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kondaur [170]
3 years ago
5

Help me on number 20 and I will think u

Biology
1 answer:
Zepler [3.9K]3 years ago
5 0

The pyramid is not shaped like a typical pyramid, because the bottom should be bigger and getting smaller on top.

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What is the best choice for a blank when calibrating the spectrophotometer when you will later measure the absorbance of beverag
ELEN [110]

When calibrating a spectrophotometer, measuring absorbance concurrently is the best option for a blank since it is proportional to the concentration.

Beer's law states that A = a b c, wherein there is the diffusion coefficient at a constant, b is the actual route length, & c is the concentration. Direct proportionality exists between b and c and absorbance.

Once the route length is doubled, incident light contacts double as many molecules in the solution. The consequence is a doubling of absorbance, which is equivalent to a doubling of molecule concentration.

There are two ways to detect chemicals using spectrum scanning. One approach involves turning the monochromator continuously with a stepping motor while gradually altering the wavelength connected to the output slit.

It is more practical to use diode array detectors. Up to a few hundred photodiodes may be incorporated into the chip that makes up this device.

Learn more about spectrophotometers at

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6 0
1 year ago
Scientific models are based on a set of observations.
faust18 [17]
The right anwser is true
3 0
3 years ago
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PLS ANSWER I WILL GIVE BRAINLIEST
mezya [45]

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water, "light", and sunthesis, "putting together". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.

Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centres that contain green chlorophyll pigments. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas. The hydrogen freed by the splitting of water is used in the creation of two further compounds that serve as short-term stores of energy, enabling its transfer to drive other reactions: these compounds are reduced nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine triphosphate (ATP).

8 0
2 years ago
List two alternative futures for cells when they reach their size limitations
Sveta_85 [38]
When they reach size limitations....they divide by binary fission or any other process of reproduction !

second may be they stop division and stay at their state as happens in ovum of the female as they stops in diakinesis !!!
4 0
3 years ago
2. What elements<br> up molecules of sugar?
ch4aika [34]

Answer:

carbon, hydrogen and oxygenation

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