The scientist most likely found an RNA molecule. The RNA is a single-stranded molecule composed of many nucleotides.
The ribonucleic acid (RNA) is a single-stranded molecule composed of a long chain of consecutive nucleotides.
In RNA, there are four types of nucleotides, each containing one different nitrogenous base, i.e., Adenine, Uracil, Guanine and Cytosine.
In RNA, Uracil nitrogenous bases replace Thymine bases observed in the DNA molecule.
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Answer:
Angle of light source
Explanation:
Independent variable is the variable that the experimenter changes or manipulates in an experiment in order to bring about a measurable response, which is the dependent variable.
In this question, a student wants to investigate the effects of phototropism in bean plants. She places a light source directly above one plant, at a forty-five degree angle to another, and at a ninety-degree angle from the third. This shows that the variable being manipulated (independent variable) is the ANGLE OF THE LIGHT SOURCE.
I think it's convection currents or conduction or global warming
The answer is the endogenous opiate.
The human body naturally produces its own opiates like substances and uses them as neurotransmitters. These substances include endorphins, enkephalins, and dynorphin, often collectively known as endogenous opioids. Endogenous opioids modulate our reactions to painful stimuli.
The parcelization and urbanization of forests bring with them serious consequences for nature and humans beings, although we probably see it as an advance; deforestation, logging, burning, seriously affect the vegetation, and the fauna of a forest, the human workforce , the deviation of rivers and the modification of natural zones seem to be a development of society, but in the long run it affects more to humans than to nature itself, because we are the ones who will not have natural lungs to breathe, and those who soon will be drowned with our own pollution, because there are no forests, no nature to purify the air we need.
