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Cnidarians have specialized stinging cells called cnidocytes
Platycnemididae are a family of damselfly called white-legged damselflies.
Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Avocados are a good source of pantothenic acid, dietary fiber, vitamin K
The nucleus is bounded by a double membrane called the nuclear envelope
A cross section of muscle showing the molecular organization within the muscle fiber. In normal musc