Answer;
+1,-1,+2,-2,+3,-3
Explanation;
-Valence is the number of electrons lost or gained to complete an element's outer energy level.
-When an atom gains or loses a valence electron, it forms an ion. Atoms form ions in order to help another to obtain a full octet and to stabilize the valence.
-Some atoms gain or lose electrons to form ions because they need to become more stable. They sometimes give them to have an outer shell or gain them to get a closer charge to eight.
Answer:Dna determines your apperance. Traits are something you inherited
Explanation:
The parents are of genotype heterozygous dominant and homozygous recessive. Supposing the dominant allele is N and the recessive allele is n, one of the parents will be Nn while the other nn. The phenotypic (based on visible characteristics) ratio will be 1:1 for dom/rec and rec/rec as indicated in the diagram below.
Answer: nose, throat, and sinuses
Explanation:
because its an infection of the upper respiratory system.
Population size is the number of individuals in a population. Population density is the average number of individuals per unit of area or volume.
