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Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..

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Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..

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New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..

Plant meristem
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In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

Direct and indirect physiologic effects of growth hormone
Animal Growth Hormones

Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..

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Protein Variety

The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..