Answer:
Electromagnetic waves have many different wavelengths and frequencies that span a range known as the electromagnetic spectrum. Light of different wavelengths produces different perceptions of color. The longest wavelengths produce the perception of red, while the shortest ones produce the perception of violet.
Answer:
4) Some people consider human genetic experiments
unethical.
Explanation:
1) Humans have DNA that is structurally very different from
other mammals.
2) Cloning can only he performed on animals that normally
reproduce asexually.
3) Human genes are made of too many different types of
simple sugars.
4) Some people consider human genetic experiments
unethical.
The statement that provides the most likely reason that a human has not yet been cloned is that some people consider human genetic experiment unethical.
<em>Option 1 is incorrect because human DNA is similar in structure to other living organisms with components such as a phosphate group, a deoxyribose sugar and purine/pyrimidine bases.</em>
<em>Option 2 is incorrect because cloning is not limited to asexually reproducing organisms only. Sheep, for example, produces only sexually and has been successfully been cloned.</em>
<em>Option 3 is incorrect because human genes, just like every other organisms is consist of DNA with deoxyribose pentose sugar being one of the components. The situation of too many different types of simple sugars doe not arise.</em>
The correct option is 4.
Cells are so small so the surface area and volume of them can be proportional to each other. This helps with the efficiency of the cell's absorption and waste expulsion processes. Also by the cell's smallness, communication from the nucleus to other organelles is fast and the cell can be regulated while the conditions for diffusion are still ideal.Its because they need to be able to diffuse through materials easily. Also, materials inside and outside of the cell need to easily pass through the cell membrane, which makes it harder and slower for the materials to pass through the cell membrane.
I think it depends on what kind of cancer they’re talking about
Answer:
the beginning of the journey of the red blood cell starts in the bones (inside it) where there is formation of blood cell. the the aid of the capillary(within it), the red blood cells travels round the body. the deoxygenated blood then goes to the heart in the vena cava. the red blood cell then journey into the right atrium even after the red blood cell has made its way into the heart, the right atrium contracts and then pushes the blood cell via the tricuspid and thereafter into the right ventricle where the right ventricle then contracts and pushes the blood cell out of the heart via the aid of the semi luna.
the red blood cell journey down to the lungs, picks up oxygen and goes back to the heart and enters the left atruim and its contracts and pushes the blood cell via the bicuspid into the left ventricle which pushes the red blood cell out of the heart into the aorta, journey down to the kidney's trunk and lower limb's. the the deoxygenated blood then travels up with the aid of the vena cava. it is a circulatory process. all the process goes round and start again from the beginning
Explanation:
