In genetic engineering A. Scientists add or change the genes on a chromosome. B. Natural selection is used to determine which traits to keep or eliminate. C. Dominant and recessive genes are mixed together randomly. D. Mitosis divides a cell into two equal parts.

2polhiswhere is the energy in a glucose molecule stored? ooa. inside the carbon atomsb. inside the protonsc. in the bonds between the atomsood. inside the hydrogen atoms

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

What is used to keep track of the gamates and possible offsprings combination