Examlex
______________ principle explains why objects float or sink in a fluid.
Reproductive Cells
Cells that are involved in sexual reproduction, including sperm and egg cells, carrying genetic information to offspring.
Human Immunodeficiency Virus
A virus that attacks the immune system and can lead to acquired immunodeficiency syndrome (AIDS), a condition in which progressive failure of the immune system allows life-threatening opportunistic infections and cancers to thrive.
Malignant Tumours
Cancerous growths that have the ability to invade nearby tissues and spread to other parts of the body.
Blood
A vital liquid in humans and animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away.
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