Q6: A
Q7:D
Q8:C
Reasoning
Q6: Based on all the other questions talking about common ancestors I deduced that to find a “common” ancestor they need to find things that are the same.
Q7: All arthropod have a exo skeleton for example a lobster or crab. They all have a head, abdomen and thorax for example ants. They all have legs with joints for example a spider.
Q7:So bones are traveled down by ancestors so the types of bones stay the same but natural selection has changed them to better fit their environment.
All of them should be correct except for the upper left box of question 8. The correct genotype of the box should be WW instead of Ww.
When making a punnett square, all the results in the 4 boxes are combinations of the alleles present in the parents. The different combinations in the square are listed according to the allele on its left and on its top. For example, in question 9, the first box of the square (left upper) should be a combination of R and R, because the allele on the left side and the top (outside the box) are R and R. And the 2nd box, which is the upper right, should be Rr, because the allele on top is r and the allele on the left is R. Always put upper case in front, so the answer is Rr.
Same concept for other boxes, just match the alleles on the top of it, and the left side of it (the ones outside the box), and rearrange the upper/lower cases, and you'll get the correct answer.
Jellyfish are electric so when they come in contact with generators in coastal electric companies they shut down the system by absorbing all the electricity.<span />
This method produces plasticity in the cerebral cortex in normal animals.OR .<span>The results do not indicate a specific role of parietal </span>cortex<span> in attentional shifting.</span>
Hope this helps:)
