Biology

Science Review of Marine Sanctuaries

Science Review of Marine Sanctuaries 267 189 Deborah

Overview Marine sanctuaries are like national parks, but in the sea or off the coast. These areas protect many species of marine wildlife, and are in many different locations, as…

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Science Review of the Eight Senses

Science Review of the Eight Senses 150 150 Deborah

Overview The five senses of vision, hearing, touch, taste, and smell are familiar.  However, people have three more senses that are critical to everyday life –vestibular, or sense of balance;…

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Science Review of Plant Propagation

Science Review of Plant Propagation 150 150 Deborah

Overview Not all flowering plants reproduce from seeds.  Some plants reproduce by making exact copies of themselves, as plantlets, from stems, or from multiple roots.  Many plants that have desirable…

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Science Review of Plant Adaptation

Science Review of Plant Adaptation 150 150 Deborah

Overview Some types of plants grow successfully in unusual regions, including aquatic plants, salt-tolerant plants, and desert plants.  A few types of plants gather nutrients from trapped insects. Aquatic Plants…

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Science Review of Seeds

Science Review of Seeds 150 150 Deborah

Overview In many types of seeds, the hard casing of the seed is surrounded by flesh called a fruit.  Many fruits are attractive to animals, providing food, so the seeds…

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Biology Review of Combating Global Warming

Biology Review of Combating Global Warming 150 150 Deborah

Overview Global warming refers to the rise in the average temperature of the climate system of the Earth. Some of the energy has resulted in the increase in ocean temperature.…

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Biology Review of the Ozone Hole and Global Warming

Biology Review of the Ozone Hole and Global Warming 150 150 Deborah

Overview Human activity has affected the biosphere on Earth as the population has grown to over 7 billion. Some of the most troubling effects include changes to the ozone layer…

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Biology Review of Cones and Flowers

Biology Review of Cones and Flowers 150 150 Deborah

Overview Plants that reproduce by seed include cone-bearing plants and flowering plants. They can live in many different environments, because seeds store food separately for the plant embryo, to be…

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Biology Review of Biodiversity

Biology Review of Biodiversity 150 150 Deborah

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…

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Biology Review of Populations

Biology Review of Populations 150 150 Deborah

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.…

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