Viruses need host cells to replicate

true or false

Avery and his colleagues extract material from a killed sample of lethal bacteria. They eliminated carbohydrates, proteins, fats, RNA, and DNA from the extract and showed that exposure to the DNA alone could make non-lethal bacteria become deadly.

What balanced equation represents ammonia

A girl travels 20 miles on her bicycle the trip takes 2 hours express her speed in miles/hr

Carlos is studying the characteristics of a fundamental force. The force is sometimes repulsive and sometimes attractive. Which force could Carlos be studying? a. gravitational or strong nuclear b. electromagnetic or weak nuclear c.

What are the two chemical components of chromosomes which are the candidates for genetic material?

Which of the following BEST explains the importance of using periodization over time? Group of answer choices making things complicated to rehabilitate an injured joint or muscle making your program less boring continuous adaptation and preventing

Cells of the nervous system, including the brain, rely less on blood sugar (glucose) for energy than do other body cells.

What does the word endometriosis mean?

Which of the following is least likely to form at a convergent boundary? a mountain b trench c volcano d earthquake

In squash plants, the allele for yellow fruit (Y) is dominant to the allele for green fruit (y). A plant with genotype YY is crossed with a plant with genotype Yy.