Answer:
He proposed that natural selection is the primary mechanism of evolution.
Explanation:
Lets look at this question like this:
If you have a white deer in a green forest, the wolves who prey on deer would automatically go for that white deer. The white deer is easier to locate rather one who would blend in their environment. (A brown deer) With the theory of natural selection, the survival of the fittest would make it in their environment. Passing their genetics to their offsprings.
Primary consumers obtain nitrogen directly from eating plants.
D) All of the above
Explanation:
Genetic engineering "allow scientists to create their own mutations in the organisms" by "manipulating the genetic code in attempt to improve a species" which is virtually the same as"altering genetic material".
<u>Answer</u>: d. All of the above are true.
If an organism lives currently in a specific environment, it does not mean that it cannot spread further on due to changes. A good example are invasive species that under human influence have spread in many areas of the globe where they have had a negative impact on native ecosystems.
Our planet is a complex system with many interconnected parts. Thus, what happens in one region can affect many other regions as both air and water move globally. The same is true for locally released carbon dioxide that will result in a local increase in air temperature. However, this can change the global air currents or itself can move and accumulate in other regions.