Why do scientists usually do experiments? A. to answer a question or solve a problem B. to make more problems for schoolchildren to solve C. because they think that they are fun D. because they want to get paid for the job

What is atmosphere if pressure Greatest near earths pressure

The main reason that it's important to test only one variable at a time is so that A. quantitative data can be recorded. B. scientists can easily tell which variable caused the results. C. qualitative data can be recorded. D.

Which soil is best for growing crops? A. sandy soil. B. loamy soil. C. clayey soil. D. chalk soil. E. peaty soil. F. none of above.

If a shipwrecked crew drinks sea water, they will probably die. why?

A normal human female has how many pairs of homologous chromosomes?

Without the sun there would be no life on earth this is because the sun is the major source of all

Which characteristics do mars and earth sure

What is the precipitate in the following reaction? BaCl2 (aq) + Na2SO4 (aq) → BaSO4 (s) + 2NaCl (aq) O A. Na2SO4 O B. Baso O c. BaCl2 O D. Naci

How does connective tissue differ from the other three major tissue types? A. Connective tissue often consists of relatively few cells embedded in an extracellular matrix. B. Connective tissue consists of contractile proteins. C.

What is the primary center of signal integration in humans?