The scenario that might reverse the action of the pump when some organisms that normally live in pond water contain water pumps, If endocytosis happens then water molecules will move into the cell then ion/solute concentrations will be higher in the cell causing a hypotonic solution.
Answer:
Actually, polluted caves endanger water supplies and wildlife. Caves are home to some of the planet's most unusual creatures and important drinking water supplies. Now these underground resources are being polluted by surface activities, ranging from sewage spills to old factories. Most of the animals go on adaptation way which is a way an animal's body helps it survive, or live, in its environment. Even camels have learned to adapt (or change) so that they can survive. Animals depend on their physical features to help them obtain food, keep safe, build homes, withstand weather, and attract mates.
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This would affect greatly on the muscle tissue since it cannot survive without oxygen. Stem cell plantation is a important step for cell transplantation.
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The correct answer is: A checkpoint will be activated if the spindle does not attach to a kinetochore.
Prokaryotes, do not undergo mitosis (like eukaryotes) and therefore have no need for a mitotic spindle. Prokaryotes also don’ t have checkpoints foor the regulation of cell division.
Normal eukaryotic cells (unlike cancer cells), move through the cell cycle in a regulated way in order to make sure that cells don't divide under conditions that are unfavorable for them. Information about their own internal state (nutrients, signal molecules, DNA integrity) is signal to go or not to go through the cell division. Because of that there are few checkpoints in the cell cycle at which the cell examines the signals and makes a “decision”. The major checkpoints are:
• The G1- the first point at which it must choose, once it passes the G1 checkpoint the cell enters S phase
• The G2-the cell checks DNA integrity and checks if replication is done well.
• The spindle checkpoint-at the transition from metaphase to anaphase.