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3 years ago

Important advantages to raised-bed gardens are that they

Biology

1 answer:

Illusion [34]3 years ago

8 0

A raised-bed garden is a type of gardening method in which the vegetables and other small plants are grown in garden boxes kept elevated above the ground. These garden boxes are kept separated from each other.

The advantages of having a raised-bed garden are:

1. The movement of harmful pest from crop to another is hindered.

2. It prevent the compaction of the soil.

3. It stops the propagation and growth of weeds from one box to another.

4. It provides better drainage of water from the soil.

5. The walls of the garden box prevent the erosion of the soil.

6. The garden boxes conserve space.

Hence the answer will be B. conserve water and space for growing and limit compaction of the soil.

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A negative tropism is when a plant grows towardaway from a stimulus.

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A negative tropism is when a plant grows away from stimulus

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3 years ago

I need this now,I'll give you 100 points for answer 10 questions.

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Answer:

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2 years ago

In northern Canada, a population of rabbits was predominantly white in color. The allele for white color is recessive while the

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3 years ago

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What does the main function of our circulatory system

babymother [125]

1) carries food and oxygen to the different cells of the body; 2) carries body wastes away; 3) protects the body from diseases; and 4) serves as the body's defense system.
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3 years ago

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An unknown bacterium produces colorless colonies when inoculated onto an EMB plate. Predict what you would see if you inoculated

marshall27 [118]

The EMB (Eosin Methylene Blue) agar is a selective and differential agar medium. It contains sucrose and lactose as fermentable substrates together with Eosin Y and methylene blue dyes which in combination gives the agar its characteristic color when prepared and serves as a pH indicator as well as an inhibitor of growth of Gram-positive bacteria. Hence, it is primarily used to isolate Gram-negative fecal coliforms while some positive fecal coliforms such as Staphylococci are also able to grow.

These coliforms are of two types:

Lactose or sucrose fermenting coliforms form metallic sheens on the agar as a result of acid production and the response of the indicator to the increased acidity.
Non-lactose/sucrose fermenters are only able to produce acid by protein deamination. Hence they either form colorless or pinkish colonies on the agar

On the other hand, Mannitol salt agar is a selective and differential agar medium that is primarily used to isolate Staphylococcal bacteria. The presence of sodium chloride in the medium makes it a partial or complete inhibitor of other bacteria.

Hence, an unknown bacterium that forms colorless colonies on EMB will either be a non-lactose fermenting, Gram-negative coliform that will hardly grow on Mannitol salt agar, or a Gram-positive fecal Staphylococcus.

Staphylococci bacteria are of two types:

Coagulase-positive will form yellow colonies on the Mannitol salt agar.
Coagulase-negative will form red colonies on the Mannitol salt agar.

More about isolating media can be found here: https://brainly.in/question/7238948

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3 years ago