Examlex
In alternation of generations,two haploid gametes fuse in fertilization to form a ____ zygote.
Urine
A liquid by-product of metabolism in humans and many animals, excreted by the kidneys through the urethra.
Blood
A vital fluid in the body that delivers necessary substances like nutrients and oxygen to the cells and transports metabolic waste products away.
Kidney
An organ in vertebrates that is essential for removing waste products from the blood and regulating blood pressure, electrolyte balance, and red blood cell production.
Acidity
A measure of the concentration of hydrogen ions in a solution, often determining the sourness or sharpness of taste.
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