Answer:
Barbed wire was invented and patented by Joseph Glidden in 1874 and had a major impact on the cattle industry of the Western U.S. Accustomed
Explanation:
Answer:
P generation: 1 purple flower (AA) : 1 white flower (aa)
F1 generation: 4 purple flowers (Aa) : 0 white flowers
F2 generation: 3 purple flowers (AA, Aa) : 1 white flower
Explanation:
Assuming the parents are AA and aa, the allele for white flowers is recessive, so there needs to be two of them for the trait to be expressed. Thus, the capital A purple allele that the other parent contributes will mask that white allele and all the flowers will appear purple. However, all of the offspring are Aa now, so when they are crossed, there's a 25% chance that they'll both contribute the lowercase a allele that codes for white flowers. Remember that if both of them give the lowercase a allele then the offspring will be aa and appear white.
D specialised cells are formed
Answer:
this is just an example: 1. ask friend to borrow keys to get something from car. 2. ask to borrow car itself to take thing home. 3. explain it's going to take a while to drive car home and back so might as well just borrow car for the night.
Explanation:
foot in the door phenomenon is asking for something small and gradually building up to a larger request. most people are hesitant if you ask for something big right off the bat, but are more likely to accept bigger requests if they've accepted a smaller request and are eased into the larger one.
