Salmah suspects that she has been given a forged cheque. How can
the forgery be identified using one of the scientific processes?

Answers

Answer 1

Answer:

Paper Chromatography

Investigators use paper chromatography to distinguish the different brands of ink pens used by the suspects and compare it to the forged cheque.


Related Questions

Complete the sentence using the correct term.
-blank- technology allows us to create combinations of genes from two different species.

Answers

Answer:

Cloning technology

Explanation:

With cloning technology we can replicate and combine different genes to study, save lives, and create new species

Protists are
A. the simplest of eukaryotes
B. members of a single kingdom
C. the simplest of eukaryotes, and are generally aquatic
D. the simplest of eukaryotes, generally aquatic, and members of a single kingdom
E. generally aquatic

Answers

Answer:

D

Explanation:

that is the answer 101010101010101001

state three features of myriapods that can be used to distinguish them from other arthropods​

Answers

Answer:

Mandibles (lower jaw) and maxillae (upper jaw)

Two body sections (head and trunk)

One pair of antennae on the head

Explanation:

hope this helps! have a great day / night

Although Myriapods share many characteristics with other arthropods, they distinguish for having an elongated and multisegmented body, one or two pairs of legs per segment, two antennae, and rolling-up ability

----------------------------------------  

As the name refers to, Myriapods have many feet. They characterize because their bodies are very elongated and divided into multiple segments. From each of the rings, emerge one or two pairs of legs.

As every arthropod, their bodies are segmented and covered by a cuticle for protection and to avoid dehydration.

Their heads carry two antennae, ocellus, and a mouth with prominent buccal appendixes. Some of them might be poisonous.

They can be slow when moving, but they are well-adapted to move through leaves and other organic material. But because they move slowly, they need a protection strategy to avoid predation. This strategy is rolling. They can roll up, and remaining like a boll, until the predator leaves.

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How does this affect the change?

Answers

Answer: B. It sped up evolutionary change by increasing genetic variation.

Explanation:

Evolution works when organisms with genes that are better suited to the environment pass on their genes to future generations.

Sexual reproduction sped up this process because it allowed for genetic variation as genes from the two mates would be passed on the next generation instead of one organism as had been the case with asexual production.

With genes from both mates mixing up and going into the next generation, more genetic variations were produced which allowed for the organisms to better adapt to the environment.

Soooo... anyone have an essay on the impact of climate change on the oceans they’d like to share?? :)
I need ideas!!!

Answers

Answer:

Here's a paragraph that you can add !

Explanation:

When greenhouse gases capture more solar radiation, the oceans consume more heat, resulting in higher sea surface temperatures and increasing sea level. Changes in water temperatures and tides caused by climate change will cause changes in global climate patterns.

how can a brick wall model as a group of plant cells

Answers

Answer:Like a brick wall, your body is composed of basic building blocks, and the building blocks of your body are cells.For example, epithelial cells protect the outside surface of the body as part of the skin and cover the organs and body cavities within. Bone cells build up bones to provide support for the body.

Explanation:

wrote an essay on it

Herd behavior benefits wildebeests by (1 point)
O increasing the number of resources availablė.
O allowing altruistic behavior.
O decreasing the chance of spreading disease.
O helping individuals find mates.

Answers

Answer:

helping individuals find mates.

Explanation:

took test

The correct answer is option d helping individuals find mates.

We can begin the solution for this one with a method of elimination.

2 cannot be proper due to the fact herding conduct nearly definitely will increase the possibility of spreading diseases. For 3, having extra people in a set affects more opposition and consequently fewer assets so we are able to get rid of that one as well.Then the selection is among 1 & four. You ought to make a controversy for four however it appears a piece indistinct concerning the precise advantages of altruistic conduct. I'd argue that altruistic conduct is extra of an effect than a motive of sociality/herding.Choice 1 is a not unusual place reason for sociality in animals. In species that do not stay in social organizations trying to find buddies may be very high priced in phrases of time and electricity and publicity to predators. It's a whole lot less difficult to discover a mate while many people are residing in proximity. Because replica is this kind of essential a part of the existence cycle I consider 1 is the exceptional answer.

What is herd behavior?

Herd conduct is the conduct of people in a set appearing together without centralized direction. Herd conduct happens in animals in herds, packs, chook flocks, fish faculties, and so on, in addition to in humans.

Thus it is clear that the option that helps individuals find mates is the correct answer.

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Answers

Answer:

A gene mutation

Explanation:

DNA nucleotide sequence is unique

What farming practices have depleted grasslands in North America?

Answers

Answer:

Cultivation of crops and tillage practices.

Explanation:

Farming of crops and tillage practices on the grasslands depleted grassland that are present across North America because the lands are converted and used for the production of food crops in order to fulfill the feed the existing population. More and more land is converted from grassland to the cultivation of crops that leads to lower area for the grazing of animals which results in decrease population of animals such as sheep, goat and cow etc which depends n these grazing regions for food.

A scientist wants to determine whether a mutant phenotype is due to the loss of gene C or gene D, which are both deleted in a mutant fly with abnormal eyes. Mutant flies with that have a transgenic gene C have wild-type eyes, whereas mutant flies that have a transgenic gene D have abnormal eyes. What can be concluded from these results

Answers

Answer:

a transgenic copy of the gene C is sufficient to restore normal eye development

Explanation:

In genetics, there are diverse approaches to determining a gene's function. For example, it is possible to use a complementation test to determine loss-of-function recessive mutations when it is unknown if such mutations fall in the same or in different genes. Similarly to the generation of loss-of-function phenotypes, it is possible to insert a gene and thus produce a gain-of-function mutation that restores normal gene function (i.e., to restore the wild phenotype). Moreover, transgenic organisms refer to genetic engineering techniques by which any foreign or modified gene is inserted in the genome of an organism, which can also be used to study gene function. In this case, the restoration of the normal phenotype (wild-type eyes) is associated with the expression of the transgenic gene C, thereby evidencing that the gene C is required for normal eye development. In the last years, transgenic models have shed light on developmental pathways and on gene function.

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Answers

Answer:

small fishes--tuna fish--dead animal material---crabs

Explanation:

follow the arrows from small fishes to crabs

Answer:

Answer is below

Explanation:

Small fish ---> Tuna Fish ---> Dead Animal Material ---> Crabs

This shows the path specifically followed from the small fish to the crabs

I really need help please somebody...

Answers

i think 75% due to some may have no horns bc its non dom

Answer:

first choice: 25%

Explanation:

when crossing Aa x aa, there is a 25% chance that the outcome will be Aa, giving the resulting cattle offspring horns. Hope this helps!

A scanning electron microscope is a type of light microscopes that has more than one lens
True
False

Answers

Answer:

true

Explanation:

the condenser lens is the size of the electron beam and the main objective lens is to focus the beam on the sample

so that scanning electron microscope have two projector lens

sorry if its not correct

Şermin yaşar gelirken ekmek al kitabı özet acilll​

Answers

Answer:

Kitabın Yazarı:Şermin YaşarKitap Türü:Öykü/HikayeYayınevi:Doğan KitapçılıkYayınlandığı Yıl:2019 (19-10-2019)Sayfa Sayısı:196ISBN:9786050966534Kitap Puanı:8 / 10 | Yorum: 22

Explanation:

What!????????? I don’t understand this

identify Whether the flu is a viral or bacterial in nature.
Are viruses living or non-living?
Would antibiotics be helpful towards the influenze virus structure.

No Links Pleaseoduce by the process of

Answers

Virus are considered to be non living
No antibiotics won’t be helpful towards influenza virus it can inturn result to antibiotic resistance
Flu is viral

Answer:

Viruses are Non- living they can't keep themselves in a stable state, they don't grow, and they can't make their own energy. Antibiotics won't help, and their side effects could cause harm. Because flu is a viral illness, antibiotics won't help to treat it.

Explanation:

Why is global warning considered a controversial issue?

Answers

answer: The global warming controversy concerns the public debate over whether global warming is occurring, how much has occurred in modern times, what has caused it, what its effects will be, whether any action can or should be taken to curb it, and if so what that action should be. In the scientific literature, there is a strong consensus that global surface temperatures have increased in recent decades and that the trend is caused by human-induced emissions of greenhouse gases.[1][2][3][4][5][6] No scientific body of national or international standing disagrees with this view,[7] though a few organizations with members in extractive industries hold non-committal positions,[8] and some have attempted to convince the public that climate change is not happening, or if the climate is changing it is not because of human influence,[9] attempting to sow doubt in the scientific consensus.

Which list shows the steps by which surface water can become groundwater?
A. Zone of saturation → zone of aeration → precipitation
B. Precipitation → zone of aeration → zone of saturation
C. Zone of aeration → zone of saturation → precipitation
D. Zone of saturation → precipitation → zone of aeration

Answers

The steps by which surface water can become groundwater

B. Precipitation zone of aerationzone of saturation.

What is Groundwater?

Groundwater is the reservoir of water this water accumulates in the ground surface or subsurface of the earth's crust through tiny pores and fractures in the rocks.

The source of water are streams of rivers, oceans, lakes and large depositing is because of water from the rain and melting of the snow. It is a source of freshwater in nature.

Thus, option "B" is correct.

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The machine that removes small plants from plug trays and transplants them
directly to pots is called which of the following?
a. automated seeder
b. automated pot filler
c. automated transplanter
d. automated plugger

Answers

Answer:

anwser is

C. automatic transplanter

hope it helped

In a diagram of a food chain where does a producer such as a tree get the beefy it needs to survive?

Answers

Answer:

from the sun

Explanation:

producers get light energy from the sun

Answer: a producer such as a tree would get its energy/food from the process of photosynthesis.

Explanation:

Phenylketonuria causes a severe cognitive disability due to the inability to metabolize phenylalanine. It is an autosomal recessive disorder. About one in 12,000 newborns in Massachusetts are afflicted with the disease, skewed higher than the general US population due to more Irish-Americans. Assuming the gene is in Hardy-Weinberg equilibrium, the frequency of the carriers (heterozygotes) in Massachusetts would be calculated to be...

Answers

Answer:

The frequency of the carriers (heterozygotes) in Massachusetts is 0.018

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

which three layers of the sun make up the suns atmosphere

a - plasma, corona, convection zone
b - radiative zone, convection zone, core
c - core, convection zone, chromosphere
d - photosphere, chromosphere, corona

Answers

Answer:

B

Explanation:

Or  - radiative zone, convection zone, core

Sun's atmosphere consists photosphere, chromosphere, and corona. Hence option d is correct.

What are the three layers of the suns atmosphere?

Sun is divided into two parts internal sun and atmosphere. In sun's atmosphere, it consists photosphere- the visible surface of the sun,

chromosphere- it is the transition state between the photosphere and corona.

The outermost hot shell of the atmosphere is the corona, these there layers males the sun's atmosphere.

These three layers make the sun's atmosphere apart from its internal structure, core, radiation zone, and convection zone these are three interior layers of the sun.

Therefore option d corona, chromosphere, and photosphere are correct.

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Imagine two populations of penguins live in the same ecosystem. One population begins to exchange stones as a mating ritual while the other population begins to dance by shifting from one foot to the other. Individuals from each population will only mate with individuals that display the appropriate mating ritual. Which type of reproductive isolation mechanism does this scenario describe?(1 point)

Behavioral Isolation

Geographic Isolation

Temporal Isolation

Habitat Isolation

Answers

Answer:

i think its behavioral

Explanation:

Answer:

The answer would be Behavioral Isolation.

Explanation:

I did the Connections Academy Quick Check and it said it was correct.

Explain why atp is important in biochemical reactions

Answers

Answer:

ATP releases energy (ATP + H2O --> ADP + P + energy) and in order for things like active transport to happen ATP is required.

answer the question that follows. In which category of animals do salamanders fall? A.fish
B.reptiles
C.invertebrates
D.amphibians

Answers

D.amphibians: Salamanders belong to the Salamandroidea family and belong to the class of Amphibia. Salamanders have several other names including mud puppy, water dog, triton and spring lizard.

Design an experiment to test the role of thyroxine in helping the body adjust to cold temperatures. Describe the overall investigation to be done, the variables to be changed, the variables to be kept constant, the subjects to be used, the control and experimental conditions to be used, the type of data collected, and how the data will be collected. Explain how these data can be used to justify the conclusion that thyroxine is involved in adjusting body temperature in response to cold. (9 points)

Answers

Answer:

- Hypothesis: thyroxine gene is responsive to low temperatures, thereby its transcript level is higher in cold climates

- Subjects of study: gene expression data collected from individuals from countries with different climates  

- Experiment: to determine thyroxin gene expression level by Real-Time PCR (RT-PCR) in individuals living in cold climates (e.g., Iceland) versus individuals living in warmer climates (e.g., Puerto Rico)

- Independent variable: temperature

- Dependent variable: thyroxin transcript level  

- N sample: 500 individuals of each population  

- Control group: individuals living in the same climate conditions but from different countries. It can be done by collecting gene expression data from individuals living in another country. For example, both Fairbanks (Alaska) in the USA and Reykjavik in Iceland are at 64 degrees N latitude, and thereby these cities have similar climates

- Constant variable: all data collected from individuals of adult age (age range: 20-30 years)  

Explanation:

The scientific method is a sequential process that consists of making hypotheses in order to explain observations from the real world, make predictions based on the working hypotheses, carrying out experiments based on those predictions, test the predictions and draw conclusions based on the results obtained. In an experiment, the independent variable isn't changed by the other variables, while the dependent variable is the variable being measured in the experiment. A constant variable does not change during the experiment. Moreover, a control group is a particular group to which comparisons are made during the experiment (the control group isn't exposed to the independent variable, and therefore any change in the experimental groups can be compared with the control). In this case, it is expected to measure thyroxine expression levels in 500 individuals from each country by RT-PCR (RT-PCR technique is used to measure the amount of mRNA of a target gene of interest). Subsequently, it is possible to determine if the differences in the thyroxin gene expression levels between populations (i.e., individuals living in Iceland vs individuals living in Puerto Rico) are statistically significant to confirm that thyroxin gene activity is increased in response to cold exposure. Finally, the control group can be used to determine if observed differences in gene expression are irrefutably correlated with cold conditions.

Individuals in a population of purple people earters are polymorphic at a single locus that leads to variation in purple people eater pup viability. 45% of the pups with genotype PP are viable, 54% of pups with genotype Pp are viable, but only 4% of pups with genotype pp are viable. What model of natural selection best fits these data

Answers

Answer:

The correct answer is - overdominance.

Explanation:

In the given question, genotype Pp is a heterozygote condition that has a 54% survival rate or fitness thus these individual people get more chance of mating and increase in number as compared to the other two conditions of PP or pp traits where PP has 45% survivability, less than heterozygous condition and more than pp that has only 4% rate.

It results in a normalizing selection model of natural selection as a moderate trait, that is heterozygote, is selected. Thus, the selection of overdominance which means heterozygote condition produces a better phenotype than PP or pp parents is heterosis.

You burn a log on a fire. You use the fire to warm yourself and to light up the
room to read a book. Which energy transformation is taking place?

A. Chemical energy is transformed to nuclear energy and thermal
energy
B. Chemical energy is transformed to light energy and thermal
energy
C. Thermal energy is transformed to light energy and chemical
energy
D. Nuclear energy is transformed to potential energy and thermal
energy.

Answers

Answer:

b) is the the answer

Explanation:

hope it helps

What hormones stimulate the cycle of egg or sperm production?

Answers

Answer: The main reproductive hormones are estrogen and testosterone. Once a girl enters puberty, estrogen matures the eggs in the ovaries. These are then released at regular intervals during the menstrual cycle. Testosterone stimulates the production of sperm in men.

Explanation:

Ecosystems: Relationships: Question 4
Look at the table.
Environmental Level Content of the Level
1
a fallen tree rotting in a forest
N
all the living things in the fallen tree
3
the ants in the fallen tree
4
an ant
Which level of the table is best labekd organism?
Select one:

Answers

Answer:

an organism is any living thing..including ants...

Which of the following functions in multicellular organisms is similar to the function of DNA in unicellular organisms?
A.
Inheritance of traits


B.
Cell respiration


C.
Cell digestion


D.
Protein synthesis

Answers

A. Inheritance of traits

Both single and multi-celled organisms embrace a functional unit of life, known as “Cells”. Both of them consist of plasma membrane and cytoplasm. They carry similar features by containing DNA and ribosomes for the gene expression. All known forms of life store their genetic information using DNA, and with a few exceptions the code is universal.Both have basic unit of life (cell). Which means they both ingest food ,respire, and get rid of waste.Multicellular organisms are bigger than unicellular organisms. Unicellular has a single cell but multicellular have more than one cell.

Thus, option A is correct.

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