Which of the following is true? a Electrons tend to stay in the nucleus of their atom. b Protons are easily moved around b . c Neutrons are easily moved around. d All of the above are true. e None of the above is true. N

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

According to theories of how life began, how did early organic molecules begin to separate from the outside world? a: specialized enzymes were required b: chains of amino acids created a barrier c: formation of microspheres or vesicles d: rna catalyzed the formation of membranes

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations