I believe this adaptation of the blue poppies to their environment is due to directional selection. Directional selection refers to the mode of natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of the favored phenotype. In our case the plants with the thickest leaves were favored as they were more adaptable and in the end there was a shift to this characteristic by other plants.
Am amniotic egg is first developed in the reptiles.
The membrane and shell make a protective membrane that can provide a safe environment for the cells to divide, and embryo to develop. Animals having an amniotic shell are called as amniotes. The other body parts develop later on.
How ARE drilling sampleS evidence of sea floor spreading? different species of rocks are each tube layer
The correct answer is option b, that is, circadian rhythms.
A roughly 24-hour cycle in the physiological procedures of living beings, comprising animals, plants, fungi, and cyanobacteria is known as a circadian rhythm. In a strict sense, circadian rhythms are produced endogenously, however, they can be modulated by external cues like temperature and sunlight.
The circadian rhythms can affect the release of the hormone, sleep-wake cycles, digestion and eating habits, the temperature of the body, and other essential functions of the body.
A method by which you could separate mRNA from the other types of RNA in a eukaryotic cell is oligo (dT) chromatography.
<h3>What do you mean by mRNA?</h3>
mRNA may be defined as a molecule in cells that holds codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm.
The mRNA can be easily isolated from other types of RNA by the most reliable and convincing method of oligo (dT) chromatography which is the magnetic separation method that bounds oligo (dT) molecules on the surface of paramagnetic beads.
Therefore, a method by which you could separate mRNA from the other types of RNA in a eukaryotic cell is oligo (dT) chromatography.
To learn more about mRNA, refer to the link:
brainly.com/question/884041
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