What is typical of cell reproduction when normal cells are reproduced in a petri dish from a tissue culture? check all that apply. 1. cells reproduce only when there is room in the petri dish. 2.cells reproduce one layer thick and then stop reproducing. 3. cells undergo unlimited reproduction by mitosis. 4.when a cell dies or is damaged, a new one is created to fill the empty spot.

1) Cells reproduce only when there is room in the petri dish.

2) Cells reproduce one layer thick and then stop reproducing.

4) When a cell dies or is damaged, a new one is created to fill the empty spot.

1, 2, 4

Explanation:

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thrombocytopenia, which is a deficiency in blood platelets, can cause bleeding and bruising in the dermis similar to senile purpura. other possible causes include: exposure to ultraviolet rays and aging skin are common causes of senile purpura. senile purpura may also be a sign of collagen loss in the skin and bones.

question: which statement best describes the different properties of metals?

answer: they are shiny and bend without breaking.

since metals have certain characteristics properties, they include the following: they are ductile, malleable, shiny, hard, lustrous, flexible and they are good conductor of heat and electricity. so therefore, metals are not dull and they are not non-flexible as listed. instead, they are shiny and flexible.

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