Which part of the eye changes its shape to enable us to focus first on a distant object and then on a nearby object?

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

For this question look at the hydropic diagram water that is heated by the sun evaporates. select the number that represents it.

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled