An element’s in the periodic table shows its . Each is an energy level. • For most elements, the outermost level is only with electrons. • Electrons in the outermost level are called .  They allow atoms to and form or substances. The number of valence electrons determines how an element reacts with other elements. • For the first 3 rows: To find the number of valence electrons for elements in the first three rows, count how far along in a row the element is, and that number is the number of valence electrons. • Many depend on valence electrons

Recombinant dna (rdna) creates offspring which are genetically identical to the parent is the process of breeding only organisms with desirable traits involves the removal of the nucleus of a cell combines genes from organisms of different species in a lab

Apopulation of rabbits live in a local forest. some had a mutation for a large body and long legs. the graph below shows the number of both the mutant and the normal rabbits over 5 generations. which of the following statements is true for this scenario? question 7 options: the rabbits with the mutation were more successful with restricted food than the normal rabbits. both sets of rabbits were equally successful with the restricted food source.i the normal rabbits were more successful with restricted food than the rabbits with the mutation. the graph does not let us know which rabbit was more successful.

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