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Ainat [17]
3 years ago
13

If a fingerprint is discovered on a dark surface, what color fingerprint powder might be used?

Biology
2 answers:
Vera_Pavlovna [14]3 years ago
4 0
Gray....................

WITCHER [35]3 years ago
3 0

Whenever dusting a fingerprint with the fingerprint powder, it must be kept in mind that the color of the powder must contrast the color of the surface. When a fingerprint is discovered on the dark surface, then the fingerprint powder used must be of gray color, so that the print is easily visible when developed. The light color of gray will help the ridges of the print to stand out over the dark surface.

Hence, the correct answer is 'gray.'

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PLEASE HELP!! i need help with this for biology i’m desperate please
Vanyuwa [196]

As per the demonstration of Griffith and Avery, it can be concluded that the given experiment finding supports hypothesis III, i.e. genetic material or transforming substance is DNA.

<h3>What is Genetic material?</h3>

Genetic material may be defined as any substance found in the cells of plants, animals, microbial or other origins that hold genetic information and that departs it from one generation to the next.

In 1944, Avery and others concluded that the transforming material was pure DNA, not protein or RNA.

These investigators found that DNA extracted from a virulent strain of the bacterium Pneumococcus genetically transformed an avirulent strain of the organism into a virulent form.

Therefore, as per the demonstration of Griffith and Avery, it can be concluded that the given experiment finding supports hypothesis III, i.e. genetic material or transforming substance is DNA.

To learn more about Griffith's experiment, refer to the link:

brainly.com/question/8950307

#SPJ1

7 0
2 years ago
List all organelles that are found suspended or cushioned in the cytoplasm of an animal cell. There are 15 total
DIA [1.3K]

Answer:

The organelles in an animal cell are as follows:

cell membrane, nucleus, nucleolus, nuclear membrane, cytosol, smooth endoplasmic reticulum, rough endoplasmic reticulum, Golgi apparatus, ribosomes, mitochondria, centrosome, cytoskeleton, vacuoles, vesicles, and lysosomes.

Explanation:

An animal cell is a typical example of an eukaryotic cell i.e a cell that contains a membrane-bound nucleus. In the cell are certain structures that performs specific functions in the cell called ORGANELLES. The organelles, according to this question, are found suspended or cushioned in the cytoplasm of the animal cell.

A list of the organelles in the cytoplasm (part of the cell that excludes the nucleus) of an animal cell are as follows:

- cell membrane

- nucleus

- nucleolus

- nuclear membrane

- cytosol

- smooth endoplasmic reticulum

- rough endoplasmic reticulum

- Golgi apparatus

- ribosomes

- mitochondria

- centrosome

- cytoskeleton

- vacuoles

- vesicles

- lysosomes

3 0
3 years ago
Nitrogen is an important element needed for plant growth. What living organism plays a big role in adding atmospheric nitrogen t
kompoz [17]
Nitrogen fixation, N2 --> NH3+, is not something that plants to by themselves but some plants have bacteria that does this. I believe that pea plants have these, but I'm not 100% sure. 
7 0
3 years ago
DNA is made up of monomers called nucleotides. How many does mono- represent?
Lunna [17]

Answer:

It is often said that life is “carbon-based.” This means that carbon atoms, bonded to other carbon atoms or other elements, form the fundamental components of many, if not most, of the molecules found uniquely in living things. Other elements play important roles in biological molecules, but carbon certainly qualifies as the “foundation” element for molecules in living things. It is the bonding properties of carbon atoms that are responsible for its important role.

Carbon Bonding

Explanation:

8 0
3 years ago
Significance of plants in the carbon cycle
azamat

Answer:

Plants absorb carbon dioxide,water and sunlight to make their own food,grow and release oxygen through photosynthesis. They're also huge part in keeping our air clean, The carbon becomes part of the plant ;  When humans burn fossil fuels, most carbon enters the atmosphere as carbon dioxide.

Explanation:

6 0
3 years ago
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