What is lactase used for?

A. It is used to make sugar-free milk.

B. It hydrolyses lactose to glucose and fructose.

C. It improves the digestion of milk by some people.

D. It decreases the acidity of the milk.

Which definition best describes a control in an experiment? Select one: It is a part of your experiment that changes. It is a statement that sums up your results for your experiment. It is a part of your experiment that doesn't change.

How many people are predicted to live on Earth in 2050

The total number of atoms of each element is not changed during a chemical reaction.

Does the success of a prey population depend on its predators? Explain.

What would have to be done to plant oil to transform it to a trans fat?

Which is not part of the circulatory system A. heart B. air passageway C. blood D. blood vessels

Briefly explain the four steps of respiration (of the human body).

Researchers are studying the way plants move in response to stimuli. Which scenario could be used to test phototropism? A) Two sets of plants could be placed in a dark room and the growth monitored.

Parkinson's disease and Huntington's disease are both extrapyramidal motor disorders. Describe what we know about each disorder (i. e., symptoms, causes, treatment). Explain how they are similar and how they are different.

Which of the following does eccentricity describe