Electromagnetic waves are all around us T or F
2. Radio waves can be as long as a mountain base T or F
3. Electromagnetic waves and ocean wave both have energy T or F
4. All wavelengths are the same distance T or F
5. Frequency is how fast waves travel per second. T or F
6. Adding more or faster frequency gives more energy T or F
7. Gamma waves has the highest “most” frequency T or F
8. Our eyes only see radio waves T or F
9. In the visible spectrum some wavelengths are reflected, and some are absorbed from an object T or F
10. We use the EM spectrum to learn more about the Earth, Sun and universe T or F

2. True, 3 True, 4 Trues, 5 False, 6 True, 7 True, 8 False, 9 True, 10 True

Explanation:

3. True , Electromagnetic waves have electric and magnetic energy while ocean wave have kinetic energy which is then converted into electrical energy.  

4. True, the distance between all the wavelength is same until and unless it not dampened or attenuated or amplified.  

5. False, Frequency measures the number of times an event takes place in a given time period.  

6.   True, the higher is the frequency , the more will be the energy

7. True, Gamma waves have highest frequency

8. False, our eyes could see only visible spectrum wavelengths

9. True, some object or surfaces reflect the wavelength while some absorb it.  

10.  True, all cosmic researches are driven by EM waves theory and related logic.

this is math not biology xd

cells use diffusion to get substances in and out of themselves. that diffusion will occur across the cell membrane or the outer covering of the cell. because we are talking about the surface of the cell, surface area and volume are  important factors here. as a cell increases in size, its surface area and volume increase as well.  we call that the surface area to volume ratio (sa: vol).  but the catch is that  volume increases at a greater rate than surface  area. in other words, as a cell gets bigger, the sa: vol gets smaller. so a really small cell like bacteria is mostly cell membrane (surface) with very little contents (volume). a really big cell like an egg, is mostly insides with a super thin membrane. so what ends up happening is that the cell cannot efficiently diffuse all of the stuff it needs in/out to survive. therefore cell size is limited to about 100mm. so how do we make organisms bigger than 100mm? cells divide! by dividing and becoming multicellular, organisms are able to grow!   check out the diagrams i attached to see the effect of sa: vol. i hope this ! good luck!