Which of the following describes the role of science in society? Science is the greatest collective endeavor. In other words, science is one of the most important channels of knowledge. It has a specific role, as well as a variety of functions for the benefit of our society: creating new knowledge, improving education, and increasing […]
Is it possible to have your entire genome mapped?
Is it possible to have your entire genome mapped? Whole genome sequencing is available to anyone. Although the technical conditions, the time and the cost of sequencing genomes were reduced by a factor of 1 million in less than 10 years, the revolution lags behind. Before you start worrying, I can assure you: it will […]
How do you randomly select participants?
How do you randomly select participants? Simple random sampling is a type of probability sampling in which the researcher randomly selects a subset of participants from a population. Each member of the population has an equal chance of being selected. Data is then collected from as large a percentage as possible of this random subset. […]
How can we find out near which end is North Pole located in a bar magnet?
How can we find out near which end is North Pole located in a bar magnet? Answer. Location of the poles of as magnet can be determined by suspending it freely. A freely suspended bar magnet always points in north−south direction. The end that points towards north direction is the north pole of the magnet […]
Why do you think groundwater investigation is important?
Why do you think groundwater investigation is important? The viability of groundwater sources and exploitation methods depend on the water quality. Therefore, investigation of groundwater quality and result assessment and interpretation are very important in deciding management policy. What is groundwater monitoring? Typical groundwater monitoring wells are used to enhance environmental protection at landfills. WM […]
Do plants and animals have a rough ER?
Do plants and animals have a rough ER? Endoplasmic reticulum is an organelle found in both eukaryotic animal and plant cells. It often appears as two interconnected sub-compartments, namely rough ER and smooth ER. Both types consist of membrane enclosed, interconnected flattened tubes. What is the function of RER and SER? Difference between Smooth and […]
What is the least complex level of organization of the human body?
What is the least complex level of organization of the human body? Summarizing: The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism. What is the lowest level of organization in the nervous system? Cells are the […]
Why are all bubbles round?
Why are all bubbles round? Bubbles are round because there is equal pressure all around the outside of the bubble. The perfectly round shape that most bubbles have is called a sphere. Are bubbles always circular? Scientists refer to bubbles as “minimal surface structures.” This means that they always hold the gas or liquid inside […]
How old is the oldest evidence of life on Earth?
How old is the oldest evidence of life on Earth? about 3.7 billion years Why did Theia crash into Earth? Theia was eventually perturbed away from that relationship by the gravitational influence of Jupiter and/or Venus, resulting in a collision between Theia and Earth. Computer simulations suggest that Theia was traveling no faster than 4 […]
Is nuclear binding energy positive or negative?
Is nuclear binding energy positive or negative? Nuclear binding energy is the energy required to split a nucleus of an atom into its component parts: protons and neutrons, or, collectively, the nucleons. The binding energy of nuclei is always a positive number, since all nuclei require net energy to separate them into individual protons and […]