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sweet [91]
3 years ago
9

V. Long Answer Type Questions

Biology
1 answer:
madam [21]3 years ago
5 0

Answer:

a) Two reasons why polythene bags are not environment friendly are as following:

  • Plastic bags are made up of non-renewable materials such as polypropylene and their manufacturing and disposal cause greenhouse gases to release in the environment and contribute to global climate change.
  • Polythene bags or Plastic bags are non-degradable and break into small pieces in the environment which are then consumed by wildlife or run off into oceans.

b) Yes, the decision of using paper bags is correct as it will minimize the use of plastic bags and also reduce the environmental pollution caused by plastic waste. Paper bags can be reused or recycled again and again and they are easily degradable in the environment causing very less or no pollution.

c) The values associated with the ban on use of polythene bags is to establish a sustainable environment for our present and future generation. It will reduce environmental pollution and will minimize the effect of global warming.

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When a microbe that is not part of the normal biota enters the body, it is likely to first encounter which type of host defense?
olasank [31]

When a microbe that is not part of the normal biota enters the body, it is likely to first encounter first line of host defense.

The term "normal microbiota" describes the microorganisms that are present in every human's conjunctiva, oral mucosa, skin's surface and deeper layers, saliva, and gastrointestinal tracts. The host employs a number of defences to defend against infection.

Mucus, which has a variety of normal microbiota that compete with and may even destroy invasive bacteria and virae, is one of the body's first lines of defence.Once a virus or bacteria penetrates the skin and mucosa, the host may experience changes that lessen the invader's power. A fever is one instance of such a shift.

Therefore, When a microbe that is not part of the normal biota enters the body, it is likely to first encounter first line of host defense.

Learn more about first line of host defense here:

brainly.com/question/20523292

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6 0
2 years ago
How does increasing the total number of coin tosses from 10 to 100 affect deviation?
valentina_108 [34]
Because it adds more numbers to the 10
5 0
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20) The following are characteristics of cancer cells except for ____
san4es73 [151]
Cancer cells have abnormal nuclei
8 0
3 years ago
Read 2 more answers
Lab: Interdependence of Organisms<br> Assignment: Lab Report<br> Active
olchik [2.2K]

Answer:

Record your data in the table below. Be sure to record any qualitative observations in your lab notebook.  

 

Heights (cm)  

 

                                                                Week one  

                                                      (before adding worms)        week 3                 week 5  

Plant 1    10cm                        22cm                   49cm  

 

Plant 2          9cm                          23cm                    47cm  

   

 

Plant 3          8cm                          20cm                49cm  

 

Plant 4          9cm                         22cm                 50cm  

 

Plant 5         10cm                        22cm                  47cm  

 

Plant 6         8cm                          23cm                   52cm  

 

Control Group Average        9cm                           22cm                 49cm      

 

Plant 1   8cm                        24cm                50cm  

 

Plant 2        9cm                         28cm                60cm  

 

Plant 3         8cm                        26cm                 49cm  

 

Plant 4         8cm                        25cm                 53cm  

 

Plant 5         8cm                        27cm                  58cm  

 

Plant 6         7cm                        26cm                  60cm  

 

Experimental Group Average       8cm                          26cm                   55cm  

   

Difference in Average Heights  

(Experimental – Control)       -1 cm                            4cm                         6cm  

 

 

Explanation:

I got 100percent

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3 years ago
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If the haploid (half) number of a gamete (sex cell) is 12, what is the diploid (double) number?
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Ranges from 2c to 4c
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