Another name for unicellular organisms that dominated Earth up to the Precambrian time is

A. cyanobacteria.

B. stromatolites.

C. eukaryotes.

D. prokaryotes.

Which of the following is found in the cytoplasm of bacterial cells? a. cell membrane b. nucleus c. genetic material d. flagella

Identify at least five examples of goods or services that you get from an ecosystem

Which of the following is the correct definition of electrical energy? A. energy an object has because of its motion or position B. energy resulting from the flow of charged particles, such as electrons or ions C.

What happens when the spinal cord is injured? A. The parts of the body using the damaged areas lose sensation. B. The affected neurons in the CNS regenerate gradually. C. The path of impulses in the nervous system may be disrupted. D.

what will be the outcome of mother with type A positive blood and a father with type O blood produce a child?

Which of the following statements is most accurate? A. Warm air sinks. B. Warm air is less dense than cold air. C. Warm air is denser than cold air. D. Warm air exerts more pressure on the land than cold air.

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.