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11111nata11111 [884]
3 years ago
11

What is one of the three social science principles of sustainability? a. A dependence on solar energy b. A focus on chemical cyc

ling c. The degradation of natural capital d. A responsibility to future generations e. The ability to retain biodiversity
Biology
1 answer:
Lostsunrise [7]3 years ago
5 0

The correct answer is option B, A focus on chemical cycling

The five major principles of sustainability  are as follows:

a) Biodiversity  

b) Chemical Cycling  

c) Reliance on solar energy

d) nutrient recycling,  

e) Population control to reduce damage to the environment

The major goal of these principles is  to maintain a cohesive environment to produce a well-functioning alignment between societies, economy and individual and also save the resources for coming generations after fulfilling the need of present generation by planning an effective resource utilization map thereby disturbing the natural cycles "the least".

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3. which animal is the carnivore or secondary consumer
Y_Kistochka [10]

Answer:

it is the fox. b.

Explanation:

4 0
3 years ago
Two autosomal genes, J and K, are 60 map units apart. You perform the following testcross: J K / j k x j k / j k. At what freque
Dmitry [639]

Answer:

  • J K / j k = 20%
  • j k / j k = 20%
  • J k / j k = 30%
  • j K / j k = 30%                

Explanation:

To calculate the recombination frequency, we have to know that 1% of recombinations = 1 map unit = 1cm. And that the maximum recombination frequency is always 50%.

The map unit is the distance between the pair of genes for which every 100 meiotic products, one of them results in a recombinant one.

So, en the exposed example:

  • J and K are autosomal genes
  • J and K are separated by 60 M.U.
  • 60 M.U. means that there is 60% of recombination.

Cross)             J K / j k                    x                  j k / j k

Gametes) JK  Parental                                     jk, jk, jk, jk

                jk   Parental                                  

                Jk   Recombinant                          

                 jK   Recombinant

One map unit equals 1% of recombination frequency. This means that every 100 meiotic products, one of them is a recombinant one.

1 M.U. -------------- 1% recombination

60 M.U. ------------ 60% recombination

                              30% Jk  +  30% jK

100 M.U. - 60 M.U. = 40 M.U.

40M.U.--------------40 % Parental (Not recombinant)

                            20% JK   +   20% jk

Punnet Square)           JK       jk      Jk      jK

                          jk     JK/jk   jk/jk   Jk/jk   jK/jk

J K / j k = 20%

j k / j k = 20%

J k / j k = 30%

j K / j k = 30%                                

3 0
3 years ago
Question 1 (1 point)
My name is Ann [436]

Answer:

X: Positive gravitropism

Y: Negative gravitropism

Explanation:

i just did the quiz and got it correct

7 0
4 years ago
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From a classification standpoint, which of these organisms shares the LEAST similarities with humans?
vampirchik [111]

Answer:

a

Explanation:

4 0
2 years ago
The hormones in boys responsible for producing male characteristics are Testosterone and ___ .
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The primary hormones involved in  the functioning of the male reproductive system are follicle stimulating hormone (FSH),Luteinizing hormone (LH) and Testosterone.

Hope this helps.
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