Answer:
true
Explanation:
Sediment is deposited in flat, horizontal layers with the oldest layers on the bottom and the younger layers laying on and over the older layers.
The process likely to be occurring in the plant's roots will be nitrogen fixation.
<h3>What is nitrogen fixation?</h3>
It is a process whereby atmospheric nitrogen is converted to usable forms of nitrogen in the soil.
Nitrogen fixation takes place in the root nodules of leguminous plants in association with some symbiotic bacteria.
Thus, the only process that could be happening in the plant's root is nitrogen fixation.
More on nitrogen fixation can be found here: brainly.com/question/19938608
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The reactants of cellular respiration are the products of photosynthesis and vice versa (the products of cellular respiration are the reactants of photosynthesis). Basically, their equations are flipped.
Answer:
C. 3, 2, 1
Explanation:
During a single PCR cycle, the very first step is the heat separation of the double stranded DNA. Primer binds only single stranded DNA/RNA because it has complimentary bases which match single strand of DNA/RNA that is why it is necessary to unwind both the strands of DNA by providing temperature.
As soon as the DNA strands have separated by increasing the temperature to ~ 95 °C, in the next step the primer binds the portion of DNA which is complimentary to the bases of the primer. In order for primer to bind DNA, the temperature is lowered to ~ 72 °C and the process is called as annealing.
Once primer has bound to the DNA, the next step is polymerization i.e. nucleotides which are the monomer units of DNA are added one by one with the help of enzyme named as Taq polymerase. This is how the strand extends ahead of primer and exact copies of the given DNA are produced.
Note: PCR may be considered as in vitro DNA synthesis or replication.
