Which of the following is not a type of adaptation? A. Functional B. Mechanical C. Behavioral D. Structural

Which ionic compound is water soluble? A. cuS B. NH4NO3 C. SrSO4 D. ZnF

why is the concentration of helium increased in some gas mixtures that divers breath in order to reduce the partial pressure of oxygen?

1 kg is equal to ... Options: 1) 103 hg. 2) 103 g. 3) 10-2 cg. 4) 10-2 g.

Bases: 1.) are generally proton acceptors 2.) produce OH - ions in soulutions 3.) are electron pair donors 4.) may include all of these characteristics

Which 2 particles need to be in balance so that the nucleus is stable

What do scientists do during data collection? O A. Analyze information to form a summary B. Gather information during an experiment C. Observe and ask scientific questions O D. Design an experiment to test a hypothesis

Organic molecules always: A. contain carbon. B. contain carbon, hydrogen, and oxygen respectively in a 1:2:1 ratio. C. are produced by living organisms. D. dissolve in water.

Whats the scientific notation of 0.00000923

A catalyst increases the rate of a chemical reaction by

What energy is changed to cell energy in stage 1 of photosynthesis. true or false