The answer would be B. Redi and Pasteur
Hope this helps!
1. Establish routines. Young children thrive on them, and they make perfect fodder for enhancing your child's memory.
2. Play memory games. Ask questions when you're out and about. For example, if you're passing a friend's house, ask, "Who lives there?" Games like this give children experience in recalling information.
3. Demonstrate how to perform tasks. Babies model their parents' actions. If you want your child to learn how to do something, such as stack one block on another, show him how and then give him a turn.
4. Talk with your child about her experiences. Focus on events that resonated strongly with her, such as a trip to the zoo. As she gets a little older, help her make stories out of her recollections.
The two cells that result from a single cell need to have the same amount of genetic material as the initial cell, therefore the DNA needs to be duplicated before the cell divides.
The sister chromatids are attached together so that during anaphase the daugther cells will receive the same chromosomes
Answer:
Less stable : An ecosystem with populations that mate with only related species
Less stable : An ecosystem that has many species at every trophic level
More stable : An ecosystem with populations that mate with unrelated species
More stable : An ecosystem that has very few species at every trophic level
