Which of the following is an example of the first living organisms that dominated Earth's surface?

trilobites

prokaryotes

eukaryotes

heterotrophs

Saponification is what type of reaction? 1. acid-base 2. dehydrogenation 3. hydrolysis 4. hydrogenation

Explain the difference in function between the left ventricle and the right ventricle of the heart. How is each one adapted for its particular function?

Which parts of an ecosystem perform cellular respiration? Which one is the right one : producers, primary consumers, secondary consumers, decomposers or dead matter

What quantity can you tell you whether a solution is acid or basic

Your grandmother unfortunately had a stroke over the weekend. you take her to the doctor, and the doctor says to expect some declarative memory loss. what will your grandmother have problems with?

How do solid solutions and gas solutions form.?

Why can psychologists claim that psychology is one of the oldest scholarly disciplines as well as one of the newest? Explain why modern psychology is a product of both nineteenth-century and twentieth-century thought.

The type of stress is most commonly associated with illness and disease is [blank] stress.

Describe the components of the peripheral nervous system and central nervous system and explain how they work together in your body.

Oil spills happen in our oceans. Some oils contain volatile organic compounds; these compounds make the oil denser.