Because all eukaryotic cells have mitochondria but not all have chloroplasts, it is thought that the host cell first engulfed the respiration cell. Quite a while later, one of these cells that contained the respiration cell engulfed the photosynthesis cell.
What Is The AVH? Founded in 1995, the Academy of Veterinary Homeopathy is comprised of veterinarians who share the common desire to restore true health to their patients through the use of homeopathic treatment. Members of the Academy are dedicated to understanding and preserving the principles of Classical Homeopathy.
First Degree AV Block. The AV node is a group of specialized conducting cells found in the middle of the heart. The AV node is responsible for transmitting electrical pulses from the top part of the heart to the bottom part of the heart. First-degree AV block refers to a condition where the transmission of impulses through the AV node is slower than expected.