<span>Factors that can increase mutation rates are high and low temperatures, food additives, and UV rays. All of these answers are correct. Mutation rates in genes vary depending on many environmental effects. UV rays, along with varying temperatures, can cause mutations during cell division due to the damage they impart on the cells that are dividing. Dangerous food additives are believed to cause mutations, as seen in animal studies (ie. aspartame causing cancer in rats).</span>
The work done is 137 joules.
Lifting opposes the acceleration of gravity, which is 9.8 m/sec/sec.
20 x 0.7 x 9.8 = 137 J (kg-m2/sec2)
Traits that have 3 or more phenotypes may be the result of MULTIPLE alleles, I believe. Hope that helps!
Answer:
Having a cell membrane ,with pores; that regulates substances entering and leaving the cells;
cytoplasm;contains sugar and salts for maintaining it's osmotic pressure; also has a liquid medium; for all biochemical reactions;
having nucleus; contains chromosomes having heridetary material; and controls all activities of the cells.
