A multicellular organism develops from a zygote that undergoes both cell division and differentiation as it grows into an adult what explains the fact that cells are able to differentiate into adult cells with different structures and functions even though they all have the same DNA? A. External and internal cues trigger different genes to turn on and off in different cells
B. The cell nucleus controls the expression of genes based on a pre-determined sequence
C. Chromosomes are keyed to be expressed only in some cells but not in others
D. Cells randomly express different genes during development

Be in this im starting a with you so if you want you can get a partner for this. but basically im going to assign you guys a biome and you have to have a big sheet paper and you will turn it into 4 squares. the top right square is will be a drawing square for a drawing you will make of your biome. the top left square is about the biomes plants and drawings of them. the bottom left square is about the biomes animals. the bottem rights square is about the description of the biome. leave a comment or an answer and i will assign biomes. if your request one thats the one you get. send me a link to the project and i will grade ! im not a teacher btw.

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis

Which chemical bond most likely stores the most energy? o a. double carbon-carbon bond o b. single carbon-carbon bond o c. hydrogen-oxygen bond o d. sodium-chlorine bond