Topic > Essay on Mosquitoes - 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 insect species which are harmful such as termites and parasites which not only kill most cultivated plants but also harm other organisms and spread the virus. infectious disease. Unlike other insect species, mosquitoes are those insects that have unique behaviors in reproducing offspring. Mosquitoes are known as carnivorous, blood-sucking insects that consume the blood of their prey to survive and reproduce. Olena (2013) reported that this insect species existed approximately 46 million years ago with blood-sucking behavior. Mosquitoes are generally harmless to other organisms, but there are some species of mosquitoes that carry certain viruses and transmit debilitating diseases such as malaria and dengue fever that cause fatal lesions in humans (Lehane, 2005). The life cycle of this species only takes about two weeks before transforming into an adult. Similar to some insects such as butterflies, mosquitoes also undergo a complete metamorphosis that has different morphological structures at each stage of the mosquito life cycle (Hoffman & Frodsham, 1993). There are four important stages in the mosquito life cycle: egg laying, larval development, pupae formation, and maturation into adults (refer to Figure 1 in Appendix 1). First, egg laying occurs in the first stage of the life cycle. of mosquito. Eggs are laid by female mosquitoes after they have consumed a sufficient amount of blood from their hosts. This phase occurs thanks to fertilization between the oocyte of the female mosquito and the spermatozoa of the male mosquito (Clement, 1992). So, the eggs that... in the center of the card... come from plants as a source of energy. In addition to this, Clements (1992) also stated that as soon as the breeding process occurs after a few days, female mosquitoes begin to stimulate their receptors on the antennae to detect the body odor and carbon dioxide of the hosts. After mating, the female searches for bloodmeal as she needs extra 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 more (Cadwell, 2011). It takes several days for the female to digest the blood and then the male mosquito inseminates sperm, the male reproductive cell into the female mosquito's reproductive organ to fertilize all the eggs. When this mating behavior occurs, female mosquitoes begin to reproduce new offspring by consuming the hosts' blood, and the mosquito life cycle repeats all over again..