What is the main concern with persistent organic pollutants (POPs)?

Biology

2 answers:

ira [324]2 years ago

7 0

Answer:

d.) They can be concentrated in an organism's fatty tissue.

Explanation:

Other reasons:

They have a carbon-based molecular structure, containing highly reactive chlorine

Most are manufactured by humans

They are persistent in environment, they do not easily break it down

Polluting and toxic

They occur in forms that allow them to be transported by wind, water, and sediments for long distances.

Marat540 [252]2 years ago

5 0

d. They can be concentrated in an organism’s fat tissues.

This is referred to as biomagnification -- the POPs become more concentrated as they move from one animal to another. This is a main concern because even trace amounts, in animals at the bottom of the food chain, can cause toxicity to animals at the top of the food chain.

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Summarize what the researchers did to improve the quality of post mining site soil

Salsk061 [2.6K]

Answer:

The researcher centred on the potential uses of biochar, charcoal primarily used for agricultural and to improve the quality of post mining sites.

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A mating of two people of medium height (where three genes control height): AaBbCc x AaBbCc produce _____ distinct phenotypes de

Ede4ka [16]

Answer:

A mating of two people of medium height (where three genes control height): AaBbCc x AaBbCc produce Seven distinct phenotypes determined by the number of genes inherited.

Option: (D)

Explanation:

Traits are the characters that we observe. When the parents AaBbCc and AaBbCc are crossed then AABBCC and aabbcc are two different dominant and recessive genomes seen in the offspring.

Offspring with AABBCC will be height whereas aabbcc will be dwarf. There will be offspring with different heights depending upon the dominant and recessive gene present in them.

Another genome produced are AABBCc/AaBBCC/AABbCC, next will have four dominant and 2 recessive, next will have 3 dominant and 3 recessive AaBbCc, next will have 2 dominant and 4 recessive, one dominant and five recessive. All together offspring produced will be 64