Organisms with advantageous adaptations are more likely to survive and reproduce than organisms without the advantageous adaptations. this phenomenon is known as natural selection. in order for natural selection to occur, a. one population must become extinct so another can be created. b. there must be more male organisms than female organisms. c. all of the organisms within a population must be exactly the same. d. organisms within a population must have some genetic variation.

There are few cells in the body that do not undergo mitosis: most somatic cells divide regularly, some more than others. take for example the cells that line the digestive tract. these cells must be frequently replaced because they are constantly eroded by the movement of food through the tract. what mechanism(s) is/are in place to ensure that these cells are exact copies of the mother cell

100 points and brainlest its 6th grade work compare the parts of a cell and the cell as a whole to another common nonliving system (i.e., a car, a city,

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. show the flow of energy in the following ecosystem by labeling each organism's link in the food chain. click once to select a label. click again to place the label in the correct location.