Scientists have recently modified the bacteria that cause tooth decay by inserting a fragment of DNA into the bacteria's DNA that prevents it from producing lactic acid. What is the new DNA called?

Why are there several structurally different pigments in the reaction centers of the photosystems?

Cornelius sees a landform with almost vertical layers of sedimentary rocks. Which of the following statements is most likely true? -The rock is not really sedimentary. -A geologic event shifted the rocks.

An astronomer has proposed a new theory about the evolution of the universe. What is the next step that the astronomer should take to make his theory reliable? A. allow other scientists to repeat the experiments to verify the results B.

What do all macromolecules have in common with each other

The legs of a trapezoid are parallel. true or false.

Why are crickets primary consumers

Enzymes are typically what type of biomolecules

Why do turtles walk so slow?

What gas is made and released during Cellular respiration? What step does this happen in? A) CO2, Krebs Cycle B) O2, Calvin Cycle C) O2, Krebs Cycle D) CO2, Calvin Cycle

Suppose you observe a bird with a very broad and thick beak. You want to know why the bird's beak is shaped that way. How could you begin to use the scientific inquiry process to explore this question? Check all of the boxes that apply.