Question

Which scenario would most likely result in the extinction of one or more species?

The water temperature of a pond decreases slightly, and the members of the pond populations adapt to the change.
The conditions are abnormally dry for one season in a desert, resulting in the deaths of a few members of a snake population.
A predatory fish is introduced into a lake, resulting in a dramatic decrease in the populations of smaller fish.
A new plant species begins growing in a forest, resulting in a new food resource for many animal populations.

Answer 1

Answer:

the number 3 or 4

Explanation:

its the most likely tohappen or maybe number 4 those are what i believe would be the correct ones

Answer 2

A predatory fish is introduced into a lake, resulting in a dramatic decrease in the populations of smaller fish.

Explanation:

• Any new species that is introduced in any geographical region are known as alien species. These new species are a threat to other existing species in terms of food, space, & predation for the existing species
• The new/alien/predatory specie can cause disappearance/extinction of native species. Hence, alien/predatory species have had a great impact on the ecosystem & are regarded as the major cause for the extinction of species.
• For example, In the year 1954 Nile Perch which is a predatory fish was introduced in Victoria Lake (South Africa). The lake had a vast collection of diverse species of cichlid fishes till 1954. The Nile Perch spread rapildy and ate away 80 per cent of cichlid fishes leading to the virtual extinction the numerous cichlid fish species