What parts of a nucleotide make up the backbone of a nucleic acid? pairs of nitrogen bases pairs of sugars sugar and nitrogen base sugar and phosphate

What are tissues? a groups of tissues that work together b basic units of structure and function c groups of cells that perform the same function d multiple organs that perform a major function

Recommend a strategy for incorporating sustainable human activity into a tropical rain forest biome.

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!