Answer: Leeuwenhoek biggest contribution is to the first tenet of the cell theory.
Explanation: the first tenet of cell theory states that every living being is made of cells and even an organism can be made of just one cell able to reproduce by itself.
Leeuwenhoek observations stablish the existence of microscopic structures alive some with movement. This helped other scientists to determinate this structures were cells that can make vital processes such as feeding, breathing or reproducing which are determinant in biological definition of life.
Respiratory and circulatory systems work hand in hand to expel wastes. respiratory system removes CO2 and the circulatory uses the blood as a medium to move excess salts and water from source to sink.
Mitosis is the process by which a parent cell divides into two daughter cells that are genetically identical to each other and to the parent cell. The parent cell of 10 chromosomes will end up becoming two daughter cells that each have a copy of those 10 chromosomes.
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Answer:
Animal cells and plant cells
Answer:
Animals only is the correct answer
Explanation:
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