PLZ HELP if your get it right i will give you a brainliest don't guess pls When comparing cells to organs, which best describes how organelles differ from organs?

A. Organelles are larger than organs.

B. Organelles cannot be stained, organs can.

C. Organs are composed of tissue, organelles are not.

D. Organs are a substructure of a cell, where organelles are not.

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

Once an egg cell is fertilized by sperm, the cell then, as the embryo develops, it receives nourishment and eliminates wastes by transferring substances from its blood to its mother's blood. a. becomes a fetus immediately and exits the womb b. begins to divide and implants itself in the wall of the uterus c. remains in the uterus without dividing for several months d. travels back to the ovaries until the fetus is developed