Answer:
1. The observable universe
2. the moon
3. false
4. a black hole
5.
6. moving away from us
7. stretch as the galaxies move away from us
8. expanding
9. cosmic microwave background
Answer:
Energy is passed between organisms through the food chain. The organism that obtains energy from sunlight is called the producer.
Explanation:
It helps to give solid evidence of natural selection. The idea is that there are a number of finches in the Galapagos Islands. These birds vary slightly in appearance, in the function of their beaks and in size. Two species can eventually alter themselves because of the environmental conditions they live in. Some traits will be passed on or developed in one group and not in the other or vica versa. These finches are remarkable in that it did not take long for the changes to take place. It is probably one of the strongest reasons for believing in natural selection, because only those birds who could adapt to change could easily pass on these advantages to their offspring. The relatively short period of time to enact these changes is what makes the this example so attractive.
The answer is B
Explanation: RNA is single stranded and contain uracil
Answer:
Increasing the size of the cube-shaped cell increases the volume. However, the surface area-to-volume ratio decreases. This means that the simple diffusion would take more time distribute nutrients across the cell (and even in the eliminate waste). It would need bulk transport such as vesicle transport, otherwise cell activities would slow down.
