Add spaces: Annualspringfloweringplants,ontheotherhand,dieduringthewinter.

Answer: Annual spring flowering plants, on the other hand, die during the winter.

Add spaces: Description:SikaDeercalve.Captive.

Answer: Description: Sika Deer calve. Captive.

Add spaces: Avoidingoutbreaksthatstraintheimmunesystemiswhatmatters.

Answer:
Avoiding outbreaks that strain the immune system is what matters.