Develop from a single fertilized egg and have identical genes.
Answer:
peptide antigens by MHC class II molecules
Explanation:
Helper T cells are activated by peptide antigens by MHC class II molecules. These antigens express on the surface of antigen-presenting cells (APCs). After activation, the T helper cells divide and secrete cytokines to assist the immune response.
Answer:
W= 19.25J
Explanation:
W= F × d Equation
W= 5.5 × 3.5 Put numbers into variables
W= 19.25J Multiply and put in correct measurement
C. Precipitation fits the definition for “falling rain or snow”
Answer:
d) Increasing the pH makes it easier for lactase to function correctly.
Explanation:
