Are groups of cells that have similar structures and functions.
a. organs
b. tissues
c. organ systems
d. organisms

Tissues

Explanation:

Tissues are groups of cells that have a similar structure and act together to perform a specific function.

Four types of tissue: Epithelial, connective, muscular, and nervous

i think the answer is b eurasian plate

i said i think

as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.