What ideas were changing in the scientific community at the time darwin travels

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

Which of the following human activities resulted in the growth of the north american deer population?

Match each symbol with its description.