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Alex777 [14]
3 years ago
10

Which culturing method proivded the clearest results, the semisolid medium tube or the soft agar plate?

Biology
1 answer:
sattari [20]3 years ago
5 0
The answer to this question would be soft agar plate.

The semisolid medium tube is mostly used for containing the specimen. It is hard to examine semisolid medium since the bacteria can grow in the upper part, middle part or even the lower part of the medium. In agar plate, the bacteria always growth in the upper part so it is easier to count the bacteria.
But semisolid can give some more information in determining whether the bacteria is anaerobic by looking for bubble inside the medium. Anaerobic bacteria can do fermentation that will produce air.
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Which of the following is a direct benefit of biodiversity?
IRISSAK [1]

improved soil fertility

Explanation:

One direct benefit of biodiversity is improved soil fertility. Biodiversity is the variety of plants and animals living in a particular ecosystem.

  A soli is made up of organic matter. Organic matter is the remain of dead and decaying plant and animal materials in the soil.

Organic matter is a very important soil component.

Since plants and animals eat up plants which takes nutrients from the soil, there must be a way to replenish these vital soil materials.

 The more biodiverse an ecosystem, the better its chance of adding more nutrients to the soil as they decay.

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8 0
3 years ago
Which of the following provide evidence that natural selection occurs in peppered moths?
nlexa [21]

Answer:

B

Explanation:

When the moths camouflage with their surroundings, they are less likely going to be eaten by their predators. So therefore, more moths are going to want to mate with the darker moths that blend with their surroundings.

3 0
3 years ago
I swear it is easy plz help me 6 7 8 9
ch4aika [34]

Answer:

i think:

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Explanation:

i dont know number 7

6 0
3 years ago
What's the definition of phloem<br>​
saul85 [17]
The vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves.
8 0
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A risk factor for osteoporosis is a. early menopause. b. ovarian cysts. c. late menopause. d. endometriosis.
Allisa [31]

Answer:

The correct answer is a. early menopause.

Explanation:

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This decrease in estrogen levels in females can lead to osteoporosis in women. So early menopause increases the chances of bone loss in woman and bone loss increases the chances of fractures in women. One in two women who are above 50 in America breaks a bone due to osteoporosis. Therefore the correct answer is a. early menopause.

3 0
3 years ago
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