Respuesta :
Answer:
- the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.
- The hypothesis sets the stage for the experiment because the entire experiment is based on your hypothesis. The hypothesis is your educated guess what will result from the experiment.
- In scientific reasoning, a hypothesis is constructed before any applicable research has been done. A theory, on the other hand, is supported by evidence: it's a principle formed as an attempt to explain things that have already been substantiated by data.
- Curiosity motivate a scientist to attempt to learn what is not known. Skepticism allows a scientist to narrow his/her search to things that have some probability of producing result. And, to reject explanations that are not supported by perceptual evidence, or at least logic and reason.
- Peer review helps scientists do their job better by giving them feedback from others. It also helps control the quality of scientific research and publications. But even in professional scientific communities, peer review does not always work perfectly. Sometimes, great research proposals or publications are turned down because they are too creative or way ahead of current scientific thought.
- Science is related to its context in society because the processes the occur in both regions depend on the other.
- Scientists and engineers actively seek evidence to test their ideas — even if the test is difficult. The reason behind is the importance of asking questions based on observations to find more information about the natural effects and proposals. From there, it is ought to determine expected results based on testing, evidence resulting from that experiment will allow testers to find out the solution they are looking for.
- All living things breathe, eat, grow, move, reproduce and have senses. Non-living things do not eat, grow, breathe, move and reproduce. They do not have senses.
9. crosscutting concepts unite the study of biology by comparing and contrasting patterns; cause and effect; scale, proportion,and quantity; systems and systemmodels; energy and matter; structure and function; and stability and change.
10. The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.
11. The treatment group (also called the experimental group) receives the treatment whose effect the researcher is interested in.
The control group receives either no treatment, a standard treatment whose effect is already known, or a placebo (a fake treatment).
12. An atom is composed of three major subatomic particles: protons, neutrons, and electrons. ... Electrons have a negative charge. The mass of a proton and neutron are approximately the same. Electrons have a significantly smaller mass compared to protons and neutrons (the mass of an electron is 1/1840 of a proton's mass).
13. Because each isotope of the element HAS THE SAME NUMBER OF ELECTRONS.
explanation:-
To a first approximation, the chemistry of an element depends on the exchange and sharing of electrons between atoms to make and break strong chemical bonds.
While isotopes has different numbers of neutrons, massive, neutrally charged, nuclear particles, they have the same number of protons, massive, positively charged, nuclear particles. And the neutral atom has therefore the SAME number of electrons, as the isotopes of a given element. And if there is the same number of electrons, the chemistry of that element is essentially the same.
Is this clear?
Just to add that the substitution of
1H by 2H
can introduce some change in the rate of chemical reaction. Look up the
kinetic isotope effect...
