Electromagnets are the result of

A. two positively charged ends. B. an electrical charge. C. generators. D. the Earth's magnetic poles.

Scientists believe the Earth's core is around 6,000 degrees Celsius. Where does this heat come from? increased gravity the Earth's formation meteoroid impacts radioactive elements

If you eat bacon and fried eggs for breakfast the largest component of energy would come from the

What advantage is there in having the special sensory organs confined to the head region?

Which of the following is the best definition of a scientific theory? A. a broad, well-supported explanation of related observations or events B. a description of a natural phenomenon that is always observed to occur under specific conditions C.

What is the role of the uterus in the development of the fetus and the placenta

Gregory Mendel's work was in the area of ... ? A) DNA B) RNA C) Inheritance D) Reproduction

Use Models Use a separate piece of paper draw a Punnett square to represent the cross of two pea plants, each heterozygous for tallness (Tt). Use the Punnett square to identify the probability of an offspring that is short.

What factor most influences the power pf a stream to erode and transport material?

Match each step of the scientific method with its description

Several instances of irregular digestion are listed in the table below. Condition Description Symptoms Heartburn Inability of the muscles at the end of the esophagus to close Burning sensation in throat Peptic ulcers An open wound in the lining of