Describe the investigations and experiments that produced the evidence that led to our current version of cell theory

examination of bark of tree by Robert hook 1665 also experiment conducted by MJ.schleide1838 in plant as botanist

Also experiment conducted by Theodore Schwan in animal as zoologist 1839

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.