What is the backbone of DNA made of?

sugar and phosphates

nitrogenous bases and sugar

nitrogenous bases, sugar, and phosphates

a polymer of nitrogenous bases

Two white sheep are bred to one another. Over the span of several years they produce three white offspring and a black one. What is a possible explanation for this?

What is the fundamental process underlying the movement of the plates?

The northern red-legged frog, or Rana aurora, is found along the western coast from British Columbia to Northern California. Their typical breeding season lasts from January to March.

What evidence suggests that the first tetrapods were amphibians?

The bones in the front fins of whales and the bones in the human arm evolved from a common ancestor but carry out different functions. This is an example ofA. homologous structures. B. vestigial structures. C. embryonic structures. D.

What is a difference between Newston's laws of motion and Elinstein's theory of relativity?

How to use passive transport in a sentence

The greenhouse effect is related to the increase in average surface temperatures known as

Which of the following is true about spring tides but is not true about neap tides? they must occur during a new moon in spring they occur during the moon's first quarter and third quarter phases they only occur during a full moon they can occur

Animal cells are bathed in an isotonic fluid, and plant and bacteria cells have a cell wall. What does this protect the cell membrane from?