The answer is D
Remember onion cells are plant cells
Cheek cells are human cells
Both of them are eukaryotes
The difference between plants and animal cells:
Plant cells
Have a cell wall, central vacuole, dna floating in cytoplasm, no membrane bound organelles
Animal cells
cell membrane no cell wall, nucleus, membrane bound organism
What do you mean by this?
The problem you'll face if you don't have gliding joints in your body is : You won't be able to move shoulders.
P ( fail U infection ) = P ( fail ) + P ( infection ) - P ( fail AND infection )
==>
0.03 + 0.16 - 0.01 = -.18
==>
P ( success AND infection-free )
==>
1 - 0.18 = 0.82
==>
Therefore, 82 percent of these operations succeed and are free from infection.
It is completely normal to get results that do not support the hypothesis.
If a scientist encounters this, he/she should refine (change) the hypothesis and perform the experiment again.
Hope this helps!
