In 1953, who developed the model that is shown below?

Answers

Answer 1

Answer: There is no attached model, but the greatest discovery in biology in 1953 could be only the discovery of DNA double helix. Watson and Crick discovered the chemical structure of DNA molecule. They showed that the molecule is looked like twisted ladders, and described it as a double helix. Their discovery was the great basis for a development of modern molecular biology.

Answer 2

Answer:

Answer:

A: James Watson and Francis Crick

Explanation:

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What are nocturnal animals

Answers

- - A nocturnal animals and animals that are able to sleep during the day and be awake at night

A good example of this is a rat.
They are nocturnal because they are awake at night and sleep during that day.

- - Hope this helps! - -

They sleep during the day and come alive at night.

What measurement best describes the results of a scientific experiment regarding volume?

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Scientists use the metric system typically, because it is universal.

The units for volume depend if you are measuring the volume of a liquid or a solid.

The units for volume for a solid will be in meters or centimeters.

The units for volume for a liquid will be in liters or mililiters.

A strategy to reduce, reuse, and recycle would improve ocean health by _______.

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Since there are no choices given, here's a brief information about the strategy to reduce, reuse, and recycle and how would they improve ocean health.

>Pierre Fidenci, ESI President once said: "The ocean is like a soup of plastic mostly composed of fragments invisible to the human eyes, killing life and affecting dangerously our health."
>The present mass packaging and other short-lived applications of plastic is not sustainable and acceptable.
>The solutions:
material reduction;
design for end-of-life recyclability,;
increased recycling capacity;
development of bio-based feed stocks;
strategies to reduce littering, and;
the change of consumer behavior.

b: reducing the amount of garbage available to enter the ocean

You perform a spread plate to determine the bacterial population in a batch liquid media. You plate 0.1ml of a 10-5 dilution. You incubate the plate and count 10 colonies (cfu). What is the bacterial population in cfu/ml of the stock (undiluted) culture? 10 million colonies 1 million colonies 100 million colonies

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Answer: 10 million colonies

The volume of media used is 0.1ml and the concentration diluted to 10^-5, so the actual volume used would be: 0.1ml * 10^-5= 1ml * 10^-6

The media shows 10 colonies. The number of colonies per volume would be: 10 cfu/ (1ml * 10^-6)= 10* 10^6 cfu/ml= 10 million cfu/ml

The carbon dioxide humans breathe out is produced

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the carbon dioxide produced when humans breathe out

In which of the following states can water Not exist? A. liquid B. gas C. solid D. none of the above

Answers

Water exists in all the statesofmatter which are the solid, liquid, and gaseous states.

What are the states of water?

Water is known to exist in three different physicalstates. These are the solid state as ice, the liquid state as water itself, and the gaseous state as water vapors.

Under the conditions of standard temperature and pressure, the freezing point of water is zero degrees Celsius. At this temperature, water starts to freeze and attains a solid form which is in the form of ice. The density of ice is lower than the density of water because of the fixed intermolecular distances in ice.

Under the conditions of standard pressure and temperature, water exists in liquid form between temperature ranges of zero to a hundred degrees Celsius. Liquidwater is essential for all organisms. It functions as a universal solvent.

At a temperature above hundred degrees Celsius, the intermolecular integrity between the molecules of water starts to decrease and ultimately breaks completely. In these conditions, the water turns into vapors.

Therefore, water exists in all the states of matter which are solid, liquid, and gaseous states.