Awestern flower thrips
scientists at swansea university have done research into pest control using bacteria which
naturally live only in the thrips. the bacteria affect a gene which controls eating in the thrips. the
thrips stops feeding and dies. the bacteria pass naturally between the thrips.
(a)
use the information above to suggest one advantage to the farmer of using this new
method of pest control over the use of chemical pesticides.
113
(b)
apart from the use of pesticides state one other method farmers use to increase crop
yields
[1]

This is due ! matching pairs of chromosomes from parents are called a. homologous chromosomes b. heterozygous chromosomes c. herterogenes d. homologous bands

The diagram below represents a marine food web and a process that can harm the human population. each circle represents an organism and the smaller dots inside them represent a toxic substance. what is being represented and how does it harm the population? the diagram represents biological half-life, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents biomagnification, in which toxins build up in organisms higher up on the food chain, and this can negatively impact humans who consume the organisms and the toxic substance. the diagram represents the process by which different organisms prey upon each other; this can impact the human population by reducing the number of organisms that do not contain the toxin. the diagram represents the way that toxins are metabolized by living organisms, with those at greater trophic levels able to metabolize more efficiently than those at lower levels. this means that those at higher tropic levels are safer for humans to consume compared to the organisms at lower trophic levels.

What is the identity of the planets?