Please help me I will give you the brain thing and extra points. use the periodic table to predict which element has the least metallic character.
A. Silicon
B. Sodium
C. krypton
D. potassium

Describe at least 2 abiotic and two biotic factors found in the desert biome how do these abiotic factors interact with the biotic factors

What abo controlling alleles could kim give her child

Pls me i need this ! each cell has genes activated depending on it's job and what kind of cell it is. it is the presence of that causes the repressor protein to fall off and unblock the gene on the lac operon. if a gene is turned on then it is being an additional circular chromosome found in some bacteria that is used in genetic engineering.