Notch is a receptor protein displayed on the surface of certain cells in developing fruit fly embryos. Notch's ligand is a membrane-bound protein called Delta that is displayed on the
surface of adjacent cells. When Notch is activated by its ligand, the intracellular tail of the
Notch protein becomes separated from the rest of the protein. This allows the intracellular
tail to move to the cell's nucleus and alter the expression of specific genes. Which of the
following statements best explains Delta's role in regulating cell communication through the
Notch signaling pathway?

What role do bacteria play in the carbon cycle

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse