Amphibia,
Reptilia, Aves, and Mammalia are included in the group Tetrapoda. The
correct answer between all the choices given is the second choice. I am hoping
that this answer has satisfied your query and it will be able to help you in
your endeavor, and if you would like, feel free to ask another question.
HOPE THIS HELPED!!! XD
Answer:
The correct option is A) The introduction of a plant variety that is resistant to insect pests.
Explanation:
In ecological studies, gene flow can be described as the transfer of a genetic variant for of species from one population to another. It is also known as gene migration.
The phenomenon of gene flow allows to increase the genetic diversity of an area by the addition of a variant specie. This variant specie if favoured by natural selection will be able to survive and produces offsprings in the new area.
Answer:
Water, air, and soil are three natural resources that we cannot live without. The Forest Service strives to protect, maintain, and restore these valuable assets now and into the future.
Explanation:
Water is one of the most important natural resources flowing from forests. The Forest Service manages the largest single source of water in U.S., with about one-fifth originating from 193 million acres of land which provides drinking water to 180 million people every day.
Soil provides nutrients, water, oxygen and heat to natural land areas. Understanding the ability and capacity of soil to support an ecosystem plays an important role in land management decisions.
Air is a third critical resource for humans, plants, animals and all other organisms within a natural area. Air must be monitored in order to control and lower pollution levels, control smoke caused by wildland fires, and to monitor air quality. The Forest Service monitors the effects of air pollution that may impair visibility, harm human health, injure trees and other plants, acidify or cause unnatural fertilization of streams and lakes, leach nutrients from soils, and degrade cultural resources, like archeological sites and historical buildings. Forest activities that can affect air quality such as prescribed burning, ski areas, and mining are also monitored to ensure compliance with air regulations for human health and to monitor possible impacts to natural resources.
Answer:
The answer is the 4th one.
Explanation:
Observing the data, we can see a relationship between the amount of light exposure and the amount of bubbles (oxygen) produced in photosynthesis.
As the distance from the light source increases, we see the number of bubbles decrease. We can establish that semi-linear relationship, therefore eliminating option 2.
Option 3 is not directly related to the data in the table, but rather about the inner workings of photosynthesis.
That leaves us with option 1 and option 4. They are both correct, and can be interpreted from the data provided; however, option 1 is vague, and does not use specific data points, only a relationship derived from them.
Therefore, by elimination of options, we can clearly see the correct option is the 4th one.