Which two factors can both cause a population to increase?
birth rate and emigration
birth rate and immigration
death rate and immigration
death rate and emigration
sur
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Which of the following descriptions of proteins are true? i. proteins can have different sequences of amino acids. ii. proteins can have different shapes. iii. proteins can have different numbers of amino acids. a. only i and ii are true. b. only ii and iii are true. c. only i and iii are true. d. i and ii and iii are all true. e. none are true statements

What are the types of mutations, and how does each alter the encoded protein? college level answer

What is hydroelectric power produced by?