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Mamont248 [21]
3 years ago
14

While waiting at an airport, Neil Campbell once overheard this claim: "It’s paranoid and ignorant to worry about industry or agr

iculture contaminating the environment with their chemical wastes. After all, this stuff is just made of the same atoms that were already present in our environment." Drawing on your knowledge of electron distribution, bonding, and emergent properties (see Concept 1.1), write a short essay (100–150 words) countering this argument
Biology
1 answer:
Deffense [45]3 years ago
6 0

That is right.

These substances are part and parcel of earth but the problem is that we are releasing them into the environment in new combinations that do not naturally exist .

Take the plastic bag for instance. It will eventually return to its original components but it takes a hundred years. In those hundred years it can kill thousands of animals which consume it, it promotes spreading of malaria when it accumulates rain water where mosquito eggs hatch and it looks revolting when dumped.

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In cats, the gene for Calico (multicolored) cats is an x-linked trait that is
hichkok12 [17]

Answer:

Considering the <u>whole progeny</u> (100%), there will be

  • 25% Black male kittens, XBY
  • 0% Calico Male kittens
  • 25% Calico female kittens, XBXR

Explanation:

<u>Available data:</u>

  • The gene for Calico (multicolored) cats is an x-linked trait and codominant
  • Calico Females receive a "B" and an "R" gene, and have black and orange splotches on white coats. Their genotype is XBXR.
  • Males can only be black or orange, but never calico. Their genotype is XBY and XRY

Cross: a female calico cat with a black male

Parentals)   XBXR    x    XBY

Gametes)  XB  XR       XB   Y

Punnett square)    XB        XR

                   XB   XBXB   XBXR

                    Y      XBY      XRY  

F1) Among the whole progeny:

  •     2/4 = 50%  will be black (female XBXB and male XBY)
  •     1/4  = 25% will be Calico (female XBXR)
  •     1/4  = 25% will be Orange (male XRY)  

   Among females:

  •    1/2 = 50% of females will be black, XBXB
  •    1/2 = 50% of females will be Calico, XBXR

   Among males:

  •    1/2 = 50% of males will be black, XBY
  •    1/2 = 50% of males will be orange, XRY        
7 0
3 years ago
Which statement is true for some photosynthesizing animals?
AVprozaik [17]
The answer is B to the question
4 0
3 years ago
Read 2 more answers
10 POINTS
Brrunno [24]

Answer:

450 kilocalories.

Explanation:

Since only 1/10th of the energy that an organism consumes is passed onto the next level of the pyramid, that would mean only 500/10 = 50 kilocalories are passed on, and the remaining 500 - 50 = 450 kilocalories are used up.

Hope this helped!

4 0
3 years ago
Read 2 more answers
What step of the carbon cycle occurs when soil bacteria return carbon dioxide, methane, and other carbon compounds to the atmosp
AnnyKZ [126]

i beleieve c sorry if im worng

4 0
4 years ago
Read 2 more answers
Cultural evolution and biological evolution are similar in some ways. Important distinctions between them include:
Alenkasestr [34]

Answer:

i would go with b

Explanation:

Both are based on variation, heredity and selection, but how these appear and work differ. Biological evolution is unconscious, opportunistic and not goal-directed, while cultural evolution is conscious, at best planned, and can have a goal.

8 0
3 years ago
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