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Andreas93 [3]
3 years ago
12

1. Why have PCBs been so hard to clean up in Puget Sound and connected rivers? 2. What does the area by the storm water runoff d

rain in the Pacific look like? 3. Why is storm water runoff a problem for water pollution? 4. What are the arguments against regulations aimed at reducing water pollution? 5. How does land-use contribute to water pollution? 6. The video makes the case that all of us are polluters. Do you agree or disagree with this? Why? 7. Thinking about agriscience, what impact does water pollution have (or potentially have) for agriscience and agriculture? 8. What are some ways that agriscientists can contribute to reducing water pollution?
Biology
1 answer:
Scrat [10]3 years ago
4 0

hmmm....i don't even know the answer to your question.

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Can you identify which organisms are on which trophic levels in an intertidal community?
Ulleksa [173]

Answer:

The producers-Sea weed-Perform photosynthesis.

The filter feeders- sponges, chiton-eat floating planktons.

Grazers -Snails,mussels feed on- floating planktons.

Carnivores such as sea stars feeds on snails

Explanation:

  • The producers are placed at the bottom level in energy pyramid and are prime factor in the aquatic eco system which provides energy and perform photosynthesis with the help of water,sunlight and chlorophyll.
  • The filter feeders are those that feeds upon small particles that are present in the water.
  • Grazers are those organisms that feeds on producers like phytoplanktons.
  • Carnivores are those organisms that feeds on herbivores.

6 0
3 years ago
How do researchers prepare an intron-free copy of a eukaryotic gene for use in creating transgenic bacteria?
Tcecarenko [31]

The researchers prepare an intron-free copy of the eukaryotic gene for the use in creating the transgenic bacteria by using the reverse transcriptase to make the cDNA from the mature mRNA

The structure of the eukaryotic genes. Most of the eukaryotic genes are contain the segments of the coding sequences (exons) that interrupted by the noncoding sequences (introns). Both the exons and the introns are transcribed to yield a long and primary RNA transcript.

Eukaryotic DNA is the linear, compacted into the chromosomes by the histones, and has the telomeres at each end to protect from the deterioration. The Prokaryotes contain the circular DNA in addition to the smaller, transferable DNA plasmids. Eukaryotic cells contain the mitochondrial DNA in the addition to the nuclear DNA

To know more about eukaryotic gene visit:

brainly.com/question/28297163

#SPJ4                                                                    

3 0
2 years ago
How many molecules is 9.34 moles of AgCI
adoni [48]

Answer:

Number of molecules= 9.34 * 6.022*10^23 = 5.6245*10^24 molecules.

Explanation:

3 0
3 years ago
Which of the following statements is true about the sun's layers?
murzikaleks [220]
I think D because the whole thing is gaseous and it has two atmospheric layers
8 0
3 years ago
How do humans keep plant and animals from changing due to natural<br> selection
Tems11 [23]

Answer:

Numerous examples of this human-induced contemporary evolution have been reported in a number of 'contexts', including hunting, harvesting, fishing, agriculture, medicine, climate change, pollution, eutrophication, urbanization, habitat fragmentation, biological invasions and emerging/disappearing diseases.

3 0
2 years ago
Read 2 more answers
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