C. Flagella
Flagella help cells “crawl” using extensions of the cytoplasm
Case studies do not allow for replication. So, the correct option is (b).
Case studies are investigations that compile in-depth information about a person or group. They employ a wide range of research techniques, including observations, interviews, case studies, and personality tests, to collect the data. They can frequently collect both qualitative and quantitative data thanks to this. Research can be cross-sectional or longitudinal, which lasts for a long time.
It enables a researcher to thoroughly explore a subject. Case studies are unreliable because they cannot be duplicated and hence cannot be reliability tested. Any data acquired cannot be used to make generalisations because the outcomes are specific to the time, event, setting, and individual.
Learn more about Case studies here;
brainly.com/question/23179641
#SPJ9
Answer:
A biochip or DNA chip or DNA microarray is a slide that contains the different fragments of DNA . The DNA microarray technique is used to study the expression level of various genes simultaneously. For this the researcher:
A. Attach the fragments of DNA about 500 to 5,000 bp that are produced by the controlled growth of the nucleotides by providing the narrow beam of light and synthesised by the PCR technique on to the slide in the form of dots or spots.
B. In dots, the reporter oligos or probes are attached which are used to hybridize the cDNA to the microarray. The cDNA is labeled with the fluorescent molecules called fluorophore.
C. After hybridization, the probe-target hybridization is detected by placing the washed array in the confocal fluorescence microscope which observes the pixel and helps calculate the fluorescence intensity.
Answer:
Vertebrates and invertebrates
herbivores and carnivores
idk pick one
Explanation:
Lack of concern for the cost to Ecosphere.