How to propagate Christmas cactus?Hello~ You can use the methods of cuttings and grafting, these two methods are more commonly used. Well, you can cut 2-3 nodes of stems and leaves and use them as cuttings. It is also very easy to use cactus as a grafting plant, and it can grow very big and beautiful. How do clams reproduce?Clams are dioecious. During the reproductive season, the sperm discharged by the male enters the gill water tube of the female with the water flow, where it meets the eggs and fertilizes them, and then hatches. There are differences in the future: the marine species hatch as trochophore larvae, which develop into veliger larvae after being released by the female, and finally become juvenile clams; the freshwater species hatch as glochid larvae, which are released by the female and then attach to the gills or fins of fish, temporarily parasitizing, and finally leave the fish body to become juvenile clams. Clam Introduction: Ruditapes philippinarum (Pinyin: huā-gé; scientific name: Ruditapes philippinarum) belongs to the family of Clams, also known as Philippine clam or Philippine clam, commonly known as clam in the south. The shell is oval. The shell is hard and thick, and expanded. The top of the shell is slightly protruding and slightly curved forward. Ruditapes philippinarum is widely distributed in the southern and northern seas of China, South Korea and Japan. It grows rapidly, has a short breeding cycle, is highly adaptable (wide temperature, wide salt, wide distribution), and can survive long out of water. It is an excellent shellfish suitable for artificial high-density breeding and one of the four major breeding shellfish in China. |
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