Answer:
Based on their body <u>structure</u><u>,</u> flatworms and rotifers were not thought to be closely related. However, <u>bilateral symmetry and body texture</u><u> </u>showed that they are a <u>soft-bodied</u> group.
Explanation:
- Flatworm belongs to phylum Platyhelminthes and Rotifera belongs to phylum Rotifera.
- Their body structure may be different but both of them have a bilaterally symmetrical body.
- Both are aquatic animals.
- Flatworm is made up of ectoderm endoderm and mesoderm and has circular and longitudinal muscles. Rotifera is made up of skeletal and visceral muscles. So, they are soft-bodied animals.
It could be considered living only if it has some of the other characteristics of life...
Such as: obtaining energy, metabolism, excretion of wastes, move or respond to environment (stimuli), reproduction or binary fission, evolution
I know the strands are DNA , but the answer is duplication because it adds one or a pair of chromosomes. i hope i helped u :) and plzz may i have brainliest ?
The mammalian<span> Y chromosome is a crucial factor for </span>determining sex<span> in </span><span>mammals</span>