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Bumek [7]
3 years ago
9

Methods for the Culturing

Biology
1 answer:
Maru [420]3 years ago
3 0

Answer:

There are several types of bacterial culture methods that are selected based on the agent being cultured and the downstream use.

• Broth cultures.

• Agar plates.

• Agar based dipsticks.

• Stab cultures.

• Culture collections.

•Solid plate culture of thermophilic microorganisms.

• Isolation of pure cultures.

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The curve below shows the percentage of population of aquatic species that die in response to doses of pollutant A:
Ivan

No need for evacuation but continue groundwater monitoring due to lower dose of toxic substance.

No need for evacuation, continue groundwater monitoring because the dose of toxic substance in a normal or safe range. In this range the toxic substance can't affect the health of people who drink that water.

If the dose of toxic substance increases more than 10 mg/ kg then the toxic substance killed people who drink that water. According to the graph, we can see that the dose is in a normal range so we can conclude that no need of evacuation for the people.

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7 0
3 years ago
Describe what happens by the end of anaphase.
Vsevolod [243]

Answer:

d. The cell begins to elongate and the two poles have an equivalent collection of chromosomes.

Explanation:

The cell cycle is a fundamental cellular process by which a parent cell divides into two or more daughter cells. In somatic cells, this cycle can be divided into two major phases: interphase, where the cell prepares for its division, and mitosis or 'M phase'. The M phase can in turn be divided into four stages: 1-prophase (also divided into early prophase and prometaphase), 2-metaphase, 3-anaphase, and 4-telophase. During prophase, chromatin condenses, thereby forming visible chromosomes. Subsequently, during metaphase, the sister chromatids (i.e., the two identical halves of a single replicated chromosome) align along the middle of the cell at the metaphase plate by attaching their centromeres to the spindle fibers. Next, during anaphase, sister chromatids are separated and move to opposite poles of the cell, pulled by the mitotic spindle fibers. At the end of anaphase, the microtubules of the mitotic spindle pull the two sister chromatids toward opposite poles, thereby the cell gets begins to lengthen. Finally, during the telophase, daughter chromosomes arrive at opposite poles and uncoil, while daughter nuclei begin to form at the two poles and nuclear envelopes are formed.

4 0
3 years ago
Are low pressure systems are associated with a low or high density
ch4aika [34]
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8 0
4 years ago
I NEED HELP PLEASEEEE :PPPP I WILL GIVE BRAINLEIST
skelet666 [1.2K]

Answer:

Otter

Explanation:

Otters depend on yellow perches, if the amount of yellow perches decrease so will its predators.

6 0
4 years ago
Read 2 more answers
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