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  • Essay / Mosquito Essay - 1238

    Insects are the most abundant species in the world. Some insects are beneficial to other organisms, such as bees, which act as pollinators for plant reproduction, but there are harmful insect species, such as termites and pests, which not only kill most cultivated plants , but also harm other organisms and spread the infectious disease. Unlike other insect species, mosquitoes are one of the insects that have unique behaviors to reproduce. Mosquitoes are known as blood-sucking carnivorous insects from which they consume the blood of their prey to survive and reproduce. Olena (2013) reported that this insect species existed around 46 million years ago and had blood-sucking behavior. Mosquitoes are generally harmless to other organisms, but some mosquito species carry certain viruses and transmit debilitating diseases such as malaria and dengue fever that are fatal to humans (Lehane, 2005). The life cycle of this species only requires about two weeks before becoming an adult. Similar to some insects such as butterflies, mosquitoes also undergo complete metamorphosis that exhibit different morphological structures at each stage of their life cycle (Hoffman & Frodsham, 1993). There are four important stages in the mosquito life cycle: egg laying, larval development, pupa formation and maturation into adults (see Figure 1 in Appendix 1). First, egg laying occurs during the first stage of the life cycle. mosquito. Eggs are laid by female mosquitoes after consuming a sufficient amount of blood from their hosts. This step is due to fertilization between the oocyte of the female mosquito and the sperm of the male mosquito (Clement, 1992). Then, eggs which...... middle of paper ...... come from plants as energy sources. Apart from this, Clements (1992) also stated that as the breeding process occurs after a few days, female mosquitoes start to stimulate their receptors on the antennae to detect body odor and carbon dioxide. of carbon from the hosts. After mating, the female searches for a blood meal because she needs additional protein to develop her eggs (Renchie & Johnsen, 2007). Most females die before receiving their second blood meal, but some may feed two or three times as many (Cadwell, 2011). It takes several days for the female to digest the blood, then the male mosquito inserts the sperm and male reproductive cells into the female mosquito's reproductive organ to fertilize all the eggs. As this mating behavior occurs, female mosquitoes begin to breed new offspring by consuming the blood of the hosts and the mosquito life cycle repeats again..