when editing an essay. They may be part of a compound subject or object. The pronoun reference may be unclear, or ambiguous. The pronoun used may be singular when the subject is plural, or vice versa. Although pronouns might be difficult, they…

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English Review: Sentence Fragments and Run-Ons 150 150 Deborah

English Review: Sentence Fragments and Run-Ons

Overview Some of the errors to watch for when editing an essay include sentence fragments and run-on sentences. Sentence fragments are phrases that may have subjects but lack verbs. Run-on sentences go on and on and on, and they may need to be separated into two or three separate sentences. Sentence Fragments A sentence fragment…

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Math Review of Inequalities 150 150 Deborah

Math Review of Inequalities

Overview While equations are statements that two quantities are equal, inequalities state that quantities are not equal. One side of the expression might be greater than the other side, or one side of the expression may be less. Correct solutions for variables encompass more than one number. Inequalities Inequalities include symbols such as greater than…

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Math Review of Percents 150 150 Deborah

Math Review of Percents

Overview Percents are special types of ratios that compare the number to 100. Similar to any ratio, a percent can be expressed as a fraction. Since percents compare to 100, they can also be expressed in decimal form. Fractions to Percents Percent or the percent sign (%) means “per 100,” so 5% means the same…

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Math Review of Rates, Ratios, and Proportions 150 150 Deborah

Math Review of Rates, Ratios, and Proportions

Overview A rate compares 2 quantities that have different types of units, such as kilometers per hour or miles per gallon. A ratio compares quantities with the same type of units by dividing the quantity in the numerator by the quantity in the denominator, as in a fraction. A proportion states that 2 ratios are…

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Biology Review of Populations 150 150 Deborah

Biology Review of Populations

Overview Populations of any type of plant or animal gather in a particular habitat. They exist in a particular geographic distribution, have a distinct density, growth rate, and age structure. Populations grow and change by an interplay of elements, such as the amount and number of predators, the availability of food, water, and other conditions…

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Biology Review of Humans in the Biosphere 150 150 Deborah

Biology Review of Humans in the Biosphere

Overview Discussions of different types of ecosystems often include the many species of plants and animals that are native to a particular biome, with one important exception: the human animals who live there. Human activities have changed the biosphere in many ways. Human Activities Some of the types of human activities that have changed the…

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English Review: Editing the Essay 150 150 Deborah

English Review: Editing the Essay

Overview The essay is nearly in its final form. Congratulate yourself, because you’ve done a lot of work since those first few words. Your thesis statement is formalized, and drafts have been rewritten. It’s now time to look at the essay from a different perspective before turning it in to the instructor. Revising or Editing?…

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English Review: Revising the Essay Draft 150 150 Deborah

English Review: Revising the Essay Draft

Overview The essay began with an idea, which expanded into a thesis statement, a draft outline, a draft introduction, and paragraphs on a page. By this time, writers have some idea of where the essay is going, and it’s time to start revising. Where to Start It is possible to read over the draft and…

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