Why do scientists only test one variable at a time

The thumb is the only saddle joint in the human body. Yes, the thumb is the only saddle joint in the human body.

How long do mud turtle eggs take to hatch?

Give one example of a question that science could test. Then, explain in your own words why it is an example of a scientific question.

What causes ulcers? What prevents them?

What evidence did Darwin use to support his theory of evolution? Select three options. O in-depth studies of individual organisms O observations of fossils finches on different islands had different types of beaks O young finches that acquired

Which group of organic compounds can speed up the breakdown of other organic compounds

Uv waves and gamma waves can cause dna mutations that result in various forms of cancers. explain why using the terminology found within the passage. give one example of the damage caused by one of these waves.

You go for a run and breathe heavily for an extended amount of time. How is this affecting your pH levels?

Compared with normal hemoglobin, the hemoglobin of a person with sickle cell disease a. is longer. b. is shorter. c. has a different sequence of amino acids. d. is sickle-shaped. e. has the same sequence of amino acids.

If a white dwarf in a binary star pair is accreting mass and it exceeds the 1.4MSun limit, it will: Turn into a Neutron Star Turn into a Black Hole Turn into a Main Sequence star. Explode