One theory of early life on Earth states that the first life forms did not use oxygen for respiration and were unable to make their own food. Based on this theory, which types of organisms were most likely present?aerobic, autotrophic bacteria
aerobic, heterotrophic bacteria
anaerobic, autotrophic bacteria
anaerobic, heterotrophic bacteria
Answers
Answer:
Early organisms would have to be anaerobic, as air was likely non existent. This rules out the first two options.
Autotrophic can be called producers, and heterotrophic can be called consumers.
The question states that "did not use oxygen for respiration and were unable to make their own food"
Only one option satisfies the question:
anaerobic, heterotrophic bacteria
Answer:
Anaerobic, heterotrophic bacteria
Explanation:
i got it right on k12
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b. homozygous
c. recessive
d. dominant
Answers
It is dominant as...
The white coat alleles are recessive, meaning the black coat would most likely be dominant alleles. Assuming the black coated dog had the alleles of BB, and the white coated dog had the alleles ww, there would be a 100% chance that the offspring would have Bw alleles, where the black coat is dominant, "all the offspring were black".
B = Black, W = White
B B
w Bw Bw
w Bw Bw
The diagram above shows that the offspring would be 100% black coated.
Not sure if you wanted an explanation, but I tried.
observation, law, theory, hypothesis
observation, hypothesis, experiment, conclusion
there is no rhyme or reason to how science is done
Answers
Answers
The correct answers are sand dunes, beaches deltas.
The process of erosion creates sand dunes by the erosion of sand by the help of wind. The sand erosion or soil erosion can lead to the formation of the beaches or deltas. The erosion process cannot result in the formation of the mountains.
Mountains are as a result of volcanic eruption and is formed after the volcanic activity.
-“read” the template strand
-synthesize the daughter strand
-unzip the template strand
-cut the template strand
-cut the daughter strand
IS THE ANSWER 2-5 and not 1??
Answers
Final answer:
DNA Polymerase 'reads' the template strand and synthesizes the daughter strand during DNA replication. It does not unzip or cut the template or daughter strands.
Explanation:
DNA Polymerase has specific functions during DNA replication, a process that occurs prior to cell division. Out of the given options, DNA Polymerase is responsible for two actions:
- "Read" the template strand: DNA Polymerase 'reads' the DNA sequence in the 3'-to-5' direction and synthesizes the new DNA strand in the 5'-to-3' direction.
- Synthesize the daughter strand: DNA Polymerase helps in the synthesis of the new DNA strand (known as the daughter strand) by adding nucleotides to the 3' end of the growing DNA chain.
However, DNA Polymerase does not 'unzip' the template strand, this is the job of another enzyme called DNA helicase. Likewise, DNA Polymerase does not cut the template or the daughter strand. Thus, answers 3, 4, and 5 are incorrect.
Learn more about DNA Polymerase here:
#SPJ6
Answers
Answer:
The potential energy is 50 joules, 75 joules and 100 joules
Explanation:
Potential energy is the energy stored in an object by virtue of its position relative to others objects. For example a heavy ball placed at an elevated position.
The potential energy is given as:
Where is the potential energy of the object, m is the mass of the object, h is the height in which the object is placed and g is the acceleration due to gravity.
For 1.0 meters:
m = 5.0 kg g = 10 m/s² h = 1 meters
The potential energy is 50 joules
For 1.5 meters:
m = 5.0 kg g = 10 m/s² h = 1.5 meters
The potential energy is 75 joules
For 2.0 meters:
m = 5.0 kg g = 10 m/s² h = 2 meters
The potential energy is 100 joules