How do scientists use radioactive decay to date fossils

Which image shows labeled organelles that are present only in plant cells?

In a cladogram, what occurs at a node? a derived trait appears. evolution is stopped. an ancestor dies. the cladogram ends. aa as s as ss what are the chances that their offspring will have sickle cell anemia? 0% 25% 50% 100%

Where does oogenesis take place ? seminiferous tubules fallopian tubes ovaries uterus