Darwin came up with the theory of natural selection, and the idea of
survival of the fittest. In order for natural selection to occur, many things
must happen. Which of the following is NOT a requirement of natural
selection? *
O
There must be diseases and natural disasters present in an ecosystem.
O
There must be competition for food, habitats, and/or mates.
O
There must be variations and adaptations present within a species.
There must be reproductive success, and be able to produce viable offspring.

There must be diseases and natural disasters present in an ecosystem.

Explanation: The other two answers must be present for it to be natural selection.

There must be diseases and natural disasters present in an ecosystem.

Explanation: The other two answers must be present for it to be natural selection.

Explanation:

69 is the correct math for the amino acids

measuring physical properties lab reportinstructions: in the physical properties lab, you will test the physical properties of different building materials in order to pick the appropriate materials for a new home in tiny world. record your observations and test measurements in the lab report below. youwill submit your completed report.name and title: lyric lawton, mr.herbert, 10/13/17, physical properties lab. objective(s): i need to parvus build his house out of the right material, so he will stay cool in the mountains.hypothesis: if we use wood to build the roof of the house, then the temperature inside the house will remain cooler.if we use clay brick to build the walls and floors of the house, then the temperature inside the house will remain cooler.if we use aluminium to bring electricity into the home, then it will allow electricity to flow into the home at a faster rate.if we use iron to construct the latches on the windows and doors, then the magnetism will keep the latches secure.