The correct option is C.
Specie specific signals are those signals which are limited to only one specie of animal. The specie usually use it to communicate with the members of the specie. Each signal normally have a specific meaning and will produce uniform response in its receivers.
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.
Advantage:
Result in variation among species
Disadvantage:
Slow process
For the answer to the question above, it is FALSE
When the TMJ or Temporomandibular joint occurs. A excruciating pain can be experienced by a person who has this. In result, the muscles are contracting in response to pain. <span>So progressive muscular relaxation</span> is needed
