Answer:
Division of these two groups occurred after the protostome developmental sequence appeared
An animal that relies on a digestive tract for digestion breaks down food by "b) extracellular digestion <span>only" since digestion happens at all levels of the organism. </span>
<span>In dna fingerprinting, the dna probe that is used is complementary to the dna sequence of the repeats.
Hope this helps :)</span>
A Germ cell aka sex cell mutation can cause down syndrome when theres an extra chromosome d is a mutation caused by inserting or deletion of a nucliotide
1. is c
2. is d
