Answer:
4. Infrared Light 5. Ultra-Violet Light 6. ...damage...sunburn.
Explanation:
Looking at a Electromagnetic Spectrum will tell you the the visible and non visible. Hope this helps!
Answer:
Heterozygosity
Explanation:
The correct term that could explain the phenomenon is heterozygosity.
<u>In heterozygous condition, a gene is made up of two different alleles in which one would be dominant and the other would be recessive. </u>
<em>In heterozygous purple plants in which the alternate color is white, the white color is not expressed because its allele is in a recessive state. If two heterozygous plants are mated, the recessive allele in each plant would combine into some of the offspring, resulting in the production of white color progeny in addition to the dominant purple color progeny.</em>
Let us assume that the purple color allele is P and the white color is p.
Pp x Pp
PP Pp Pp pp
PP and Pp - purple color
pp - white color.
<span>CCA stands for chromated copper arsenic. CCA is a wood preservative, which is in use since 1930. copper is the protective structure and arsenic is the insecticide used. Arsenic serves no purpose in protecting the timber, but it is the binding agent of other 2 chemcals.
The best argument in terms of science would be , not to remove CCA- treated wood from the existing building structure. this wood preservative was banned due pressure from common and not scientific reason. The concern was on arsenic exposure. The exposure level of arsenic from the treated wood is far below fatal levels , than it could be seen in diet and drinking water. Hence doesn't harm children. A research also shows that after 45 years of treatment the exposure level is almost nil. Hence it is safe to have a CCA treated woods at home.</span>
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