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Fynjy0
15 days ago
15

You are studying the bacteria in the water of a nearby pond. From a 100 mL sample, you use a 0.5 mL subsample to inoculate a pla

stic dish filled with a semi solid nutrient medium that fosters growth of coliform bacteria. After an appropriate incubation period, you count 100 bacterial colonies growing on the surface of the medium. What conclusion can you make about the coliform bacteria in the pond water
Biology
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What structure is most important in forming the tetrads?
inysia [2303]

Answer:

The correct selection is the synaptonemal complex.

Explanation:

The organization of genetic material in tetrads within an organism is facilitated by a highly conserved structure known as the synaptonemal complex. This complex develops during prophase I in meiosis I and connects the chromatins of homologous chromosomes.

The structure itself is proteinaceous and consists of two ladder-like elements flanking a central portion known as the central element. The chromatins attach to the lateral structures while the central space between the two ladders aids in forming the tetrad.

Thus, the synaptonemal complex is the accurate answer.

4 0
2 months ago
Grains, seeds, nuts and root vegetables are examples of _________ carbohydrates and they take a __________ amount of time to bre
lana [2441]
Grains, seeds, nuts, and root vegetables are types of COMPLEX carbohydrates that require a LONGER time to be broken down, which helps one feel full for an extended period. Complex carbohydrates are polysaccharides made of chains containing hundreds of monosaccharide units, so they take more time to digest completely.
6 0
2 months ago
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Which four of these developments were made under Mongol rule during the Pax Mongolica? the extension of the Grand Canal in China
Tresset [2298]

Answer:

A postal system was developed.

Gunpowder-based weaponry became widespread.

China's grand canal was expanded.

Innovative medicines were created.

Explanation:

The term Pax Mongolica describes how the Mongol Empire's conquests affected the social, cultural, and economic aspects of life for people across the extensive Eurasian regions that were conquered during the 13th and 14th centuries.

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2 months ago
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Calculate solute of a 0.1M NaCl solution at 25 degrees Celsius. If the concentration of NaCl inside the plant cell is 0.15M, whi
s2008m [2378]
 The solute potential is indicated by the formula P = -iCRT, with i representing the ionization constant, C being the molar concentration, R as the pressure constant (R = 0.0831 liter * bars/mole * K), and T signifying the temperature in Kelvin (273 + °C). A 0.15 M NaCl solution at standard atmospheric pressure and 25°C has an osmotic potential of -7.4 bars, with Na+ and Cl- yielding 2 ions (in contrast to sucrose, which counts as one). Therefore, i = 2, and osmosis will drive water from the 0.1 to the 0.15 concentration.
7 0
2 months ago
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Studies in knockout mice have demonstrated an important role of the FOXP2 transcription factor in the development of vocalizatio
Tresset [2298]

Answer:

C) Human and Neanderthal vocal sounds might have been more alike than previously considered.

Explanation:

This inference is derived from the statement - "...the protein sequence it codes for is identical".

This conclusion is based on proof mentioned in the text and the reasoning that follows (suggesting its significance).

5 0
2 months ago
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