What must happen to a DNA molecule before RNA polymerase can make RNA?

Climate change and succession both result in a change to the ocean ecosystem. What is succession?

Which of the following is common to both eukaryotic and prokaryotic cells? A-Nucleus B-Nucleolus C-Plasma membrane

An earthworm has a heart that moves blood. What is the main function of this organ? A. To take in oxygen and remove carbon dioxide B. To take in and digest food C. To transport materials to and from body cells D. To respond to the environment

Which molecule allows a blade of grass to stand straight?

Susan is unable to tell the difference in taste when biting into an apple or an onion. she is likely suffering from

What is back and faward movement (Ear and sound)

The normal pacemaker of the heart is the

How do daughter cells get their dna

The creature in the photograph is a protist, which is composed of only one cell. This means that a protist A) cannot reproduce. B) is a living organism. Eliminate C) cannot survive in water. D) gets energy directly from sunlight.

What is a cost of using technology to transport water?