Answer:
the Echinoderms.
Explanation:
Examples of echinoderms: starfish, sea urchin, feather stars and sea cucumbers.
The monomers<span> of these organic groups are:</span>Carbohydrates...<span>monosaccharides. Lipids...glycogen and fatty acids...Nucleic acids...nucleotides.
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Answer:
reversed peristaltic action of the intestines, by which their contents are carried upward.
Explanation:
An autotroph is an organism that is able to form nutritional organic substances from simple inorganic substances such as carbon dioxide.
Answer: B. Earth's present-day species evolved from older, identical species.
The evolution is the change or modification in the characteristics of a species over genration due to the process of adaptation and natural selection. The statement "Earth's present day species evolved from older, identical species is true about evolution". As, proposed by Darwin evolution is "descent with modification", which means that in a process of evolution species change and give rise to new species over generation. He proposed that newly evolved life forms can be traced back to their common ancestor.
