Name the membrane valves that open and close

In general less energy is needed to produce a product from recycled material than from new material. This is one reason why we should recycle. Another reason to recycle is because?

Barry was on an antibiotic, but after he took all of it, he had a rash and the doctor prescribed him an antihistamine. Which most likely describes what happened to Barry? He had a viral infection, but then developed an allergy to the antibiotic.

Why are muscles always associated with some type of skeleton? A. The skeleton transmits the force generated by the muscles. B. The skeleton is always necessary to support the body against gravity. C.

Does the bowing ball have more potential energy or kenetic energy as it's half way through its fall? Why?

Which action is a physical change in digestion? producing enzymes for nutrient absorption absorbing nutrients from food mashing food with teeth salivating to break food into carbohydrates

What are giant, multinucleated cells that remove and recycle bone matrix called?

A garden is an example of a

During what geological period do the angiosperms become more common

Many questions about ethical concerns and issues of personal morality cannot be answered by science. True False

This nutrient is needed for proper growth and development and functions to repair and replace body cells.