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single-celled floating algae, which provide food for marine animals, such as fish and whales.
the fluid that circulates through the lymphatic system. It is similar to blood plasma in...
dietary supplements of live bacteria that are good for human health.
nutrients are obtained by digesting organic compounds that have to be acquired and ingested by...
the tube that carries urine from the nephrons to the ureter via the renal pelvis.
wild animals from tropical forests that are captured or killed for food or traditional medicine...