Praxis Math and Science (5008) Practice Exam

Human activity significantly influences plant life, primarily through practices such as agriculture, landscaping, and horticulture, which help cultivate and spread various plant species. Humans have developed methods for growing crops, improving plant genetics, and introducing non-native plants to new regions, all of which enhance the distribution and availability of plant life.

While it is true that some human activities can lead to negative outcomes like habitat destruction or the introduction of invasive species, the overall impact of human cultivation and spreading of plants is a major factor in how plant ecosystems are managed and expanded. This cultivation results in greater diversity in agriculture and can even involve reforestation efforts to restore ecosystems.

The other options do not fully represent the comprehensive impact humans have on plant life. For instance, while human activity can lead to plant extinction, it is not the sole or primary effect; rather, it is one of many outcomes of a broader range of influences. Additionally, asserting that humans do not significantly affect plant life overlooks the substantial impact of human intervention in ecosystems. Lastly, while competition for resources does occur, it is not the primary way that human activity affects plants; instead, collaboration and cultivation often characterize the relationship.