I guess its DNA. DNA is the information code of the cell
Answer:
Homo erectus
Explanation:
Homo erectus is believed to be the first creature walk erect and possibly be the first hominin
Answer:
<em>The evidence that suggests RNA appeared before DNA is the fact that RNA can act as an enzyme to self-edit their own genetic code. </em>Moreover, it has the ability to store genetic information, while transfer and ribosomal RNA have the ability to translate genetic information into proteins.
Explanation:
RNA has a great capability as a genetic molecule, it once had to carry on hereditary process on its own. It is absolutely sure that RNA was the first molecule of heredity. However, a single stranded RNA is rather unstable and easily damaged by enzymes. By essentially multiplying the existing RNA molecule, and using deoxyribose sugar instead of ribose.
<em>The DNA evolved as a much more stable form to pass genetic information with accuracy. It shows a biological evolutionary purpose .</em>
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Answer:
~What is the difference between primary and secondary consumers in a food chain?
~How does energy flow through the food chain?
~What's the most important part of the food web/chain?
~What role does a consumer play in a food chain?
~What is a decomposer and how does it play a part in the food chain/web?
~What does the food chain always start with?
~What is the difference between a food chain and a food web?
~What kind of question could you answer with a food web?
~What kind of question could you answer with a food chain?
~What is a secondary consumer, and why is it labled
as a secondary consumer?
Explanation:
Hope this helps!
Answer:cacti
Explanation:
In an ecosystem,the ultimate source of energy is the sun. Plants take up this energy from the sun to produce food. Animals eats up plants and when they die ,they decompose. This continuing process leads to the transfer of energy from one trophic level to another in the ecosystem.
Plants ,algae and some bacteria are the primary producers in the ecosystem.they are able to make their own food and support the entire living system. They extract inorganic nutrients and energy from the environment, in order to make their food. Animals(herbivores) eats up the plants and other animals(carnivores) eat up such animals. This situation sets up a chain of flow of energy from the producer to the consumer and back to the environment.
