When examining cells in the lab you noticed a particular tissue sample is 45% of the cells in the mitotic phase how do you explain this observation

This observation shows that the tissue is growing or renewing itself.

Most tissues of the body grow by increasing their cell number which is achieved via mitosis (cell division). This kind of growth is highly regulated in order to maintain a balance between different tissues. On the other hand, cell division is involved in tissue renewal where many types of cells undergo continuous replacement. The example is skin. Skin cells are constantly being replaced by division of immature stem cells (the mature differentiated cells do not divide).  

true, i don't really know what you're asking but from the info you provided im guessing the answer is true.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek