Answer: A would be the correct answer. Making observations would include scientists exploring the world around them
Explanation:
Epigenetic changes are those which do not involve alterations in the DNA sequence. These are caused due to interaction of the genome with the environment.
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When are alterations epigenetic?</h3>
- Epigenetic modifications or tags include DNA methylation and histone modification.
- These changes alter DNA accessibility and chromatin structure thus regulating gene expression.
- These are the reversible, heritable changes which do not change your DNA sequence, but they can change how your body reads a DNA sequence.
- These are necessary for the normal development of organisms.
- Stable, long-term epigenetic modifications involve DNA methylation.
- Flexible, short-term changes involve histone modifications, such as methylation and acetylation.
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None of the above.
Erosion is more likely to increase when the amount of vegetation decreases. The potential for soil erosion increases if the soil has no or very little vegetative cover of plants.
Plants and their residue form a cover that protects the soil from direct raindrop impact and splash, tending to slow down movement of runoff water and allows excess surface water to infiltrate, preventing erosion by water.
Plants root systems tend also to anchor top soil in place such that it is firm and cannot be easily blown away by wind thus preventing erosion by wind.
Answer:
because there is no force acting in the comet making it able to go on forever without change in its path or speed
explanation
newton's first law
Answer:
Explanation:
The perception of cold begins when nerves in the skin send impulses to the brain about skin temperature. These impulses respond not only to the temperature of the skin, but also to the rate of change in skin temperature. Nervous impulses sent to muscles generate extra metabolic heat through shivering.
