Answer:
1. When a rubbed ruler is brought close to the paper, salt and pepper they are not equally attracted as paper is lighter than pepper and salt, so it takes less effort for paper to overcome the force of gravity.
2. electrostatic induction is a phenomenon in which static electricity is generated in an object by bringing an electrically charged object near it. When a charged object is brought near to an uncharged body it causes electrical charges to redistribute in the body, resulting one side having excess of positive charges and other side having negative charges, as a result body become charged. Electrostatic interaction also depends upon the nature and mass of body.
b. the combination of fur cloth and rubbed ruler produce greatest effect. The reason is that when ruler is brought near to fur excess of electron will flow into fur.
Answer: The products of pyruvate metabolism are lactate, ethanol and acetyl CoA
Explanation:
Lactate: Lactate is produced by anaerobic fermentation that takes place in the skeletal muscles in humans.
Ethanol: Ethanol is produced through fermentation process yeast and bacteria.
Acetyl CoA: Aerobic Oxidation of pyruvate give rise to acetyl CoA is which the starting molecule in the citric acid cycle.
Answer:
The physicist himself
Explanation:
Replication in an experiment means to repeat an experiment as many times as possible using the same conditions. This is done to minimize error and ascertain the reliability of the experimental outcome.
An experimenter is responsible for repeating his/her experiments. According to this question, a physicist performs an experiment. The physicist himself should replicate his experiment.
Answer: The Americas
Explanation:
Scientists use DNA to track the migration of humans across the planet. After a group migrates away from their ancestral homeland, any mutations that occur are not mixed with those left in the ancestral population. Therefore, DNA samples taken from __the Americas__ would have the most unique mutations, representing the most recent population to migrate to a new area.
