Answer:
The silkworm litter is used for bio-gas production and used as a fuel for cooking in the rural area. Thus sericulture not only provides silk for fashionable clothings, it also provides several very useful bye products to the human society.
Freshwater means low salt content. The zones namely Standing which is compose of ponds and lakes and has littoral zone which algae,floating aquatic plants and clams can be found. Next is limnetic zone and has plankton. Next is Flowing includes streams and rivers and in there resides catfish and carp. For sea water it has Marine which has aphotic zone where anemones,arrow worm and angler fish resides.Another, coastal zone compose of coral reefs and mangrove and lastly the intertidal zone with small critters.
Step 1: Imbibition water fills the seed.
Step 2: The water activates enzymes that begin the plant's growth.
Step 3: The seed grows a root to access water underground.
Step 4: The seed grows shoots that grow towards the sun.
Step 5: The shoots grow leaves and begin photmorphogenesis.
Capillaries are the end structures in the artery system that bring oxygenated blood from your lungs to the rest of your body.
