To which part of the DNA nucleotide do the letters A, T, C, and G refer?

A. The phosphate group

B. The nitrogen base

C. The deoxyribose

D. The amino acid group

Which would be a result of a malfunctioning excretory system? paralysis memory loss toxic buildup difficulty breathing

The idea that energy can not be created or destroyed is the law of what

Which of the following statements is correct? Which of the following statements is correct? A joint that exhibits adduction and extension is uniaxial. If a joint can exhibit flexion, extension, and abduction, then it is triaxial.

Describe the january and july temperatures in texas

Gina is an ecologist, She is studying damage to tree bark in a forest. Initial research suggests that a new animal species that's entered the area caused the damage. So, Gina draws a model to show her colleagues what's happening.

If the thyroid gland is unable to produce iodinated thyroglobulin, what is the effect on hormone production?

What factors have an effect on sea life in the long island sound

Why is the control group important for a scientific experiment

Why is the cells ability to differentiate an advantage to multicellular organism

What goes into a leaf? and what goes out?