In eukaryotic cells the DNA can be found in the nucleus mainly. so DNA replication takes place in the nucleus during the S phase of the cell cycle.
Also in eukaryotic cells there are mitochondria and chloroplasts (plants) and these have circular DNA and they also get replicated (according to their own mechanism).
Prokaryotic cells don't contain a nucleus. They do not contain DNA in the cytoplasm and thus the DNA replication will take place here.
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The correct answer is d. 3.5 billion years.
Prokaryotes were the first forms of life on Earth long before simple multicellular life appeared because of their ability to withstand extreme conditions. It is believed that the first living forms were bacteria combined with archaea in the microbial mat (multi-layered sheet).
Answer:
Explanation: Trophic level, also called feeding level, is defined as the feeding level or each stage in a food chain or food web. In other words, trophic level is the number of links by which food energy is transferred from producers to final consumers. For example, in a food chain like the one below, we can have these levels.
The temperature of the food be checked as soon as they are received from
the delivery person. This should be done with the aid of a thermometer.
<h3>Food Storage conditions.</h3>
Food is a very important part of our daily life and special care must be taken
to ensure that they are properly stored under the right conditions to inhibit
the growth of microorganisms.
Food not properly stored under the right temperature favors growth of
microbes. This thereby causes food poisoning and other serious conditions
when eaten.
Read more about Food preservation here brainly.com/question/19293397
Rubber factories, smoking cigarettes, and cars.
