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Kitty [74]
3 years ago
11

Which of these agricultural practices is sustainable?

Biology
2 answers:
Natalija [7]3 years ago
5 0
B is unsustainable as this is a practice of intensive farming usually conducted indoors, and is resource and energy expensive. C is unsustainable because groundwater is a limited resource and groundwater can take 1000s of years to be recharged. D is unsustainable as this involves moving water across vast distances and is expensive and ecologically damaging. A is sustainable as drought-resistant plants would in the long run use less water.
Triss [41]3 years ago
5 0

The answer is indeed A. Using less water to grow crops that are less water dependent apex

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Which characteristics s common in young rivers
Marta_Voda [28]

Answer

Characteristics of young rivers are;

• The river is small and flows with less energy down steep slopes

• Features formed are a result of erosion

• These rivers form V-shaped valley

• Form interlocking spurs when they meet obstacles

Explanation

A river in its youthful stages has a steep river gradient. The river is in most cases narrow and deep. Waterfalls and rapids are common in youthful stages of a river. The river channel is considered narrow and deep, with a V-shaped valley present. Vertical erosion is dominant and the channel of the river generally winds.

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3 years ago
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why is tetracycline selectively toxic against bacteria Eukaryotic cells will enzymatically destroy the drug. Eukaryotic cells wi
IrinaVladis [17]

Answer:

The correct answer is The drug binds to the 30S small ribosomal  subunit eukaryotes have 40S small sub unit.

Explanation:

Tetracycline belongs to broad spectrum antibiotic.Tetracycline is named so because it contain a derivative of four hydrocarbon rings.

 Tetracycline act by inhibiting the protein synthesis process in prokatotes by binding to the small ribosomal subunit also called 30S subsunit and blocks the binding of amino acyl tRNA to the A site or attachment site of ribosome.

 As eukaryotes contain 40S ribosomal  subunit,it becomes difficult for tetracycline to bind with 40S ribosomal subunit of eukaryotes.

 

6 0
3 years ago
By genetic modification and evolutionary processes, biodiversity is increased and decreased by habitat loss, population reductio
oksano4ka [1.4K]

Answer:

Genetic Modification is a procedure to change the qualities of a plant, creature or miniature life form by moving a bit of DNA from one living being to an alternate living being. This is done through focused expulsion of the ideal qualities from the DNA of one living being and adding them to the next living being. This strategy has for instance been utilized to create growths and microorganisms that produce drugs.

Evolution is the cycle by which current creatures have dropped from old progenitors. Evolution is liable for both the surprising similitude we see over all life and the astonishing variety of that life.

Explanation:

Evolution is change in the heritable qualities of organic populaces over progressive ages. These attributes are the statements of qualities that are given from parent to posterity during generation. Various attributes will in general exist inside some random populace because of transformation, hereditary recombination and different wellsprings of hereditary variety. Evolution happens when transformative cycles, for example, regular choice (counting sexual choice) and hereditary float follow up on this variety, bringing about specific qualities getting more normal or uncommon inside a populace.

It is this cycle of development that has offered ascend to biodiversity at each degree of natural association, including the degrees of species, singular life forms and atoms.

8 0
3 years ago
How many mL of stock solution of 2M NaCl do you need to prepare 100 mL of 0.150M NaCl?​
zhuklara [117]

Answer:

7.5mL

Explanation:

3 0
3 years ago
What would happen to a grape placed in a bowl with highly concentrated sugar water
Mashutka [201]
The grape is going to shrivel up. Reason for this is that the fluids in the grape and going to leak out in an attempt to equalize the sugar concentration inside the grape with what's outside the grape. This is an example of the grape being in a hypertonic solution.
5 0
4 years ago
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