Which statement describes the structure of DNA?

A. a single strand of amino acids B. a single strand of nucleotides C. a double strand of nucleotides D. a double strand of amino acids

Explain why the Nile floodplain and its annual did cycle provided an ideal situation for building an agricultural civilization

What is an important trait or skill for a scientist to have? Avoidance of bias Using personal bias Using personal prejudice Manipulating results to fit a hypothesis

If a person has memory B cells against a certain pathogen, the person is ... less likely / more likely (circle one) to develop the disease a second time?

An 80 year-old with internal bleeding is admitted through the emergency room after a motor vehicle accident. the physician has ordered 2 units of packed red blood cells (1 unit is 250 ml) to infuse over 1 hour each.

The group of approximately 100 cells that forms from a fertilized egg is called the

Which definition best describes global warming? A. A long-term change in the Earth's climate B. A long-term increase in the Earth's average temperature C. A long-term change in the climate of a region or a city D.

Which of these phases of mitosis takes place first?

1) which color has the longest wavelength? A - red B - blue C - green D - orange 2) gamma rays, X-rays, visible light, and radio waves are all types of ___.

2) Which Sex Chromosome contains more Sex - linked traits and WHY?

Write the reaction for aerobic cellular respiration