Green lizards were observed in the region in the image. Changes in the geography of the region caused the formation of a stream, which divided the region into two halves. The left half developed a dark green environment, and the right half a comparatively lighter green environment. As a result, two geographically isolated populations, dark and light green lizards inhabited either side of the stream.

The region on the right has more light green lizards as a result of _ . The new species will develop by way of ____ .

1.
A. Natural Seletion
B. Postzygotic isolation
C. Harmful Mutation

2.
A. Sympatric Speciation
B. Allopatric Speciation
C. Convergent Evolution

Question

03-11-2017
Biology

contestada

Green lizards were observed in the region in the image. Changes in the geography of the region caused the formation of a stream, which divided the region into two halves. The left half developed a dark green environment, and the right half a comparatively lighter green environment. As a result, two geographically isolated populations, dark and light green lizards inhabited either side of the stream.

The region on the right has more light green lizards as a result of _ . The new species will develop by way of ____ .

1.
A. Natural Seletion
B. Postzygotic isolation
C. Harmful Mutation

2.
A. Sympatric Speciation
B. Allopatric Speciation
C. Convergent Evolution

Respuesta :

Otras preguntas

Shakespeare often employs a literary technique known as dramatic irony. dramatic irony exists when the reader or viewer knows something that one or more of the

Jess kicks a soccer ball, and it rolls across the ground. The force diagram shows all the forces acting on the ball at the moment Jess kicks it. Which arrow rep

Classifying animals as endangered or threatened: select one:

What is the name of the condition in which tissue from the lining of the uterus grows outside the uterus answers?

Choose the scientific notation that best represents the standard notation given. 0.000000000143 g

Analyze the sentence to determine the main clause and the subordinate clause. Then choose the function of the subordinate clause. It is not right to make a prom

Czechia is a good examples of a select one: a. nation-state. b. multinational state. c. province. d. colony. e. city-state.

For there lay The Combs--the set of combs, side and back, that Della had worshipped long in a Broadway window. Beautiful combs, pure tortoise shell, with jewell

Instructions: Type the correct answer in the box. Round off your answer to the nearest integer. ∠A and ∠C are right angles. m∠p = __ degrees.

Kendra has a painting canvas that is 20 inches wide by 37 inches high. She painted a red rose, which covered 50% of the canvas. What was the area of the canvas

Erudite1 Erudite1 · Answer 1 · 2017-11-03T16:41:19+01:00

The correct options are as follows"
1.B.
Postzygotic isolation is a type of reproductive isolation which keeps species from mating with each other as a result of the differences that developed between them when they are separated by physical boundary. In the question given above, the lizard specie has been separated by the formation of a stream which divide the region into two.
2.B.
Allopatric speciation refers to the mode of speciation that occur when biological population of the same specie become isolated from each other to an extent that it interferes with genetic interchange. It usually occur as a result of change in the environment.

davidsilva2019 davidsilva2019 · Answer 2 · 2017-11-03T16:43:47+01:00

1. Natural selection.
This environmental change, by resulting in two different types of lizards that match the colour of the environment in which they are in, indicates that there was a natural selection, probably from the lizards' predator, that could now see them better if they were in the vegetation not corresponding to their colour leading to the remaining of dark lizards in a dark vegetation, and light lizards in a lighter vegetation.

2. Allopatric speciation
This type of speciation is also known as geographic speciation. It is so because it occurs when populations of the same species are isolated from each other in such a way that there are no genetic interchanges and are pushed to evolve into different species. In this case, the lizards were isolated by the stream that divided the two new areas.