Answer:
Ampulla is located at the end.
Explanation:
Tube feet (podia) are supported by a hydraulic and connective-tissue skeleton under the control of antagonistic muscle pairs systems.
Its B because Arteries deliver oxygenated blood to the capillaries, where the exchange of oxygen and carbon dioxide takes place.<span>
</span>
<h2>
Answer:</h2>
Option A. Bacteria.
<h2>
Explanation:</h2>
- It is presumed that, over millions of years of evolution, abiotic molecules evolved into the self-replicating molecules by means of natural selection.
- Cyanobacteria, or blue-green algae is a bacteria which was one of the oldest fossils found on earth. These microbes conduct photosynthesis: using sun light, water and carbon dioxide to produce carbohydrates and oxygen.
- Cynobacteria played a major role in forming oxygenated atmosphere.
- The first living things on the planet Earths was single-celled micro-organisms which lack a well defined cell nucleus were known as prokaryotes, and bacteria belongs to prokaryotes ans hence among given options bacteria matches the most for the first life form on earth.
Result: Among the given choices bacteria was most similar to first living things on earth.
Ur answer is 70 %, please make this the brainliest