Which organism appeared on Earth first?

The removal of nearly all the Predators from an ecosystem would most likely result in

Which of the following statements is true about the role of water in celular respiration? It reacts with glucose. It reacts with oxygen It is one of the beginning compounds. It is one of the ending compounds.

Study of temperature

As wind velocity decreases the distance between isobars on a weather map will A) decrease B) increase C) stay the same

How many ATP are generated in the electron transport chain?

Which human activity has had the greatest impact on climate change? A. deforestation B. burning fossil fuels C. production of nuclear waste D. building skyscrapers

How long can food that requires time-temperature control be left in the danger zone? A. A maximum of 3 hours B. A maximum of 4 hours C. A maximum of 1 hour D. A maximum of 2 hours

Explain the characteristics of this soil sample that likely allowed Judy to make this identification. Include particle size and texture in your response.

Rick uses an electronic air sampler to determine the amount of dangerous chemicals in the air. Which functions of the air sampler confirm that it is an electronic tool? Check all that apply. It collects chemical data.

Prokaryotic cell lacks membrane - enclosed structure is called?