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State that phenotypic variation is caused by both genetic and environmental factors. State that discontinuous variation is mostly caused by genes alone, e.g. A, B, AB and O blood groups in humans. Define gene mutation as a change in the base sequence of DNA. Describe the symptoms of sickle-cell anaemia.
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Context clues are words and phrases that surround a word and give clues to its meaning. Point out that two types of context clues are frequently used—definition and restatement. Teaching Context Clues: Use the Lesson Summary to review the steps for using definition and restatement context clues.
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To begin, students read an introduction that explains context clues and their importance. Students then read about five common context clue types and examine example sentences that demonstrate how each clue type works. Finally, students complete an exercise that requires them to infer the meaning of unfamiliar words.
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Key learning points. Some features have discontinuous variation (limited variations falling into particular categories). Some features have continuous variation (can take any value within a range). Examples of features in humans, other animals and plants that show discontinuous and continuous variation. Collecting primary data on examples of ...
Whenever you have a question about science, nature, or even the universe, you can always follow these six steps to find the answer, or at least get one step closer to finding it! Our free printable worksheets discuss the process of the scientific method. Download our worksheets and learn it in seconds.
Directions: Read through each scenario and identify the independent variable, dependent variable, and the control. Beware- not all experiments will have a control! Sara wants to see if a new brand of hair dye lasts longer than the brand she currently uses.
This collection of activity sheets will teach your students how to parse sentences and find corroborating information in order to define unknown words. Project idea: Have your students make up their own adjectives and use them in a sentence, providing enough context for a reader to define the made-up word.
Access thousands of printable worksheets. Ideal for homeschooling and extra practice! Practice with our fun and free number and shapes worksheets to boost your child's learning
