The answer is D. Chordata.
There are three domains of life - Archaea, Bacteria, and
Eukarya. All organisms that belong to the domains Archaea or
Bacteria have cell walls. In the domain Eukarya, there are some groups
that have cell walls and others that do not.
Chordata is phylum of the kingdom Animalia which belongs to the domain Eukarya. So, Chordata cannot be a domain.
First, we have C6. The C represents Carbon, and there are six atoms present. Next, we have H12. The H represents Hydrogen, and there are twelve atoms present. Finally, we have O6. The O represents Oxygen, and there are six atoms present.
Combined, these atoms make our lovely glucose, a form of sugar that plant produce in the process of photosynthesis.
FYI most of this information can be found on the lovely search engine called Google. ;)
The chromosomes are in their condensed, highly coiled form, where they can easily fall without overlapping and staining will show a banding pattern.
Answer:
The starfish is ecosystem balancer
Explanation: