Which of the following best describes the conditions on earth over 4 bilion years ago?

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

Mutations associated with albinism affect proteins involved in synthesis

The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an