Answer:
The scientific method <em>involves testing observations to derive a working hypothesis.</em>
Explanation:
The scientific method is a research method used to produce knowledge. It consists of systematic observations, measures, experimentation, analysis, and verification of a hypothesis. It is based on two aspects: reproducibility (the capability of reproducing the experiment in any other place by any researcher) and refutability (susceptibility to be refused).
There are different steps to follow in a scientific method:
- Definition and problem statement. The question for which there is not an answer yet.
- Data collection and analysis. This step involves testing the observations.
- Verification of hypothesis. This step involves the deriving of the working hypothesis.
- Conclusions and Discussion.
Both anaerobic respiration (fermentation) and aerobic respiration are processes that yeast can do.
yeast:
- Much more ATP is produced during aerobic respiration, however there is a chance of becoming oxygen poisonous. Less energy-efficient anaerobic respiration enables life in anoxic environments. Muscle function inside the human body depends on both aerobic and anaerobic respiration.
- Yeast can carry out both anaerobic respiration (fermentation) and aerobic respiration. Both produces carbon dioxide , fermentation produces a much lower amount of ATP.
- Chemical equation of Anaerobic respiration or fermentation:-
( heat)
- Chemical equation of Aerobic respiration :-
ATP
- Yeasts are unicellular creatures that descended from multicellular ancestors; yet, certain species have the capacity to acquire multicellular traits by generating pseudo hyphae or fake hyphae, which are networks of connected budding cells.
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The flow of energy in an aquatic ecosystem phytoplankton → zooplankton → fish → mammal.
<h3>What does the bottom-up model?</h3>
The bottom-up effect means that a lower trophic level in the biological network affects the community structure of higher trophic levels by means of resource restriction.
whereas the top-down effect refers to a higher trophic level that influences the community structure of a lower trophic level through predation.
Thus, opotion "B" is correct.
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The amino acids coded triplets in the 3' to 5' strand on the normalp53 gene of chromosome 13 are lysine, leucine, Glutamine, stop codons.
Explanation:
mRNA is formed by the transcription of DNA strand coding for a gene.
Any mutation in the DNA sequence even a difference of base pair would cause formation of different amino acids and hence altered protein.
The amino acid is formed in the step of translation where codes are read by tRNA on the mRNA strand and correct nucleotide is brought to growing polypeptide chain.
In transcription 3' to 5' strand acts a template strand. The amino acids on the p53 gene of chromosome 17 is
3'TTT AAC GTC ATC 5' Gene sequence
5' AAA UUG CAG UAG 3' mRNA
lysine, leucine, Glutamine, stop