Aunique characteristic of birds is that they have

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind