Niche constructors are particularly important in colonizing new environments. One of the easiest ways to measure this effect on evolution has been in the effect that the number of earthworms has on soil fertility, a measure of how hospitable an environment is to plant growth. Even the least fertile soil has around 62 worms per square meter, and as the number of worms increases so does soil fertility. As worms move through the different layers of soil, they eat, digest, and excrete massive amounts of organic matter. They leave their excretions behind in the form of nutrient-rich droppings known as casings. As these casings decompose, they release nutrients into the soil. This process not only moves nutrients from one layer of the soil to another but also converts the nutrients to forms that plants can absorb and process more easily. Because it is easier for plants to get the proper nutrients, plants don’t have to invest time and energy into making better root systems to gather nutrients. 1 Therefore, plants have, over time, lost some of these mechanisms – a form of evolution.

Niche constructors are particularly important in colonizing new environments. One of the easiest ways to measure this effect on evolution has been in the effect that the number of earthworms has on soil fertility, a measure of how hospitable an environment is to plant growth. Even the least fertile soil has around 62 worms per square meter, and as the number of worms increases so does soil fertility. As worms move through the different layers of soil, they eat, digest, and excrete massive amounts of organic matter. They leave their excretions behind in the form of nutrient-rich droppings known as casings. As these casings decompose, they release nutrients into the soil. This process not only moves nutrients from one layer of the soil to another but also converts the nutrients to forms that plants can absorb and process more easily. Because it is easier for plants to get the proper nutrients, plants don’t have to invest time and energy into making better root systems to gather nutrients. 1 Therefore, plants have, over time, lost some of these mechanisms – a form of evolution.

The traditional view of archaeologists usually involves a college professor who spends much of his or her time digging and researching in ancient foreign libraries or a museum curator who works every day to preserve the artifacts the museum holds. While this view isn’t completely incorrect, it is incomplete, both in terms of the types of jobs available to archaeologists and in terms of the types of work within those jobs. For example, college professors may spend summers at dig sites, but much of their time is also spent writing grants, teaching students, and writing about their research projects. Additionally, although there are still many people who work in archaeology as professors and museum curators, the demand for these job far outstrips the number of positions available, making the positions 1 a pain to acquire.

Which of the following best fits the tone of the rest of the passage?

The traditional view of archaeologists usually involves a college professor who spends much of his or her time digging and researching in ancient foreign libraries or a museum curator who works every day to preserve the artifacts the museum holds. While this view isn’t completely incorrect, it is incomplete, both in terms of the types of jobs available to archaeologists and in terms of the types of work within those jobs. For example, college professors may spend summers at dig sites, but much of their time is also spent writing grants, teaching students, and writing about their research projects. Additionally, although there are still many people who work in archaeology as professors and museum curators, the demand for these job far outstrips the number of positions available, making the positions 1 a pain to acquire.

Which of the following best fits the tone of the rest of the passage?

The pair brought scientific thinking and equipment to the kitchen, challenging perceptions about what belonged in the lab and 1 whether it belonged in a chef’s kitchen. For example, an early experiment in pie baking involved injecting pies with a syringe full of liquid after baking in order to preserve the crust. Other experiments involved creating meringue (cooked whipped egg whites with sugar) in a vacuum chamber and a “reverse” baked Alaska (ice cream topped with meringue) with the hot merengue on the inside and the ice cream on the outside. Although the experiments themselves might not have been useful to the home cook, they did give insights into the science of cooking that improved recipes and techniques for cooks everywhere.

The pair brought scientific thinking and equipment to the kitchen, challenging perceptions about what belonged in the lab and 1 whether it belonged in a chef’s kitchen. For example, an early experiment in pie baking involved injecting pies with a syringe full of liquid after baking in order to preserve the crust. Other experiments involved creating meringue (cooked whipped egg whites with sugar) in a vacuum chamber and a “reverse” baked Alaska (ice cream topped with meringue) with the hot merengue on the inside and the ice cream on the outside. Although the experiments themselves might not have been useful to the home cook, they did give insights into the science of cooking that improved recipes and techniques for cooks everywhere.

Without earthworms, modern land-based ecosystems would look very different. There is no way to predict the exact changes that would exist without earthworms, but it is easy to recognize earthworms’ 1 impression. As research continues into the effect of earthworms, scientists are confident that it will show an even more complex picture of the earthworm’s contribution to the land-based ecosystem.

Without earthworms, modern land-based ecosystems would look very different. There is no way to predict the exact changes that would exist without earthworms, but it is easy to recognize earthworms’ 1 impression. As research continues into the effect of earthworms, scientists are confident that it will show an even more complex picture of the earthworm’s contribution to the land-based ecosystem.

As the research progresses, they must present their findings in both written and oral reports to stakeholders in the project. Therefore, depending on the site and what they find, CRM archaeologists may also work with architects and planners. This work is to revise building sites to protect sensitive areas. So while everyday archaeologists may not be involved in saving the world from existential threats, they do play an important role in society, helping us preserve and consider the past even as we plan for the future. As cities and communities continue to expand, the work they do will only grow in importance.

As the research progresses, they must present their findings in both written and oral reports to stakeholders in the project. Therefore, depending on the site and what they find, CRM archaeologists may also work with architects and planners. This work is to revise building sites to protect sensitive areas. So while everyday archaeologists may not be involved in saving the world from existential threats, they do play an important role in society, helping us preserve and consider the past even as we plan for the future. As cities and communities continue to expand, the work they do will only grow in importance.