Since 1988, the mission of molecular gastronomy has shifted. Kurti and This originally sought to investigate “kitchen old wives’ tales,” invent new recipes, improve old ones, and make the case to the public that science was a useful part of everyday life. Even if their experiments weren’t intended to be replicated in home kitchens, they were intended to encourage home cooks to experiment. Today, molecular gastronomists seek to explore the social, artistic, and technical aspects of food preparation. Some have argued that this shift in focus, along with the fact that techniques in molecular gastronomy have so far surpassed what any home cook could do, means that molecular gastronomy has lost 1 the ability to impact homemade food.

One of the most influential niche constructors is the earthworm, an organism found almost everywhere on the planet. A scientist only concerned with evolution would predict that, in order to live on land, earthworms would have to significantly change. Earthworms didn’t change their physiology a great amount, however; instead, they changed the soil to make it more like the ocean in order to survive. Land with earthworms is less compacted, is more nutrient rich, and is better mixed than land without them – 1 leading to monumental changes in the ecosystem.

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. As a result, plants have, over time, lost some of these mechanisms – a form of evolution.

Which of the following best supports the point developed in this paragraph?

The pair brought scientific thinking and equipment to the kitchen, challenging perceptions about what belonged in the lab and what 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, 1 they were interesting for scientists.

Which choice most logically completes the sentence?

One of the most influential niche constructors is the earthworm, an organism found almost everywhere on the planet. A scientist only concerned with evolution would predict that, in order to live on land, earthworms would have to significantly change. Earthworms didn’t change their physiology a great amount, however; instead, they changed the soil to make it more like the ocean in order to survive. Land with earthworms is less compacted, is more nutrient rich, and is better mixed than land without them – resulting in a moist environment in which the worms can thrive.

1 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. As result, plants have, over time, lost some of these mechanisms – a form of evolution.

Which of the following provides the most effective transition from the previous paragraph?

The public’s perception of archaeologists has, for years, been colored by depictions of the profession in movie franchises like Indiana Jones, Tomb Raider, and The Mummy. However popular these movies are, they– like movies that depict any other profession – don’t necessarily reflect what archaeologists actually do. While fighting supernatural forces and foiling nefarious plans does make for a better movie, 1 archaeologists are interesting people.