POSSIBLE Which of the following is a unicellular organism.
Human
Oak tree
ant
bacterium

How many species of living things are alive on earth today? more than 1,000,000 none of these answers are correct 100-500 1,000 –500,000 o 500,000 -1,000,000

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere

The transport tubes from food came down the plant are called?