How does a toxin cause mutations in humans?

A. It alters the sequence of human DNA

B. It increases susceptibility to viral infections

C. It inhibits the production of white blood cells

D. It produces antibodies

What are two processes that must occur to form soil? A. erosion transports mineral particles and plants die and decay B. Plants produce loam and plants produce humus C. erosion and weathering D.

The enzyme telomerase is part protein and part RNA. What would be the most likely effect of a large deletion in the gene that encodes the RNA part of telomerase, and how would the function of telomerase be affected?

Why do we need energy? What is it used for?

The first open releasing the energy of glucose in the cell is known as

What are two examples of urbanization that can affect an ecosystem?

Which diseases are caused by viral infection? Anthrax West Nile Measles Hepatitis A Chicken Pox Tetanus Rabies Bubonic Plague Influenza (flu) Hepatitis B Mononucleosis Gonorrhea Lyme Disease Cholera Whopping Cough Common Cold

Which of the following is not true regarding the formation of a dipeptide? A. a molecule of water is produced B. two amino acids are joined together C. a double bond forms between carbon and nitrogen D. a protein is formed

What are the two characteristics of autotrophs

Why is it necessary to do a spinal tap when you suspect a bacterial infection of the central nervous system? why can't you use a blood test?

Name the major greenhouse gasses and how they get into the atmosphere