Which of the following is a metal?

A.

calcium (Ca)

B.

iron (Fe)

C.

sodium (Na)

D.

all of these

What makes up the protein component of a nucleosome core?

The water reclamation process is used to remove solids and impurities, but does not return water to a potable state. 1. True 2. False

Computer programs can be classified into two broad categories. what are those categories?

It has often been said that the next dominant animals on land, after a hypothetical demise of all mammals, would be the insects. Why so?

The building blocks of DNA are a amino acids b glucose c nucleotides d fatty acids

How long do footprints last at the sene of the crime?

Which of the following items would have the highest density? A. A 2 cm3 block of lead with a mass of 11 grams B. A 12 cm3 block of wood with a mass of 3 grams C. A 12 cm3 block of aluminum with a mass of 2 grams

Why are the nerves that take information from our world called sensory neurons?

Explain the effects of radiation on the cellular process of mitosis and meiosis

A biome that has a large amount of rainfall, high temperatures, and a poor soil is a