What kind of scientific investigations do not involve observations

Why is a frameshift mutation more damaging than a substitution?

Why is there a trade-off between survivorship and fecundity? A. Fitness trade-offs occur because fecundity is higher in young organisms and survivorship is higher in older organisms. B.

Pigments define the plant's: Smell Taste Shape Color Texture

How does a mutation cause a change in a protein?

Explain how fossils are formed in three steps the last step being: The preserved fossil remains may later be discovered and studied.

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?