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Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

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The horizontal fraction bar was introduced by the Arabs.

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo
Scent-Tracking Behavior Scent-Tracking Behavior
B. F. Skinner documented how operant conditioning changes behavior. B. F. Skinner documented how operant conditioning changes behavior.
The basal ganglia are clusters of gray matter that control learned movement and are involved with ... The basal ganglia are clusters of gray matter that control learned movement and are involved with ...
Essentials of Organizational Behavior, 13th Edition Essentials of Organizational Behavior, 13th Edition
Mendel’s observations about segregation and independent assortment are explained by the behavior ... Mendel’s observations about segregation and independent assortment are explained by the behavior ...
Video: Diversity of Living Creatures - Charles Darwin & the Beagle's Voyage

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