Which organelle can be compared to a security guard who decides whom may enter a building and whom may not?

What is the 77 element on the periodtic table

Pls quickly! which of the following is true about the behavior of an organism? a. the behavior of an organism is influenced by both its heredity and it’s environment. b. the behavior of an organism is influenced only by the treats it inherits from its parents. c. the behavior of an organism is influenced only by the environment in which it lives in. d. the behavior of an organism is not influenced by either it’s heredity or its environment.

In which ways are mercury and venus similar?