Answer:
Genetic evidence like difference in ribosomal sequence.
Explanation:
Earlier archaea were considered in bacteria because of their similar appearance with bacteria. Other than similar appearance they also show other similarities with bacteria like lack of nucleus and membrane-bound organelle, presence of single chromosome, mode of reproduction, etc.
Carl Woese was the scientist who discovered archaea and made a separate domain for archaea. After the sequencing archaeal genome, he found that the gene sequence like rRNA sequence of archaea is not similar to bacteria and eukarya. So by genetic evidence, he divided prokaryotes into two domain bacteria and archaea.
Sterol and stanol esters, also go by the name - phytosterols and help lower blood cholesterol level or LDL cholesterol. LDL is also called bad cholesterol.
Answer:
Independent variable: Type of battery
Dependent variable: Time the clock stopped
Control: None for this experiment
Constants: Same type of clock
Explanation:
Independent variable in an experiment refers to the variable which the experimenter changes or manipulates in order to bring about a measurable response. In this case, the independent variable is the TYPE OF BATTERY USED.
Dependent variable is the variable that responds to changes made to the independent variable. It is the measured variable in an experiment. In this case, the dependent variable is the TIME THE CLOCK STOPPED FOR EACH BATTERY
Control is the group that does not receive the experimental treatment. In this case, NO control group is USED.
Constant is the variable that the experimenter keeps unchanged throughout the experiment for all groups. The constant in this experiment is the CLOCK USED.
Expositions usually go into great depth and detail about a certain subject and can provide more information than just a casual reading about a topic. They are essential for any expert.
