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s2008m [1.1K]
3 years ago
10

Mercury is often released into water bodies with industrial effluents, where it is then converted to the compound form methylmer

cury. Methylmercury is easily absorbed by aquatic organisms.
Research suggests that the presence of mercury seriously decreases the reproductive rate of fish-eating birds, like heron, and causes other notable harmful effects. On the other hand, the small fish on which the herons prey are not significantly affected.

Explain why the toxic effects of mercury is significant in herons, but not in the fish they eat.
Chemistry
1 answer:
sergeinik [125]3 years ago
7 0
 This is more to do with Bioaccumulation of mercury, where the mercury is absorbed into the issue of animals, and so animals higher in the food chain consume a lot of tissue matter hence increasing mercury content in their system.
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Having dimples is a dominant trait represented by the allele "D". If Carlos has dimples, which of the following could represent
Zigmanuir [339]

Answer:

DD or Dd

Explanation:

Having dimples is the dominant trait which means if he is heterozygous, the dominant trait will still show. So it can be homozygous dominant or heterozygous.

7 0
3 years ago
Read 2 more answers
If the calcium oxide were to be obtained by the heating of calcium hydroxide, how much hydroxide would be needed to obtain the 1
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Ca(OH)2 -------> CaO + H2O
ratio is 1 : 1
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Ca(OH)2 Mr= 74g
0.268x74= 19.83g (required amount of Cash(OH)2)




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3 years ago
a ceiling fan's blades collect dust faster than other objects in a room. the constant pushing and rubbing against the air provid
Black_prince [1.1K]

As the blades rotate, they experience frictional forces as they `rub' against the air; this knocks electrons around, causing the blades to build up a net charge. The charged dust particles then stick to the charged areas of the blades. "The leading edge of the blades usually develops the thickest layer of dust.

8 0
3 years ago
What are some examples of how electrolysis is used in scientific research ?
charle [14.2K]

Answer:

Explanation: Perhaps the most familiar example of electrolysis is the decomposition (breakdown) of water into hydrogen and oxygen by means of an electric current. The same process can be used to decompose compounds other than water. Sodium, chlorine, magnesium, and aluminum are four elements produced commercially by electrolysis.

6 0
2 years ago
The following are electronegativity. What value should be where the M is?0.981.57M2.553.043.443.98No data
ipn [44]

Answer 2.04

Explanation

Electronegativity decreases down the group and increases across the period in the periodic table.

In the period two of the periodic table,we have the following values for electronegativities with respect to its elements.

Li...........0.98

Be.........1.57

B..........2.04

C.........2.55

N..........3.04

O...........3.44

F...........3.98

Ne........n.a

The value that should be where M is is 2.04

6 0
1 year ago
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