Oxygen (O) atoms have six valence electrons and beryllium (Be) atoms have two valence electrons. Which of the following is the correct formula for a compound made of oxygen and beryllium?

Why do all marine algae live near the ocean surface?

Atoms have no eletric charge because

Yersinia pestis, the organism that causes the bubonic plague, led to the deaths of approximately 75 million people is the 1300's. This was known as the Black Death. Which type of organism caused the bubonic plague?

Which chromosome is involved in Prader Willi and Angelman Syndrome? A) Chromosome # 46 B) Chromosome # 1 C) Chromosome # 15 D) Chromosome #23

What chemical structure makes up the cell membrane? protein bilayer hydrophilic phosphate phospholipid bilayer hydrophobic fatty acid

The specific receptors responsible for rotation found in the semicircular canals is called a. Ampulla b. Vestibule c. Auricle d. Saccule e. Crista

Penicillin is hydrolyzed and thereby rendered inactive by penicillinase (also known as b-lactamase), an enzyme present in some penicillin - resistant bacteria. the mass of this enzyme in staphylococcus aureus is 29.6 kd.

Which of these accurately describes a scientific theory? Select one: A. Theories are statements that describe some aspect of the universe. B. Theories are broad explanations based on many observations and experimer C.

Which Scientists Gave Cells their name while observing cork under a microscope

What. System rid the body of carbon dioxide?