Coronary heart disease is caused by:

- reduced blood flow to the heart

- reduced oxygen flow to the heart

- reduced nutrient flow to the heart

- reduced electrical flow to the heart

During which stage of mitosis do the sister chromatids get pulled to opposite ends of the cell? Anaphase, Interphase, Metaphase, Telophase

Viruses that infect bacteria are called

Which of the following describes an object with elastic potential energy? A.) an iceberg floating in ocean water that is 35°F B.) a boulder teetering on the edge of a steep cliff C.) a bed spring that is pushed together with a weight D.

How can recycling a nonrenewable resource improve sustainability? A. It reduces consumer demand for the resource. B. It allows the resource to be reused indefinitely. C. It increases efficiency of resource use in manufacturing. D.

Prokaryotes that usually have a cell wall and that usually reproduce by cell division belong to what domain

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