4. Various species of ammonites are excellent index fossils that mark the Jurassic and Cretaceous periods. What can a scientist conclude about two
separate rock layers that each hold ammonite fossils of the same species?
Do the depths of the rock layers affect this conclusion? Explain your
reasoning.

Select the correct answer.which scenario describes unethical lab behavior? o a. danny stores the chemicals required for his experiment in flasks and beakers.b.anna publishes the results of her experiment on the growth rate of saplings.c.jason repeatedly runs an experiment until he gets the results he desires.d. mia records her observations of an experiment precisely and accurately.

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

How do chloroplasts set plants apart from other living things