Question

Answer the ones you know please

QUESTION 1 Plant succession is largely controlled by competition among plants for light, and shade tolerance is a key parameter for succession True False QUESTION 2 Habitat fragmentation is a side effect of agriculture True False QUESTION 3 The conservation corridors have a number of advantages except A. Decrease the genetic variation . Increase populations Decrease inbreeding D. Provide alternative refuges from large disturbances QUESTION 4 The push-pull strategies work well for many crops, which of the following strategy is INCORRECT? A Visual distraction is a push strategy B. Non-host volatiles are a push strategy Alarm pheromones is a pull strategy D. Sex pheromones is a pull strategy QUESTION 5 For the successful biological control on prickly pear, which of the following statements is INCORRECT? A. Prickly pear is native to America . Since Prickly peat was introduced to Australia, it spread quickly and occupied > 40K km2 in 60 years. C. The prickly peart was under control by introducing a moth species in 1914 D. After 1940, the prickly peart was completely under control

Answer 1

Ans: 1. True

Ans: 2. Flase

Ans: 3. A. Decrease Genetic Variation.

Ans: 4. Incorrect is"Alarm Pheremones is a pull strategy".