Question
Question: In order to produce silk more cheaply, gypsy moths were brought to the United States about 150 years...
In order to produce silk more cheaply, gypsy moths were brought to the United States about 150 years ago. The accidental release of gypsy moth caterpillars in Massachusetts leads to the infestation of local woodlands. Finally, their descendants spread across most of the country.
The factor that does not contribute to the success of gypsy moth in their new environment is
A.Gypsy moths have no indigenous predators
B.Gypsy moths evolved over time to be successful in their new environment
C.Gypsy moths found an ample supply of food in native deciduous forests.
D.Trees have no natural defense against gypsy moths
E.Gypsy moths out completed native species which could not coevolve with them.
Solution
Hint:- Alongside different species, the Gypsy Moth was brought into the United States during the nineteenth century with the purpose of finding a type of silk creating moth that could be hybridized to contend well with the Silkworm Moth, yet not be dependent upon the numerous ailments that the Silkworm Moth endured in societies.
Complete Answer:- This examination was led by Leopold Trouvelot, a beginner lepidopterist from Medford, Massachusetts, who at one time had more than 1,000,000 hatchlings in development behind his home.
In 1868 or 1869, a few people of grown-up Gypsy Moths got away from his home, with ten years slipping by before the local trees were gravely defoliated by coming about populaces of the moth.
From that start, Gypsy Moths have gotten one of the most significant timberland bugs in the United States, defoliating a great many sections of land in the northeastern U.S.
The Gypsy Moth has unique techniques for dispersal.
The youthful hatchlings have hairs with little air pockets that make lightness, permitting them to travel huge spans when the breeze is solid.
They have been found as high as 2,000 feet noticeable all around, and are known to travel five miles every day by this technique. Grown-up females normally pupate and store egg masses on engine vehicles, particularly trucks and recreational vehicles that are left close or under trees.
The correct answer is " option-A"
Note:- Females lay eggs on the trunks of trees, each egg mass including a few hundred eggs. Vagabond Moths overwinter in the egg stage and incubate in April or May.
The youthful caterpillars are dark and furry, later getting mottled dim with tufts of bristle-like hairs and blue and red spots on the back. There is one age for each year. Vagabond Moths have an inclination for oaks, yet they will assault the foliage of most trees and bushes. Grown-ups contrast in appearance, guys being earthy colored with a fine, more obscure earthy colored example on the wings.