Session 1 Session 1 provides an introduction to statistical investigations. The teacher will need to provide the children with plenty of magazines and newspapers that have some good examples of how data can be presented effectively and also perhaps some examples of poorly displayed data.
Insects can act as mechanical vectors, meaning that the insect can carry an organism but the insect is not essential to the organismâs life cycle, such as when house flies carry organisms on the outside of their bodies that cause diarrhea in people.nsects. Triatomine bugs are the vectors for Chagas disease. An insect that transmits a disease is known as a vector, and the disease is referred to as a vector-borne disease.
They include ovicides and larvicides used against insect eggs and larvae, respectively. Insecticides are used in agriculture, medicine, industry and by consumers. Insecticides are claimed to be a major factor behind the increase in agricultural 20th century's productivity.ome insecticides kill or harm other creatures in addition to those they are intended to kill. For example, birds may be poisoned when they eat food that was recently sprayed with insecticides or when they mistake an insecticide granule on the ground for food and eat it.