Exam: TOEFL

Definition: A very small unit of weight that is equal to one millionth of a gram.

Example: The doctor prescribed a dosage of five micrograms of the medication.

Definition: A state where the force of gravity is very weak, often experienced in space, making objects feel weightless.

Example: Astronauts conduct experiments in microgravity to study how living organisms behave without the effects of gravity.

Definition: A tiny and specific area where certain plants or animals live, like a patch of grass or a spot between rocks.

Example: The garden has many different microhabitats that support various insects and plants.

Definition: The process of injecting very small amounts of a substance into tiny structures, like individual cells.

Example: Scientists use microinjection to introduce DNA into single cells for research purposes.

Definition: A unit of measurement for volume that is equal to one millionth of a liter.

Example: The scientist measured the liquid in microliters for accuracy.

Definition: A very small piece of dust or rock that comes from space and falls to the Earth or the Moon.

Example: Scientists study micrometeorites to learn more about the early solar system.

Definition: A very small piece of space rock or dust that travels through space.

Example: Scientists study micrometeoroids to understand the composition of our solar system.

Definition: A tool used to measure very small distances or objects, often with a screw mechanism, and can also refer to a unit of length that is one millionth of a meter.

Example: The engineer used a micrometer to measure the thickness of the metal sheet accurately.

Definition: Referring to a concentration that is equal to one millionth of a mole in one liter of solution.

Example: The solution was prepared at a micromolar concentration to ensure accurate results in the experiment.

Definition: A very small unit of measurement used in chemistry, equal to one millionth of a mole.

Example: In the experiment, we measured the concentration in micromoles per liter.