Answer:
d) sedimentary, metamorphic and igneous
Answer:
D. DDT
Explanation:
DDT is highly persistent in the environment means that it break down very slowly in the environment. The half-life for DDT is from 2 to 15 years. Half-life is the time needed for the degradation of half of the compound. Persistent bio-accumulative toxic substances (PBTs) are chemicals that break down slowly in the environment and its accumulation in living organisms are toxic. Some PBTs are dispersed through air currents while some uses other environmental pathways, resulting in contamination of regions far from their points of origin.
Answer:
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Explanation:
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Answer:
a) During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate.
I believe the answer is <span> 9:3:3:1 ratio with 9 polka dot tails and long eyelashes, 3 polka dot tails and short eyelashes, 3 solid tails and long eyelashes and 1 short tail short eyelash! Good Luck in this biology thing your doing :)</span>