Describe One way that sickle cell disease can cause red blood cells to have a reduced lifespan

Which of the following lines of evidence would best support your assertion that a particular plant is an angiosperm? a) it produces seeds. b) it retains its fertilized egg within its archaegonium. c) it lacks gametangia. d) it undergoes alternation of generations.

Classify the structures as homologous or analogous, depending on their structure and function.

Amoeba sisters video recap pedigrees