How many letters does DNA have?

Galaxy #3 To which category does galaxy #3 belong? Why does it belong in this category?

Describe 3 ways a mutation can occur?

When water and nutrients from the soil travel up from the roots of a plant through the stem to the leaves, they do so in which of the following structures?

what does possible advantages does hydroponic gardening (growing plants in water) have over growing plants in oil?

What's a fresh water biome

Name the two energy-equivalent molecules that contain three phosphates as part of their structure. what makes these two molecules different? how many high energy phosphate bonds do they contain? nutrition

During what period of time has the sunbelt region of the u. s. grown most quickly?

The axial skeleton includes the A) vertebra, skull, and ribs B) hip bones, knees, and feet C) shoulder bones, elbows, and hands D) bones of the fingers and toes

After transcription, nuclear RNA is capped, polyadenylated, spliced. After successful splicing, proteins are added to the mature mRNA at the exon junction complex and then transported to the cytoplasm.

How would you distinguish adaptations and variations for a younger student?