Place the Following Organisms in Order of Appearance in the Fossil

question 114

Essay

Place the following organisms in order of appearance in the fossil record, beginning with the earliest.
A. ferns, algae, flowering plants, gymnosperms
B. amphibians, reptiles, fish, mammals

---

Definitions:

Nuclear Envelope

The double-membrane structure that encloses the nucleus of a eukaryotic cell, separating the nucleus from the cytoplasm and containing nuclear pores for transport.

Nuclear Pores

Openings in the nuclear envelope that allow the passage of ions, molecules, and RNA between the nucleus and the cytoplasm.

Lysosomes

Organelles in eukaryotic cells containing digestive enzymes used for breaking down waste materials and cellular debris.

Suicide Sacs

Specialized organelles in cells, known as lysosomes, that contain digestive enzymes which can break down the cell upon damage or death, acting as a cellular self-destruct mechanism.