What are some presumptive
tests for blood?

Answers

Answer 1

Answer:

Luminol, leuchomalachite green, phenolphthalein, Hemastix, Hemident, and Bluestar are all used as presumptive tests for blood. In this study, the tests were subjected to dilute blood (from 1:10,000 to 1:10,000,000), many common household substance, and chemicals.

Explanation:

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Related Questions

This is one of the phases of Mitosis.
P 7
Vuv
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What is happening to the chromosomes?

Answers

Answer:

Anaphase

Explanation:

The chromosomes are separates in preparation for cell division. This happens during anaphase.

write a function of optic nerve?​

Answers

The optic nerve is located in the back of the eye. It is also called the second cranial nerve or cranial nerve II. It is the second of several pairs of cranial nerves. The job of the optic nerve is to transfer visual information from the retina to the vision centers of the brain via electrical impulses.

Ecological control of invasive species is successful when?

Answers

Answer:

you're the species successful we are living humans

Sophie visited Carlsbad Caverns with her family during her summer vacation, and she was amazed at the cave’s formations. She learned that the cave was formed from minerals.

Rearrange the phrases describing one of the ways minerals form into the correct order. Place the earliest stage of mineral formation at the top. Place the final stage at the bottom. (Write 1 2 3 or 4 in order)
1. a solution forms from a liquid and dissolved substances
2. a warm solution flows through a crack in the rocks there
3. elements and compounds leave as the solution cools
4. elements and compounds crystallize
BASICALLY SAY WHICH STEPS GO FIRST IN MINERAL FORMATIONS! PLESSS

Answers

Answer:

The ways through which the minerals form include the following order:

2. a warm solution flows through a crack in the rocks there

1. a solution forms from a liquid and dissolved substances

3. elements and compounds leave as the solution cools

4. elements and compounds crystallize

Explanation:

From the explanations above, it could be seen that a warm solution (most probably water) flows through the cracks in the rocks leading to dissolution of substances to form liquid. When the liquid cools, the elements leaves and crystallize as compounds.

+
B
!!
= = = =
3. If the characteristic is absent in the animal, place a "." in the correct column, indicating that the animal
does not have that particular characteristic.
Table of Derived Characters:
Characteristic
Organism
Jaws
Limbs
Hair
Lungs
Opposable
thumb
Upright,
erect
posture
+
+
Lamprey
Trout
Caecilian
Turtle
Cat
Gorilla
Human
Total

Answers

Answer:

human is all the would becouse humanity important

Which of the populations shown in Figure 6 do you think is most likely to get bigger in size? Explain your reasoning.​

Answers

The middle because this is a mix of young and old which can get bigger

If the DNA sequence is GCTCAATTCGACCTA, the complementary RNA
sequence created during transcription is

Answers

Answer:

CGAGTTAAGCTGGAT

Explanation:

thymine pairs with adenine and guanine pairs with cytosine

T-A

G-C

PLEASE HELP!!!..........

Answers

Answer:

willows, lynx

Explanation:

PLEASE HELP! 20 POINTS!! Explain how genes relate to the presence of dominant and recessive traits

Answers

Answer:

Fires often remove alien plants that compete with native species for nutrients and space, and remove undergrowth, which allows sunlight to reach the forest floor, thereby supporting the growth of native species. ... Overall, fire is a catalyst for promoting biological diversity and healthy ecosystems.

Explanation:

Which of the following factors of a gene determines the protein, and therefore the trait, it expresses in a cell?

A. Its length and sequence of nitrogen bases.

B. Where the cell is found in the organism.

C. The position inside of the nucleus.

D. Its shape and color after cell reproduction.

Answers

Answer is c if not c u would say a

Its length and sequence of nitrogen bases. Therefore, option (B) is correct.

What are nitrogenous bases?

Nitrogenous bases are the building blocks of DNA and RNA, which are the genetic material of living organisms. They include adenine, guanine, cytosine, and thymine (or uracil in RNA), and their sequence in DNA determines the genetic code that directs the synthesis of proteins.

The length and sequence of nitrogen bases (adenine, guanine, cytosine, and thymine) in a gene determine the specific sequence of amino acids that make up a protein, and therefore the trait it expresses in a cell. This is known as the genetic code, which is a set of rules that determines how the sequence of DNA bases is translated into the sequence of amino acids in a protein.

The other factors listed (where the cell is found in the organism, the position inside of the nucleus, and its shape and color after cell reproduction) do not directly determine the protein or trait expressed by a gene.

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If a galaxy is 1 million light years away, the image that we take today is a picture of the galaxy when it was _______ younger.


ANSWERS;


1 million years


1 day


1 year


100 years

Answers

Answer:  A) 1 million years younger, if it's 1 million light years away, that's means the image taken is l million years before the current amount of years it is away now. think of it as taking a picture of a moving car, if said car is 10 miles away and you take a picture, after the picture is taken it's no longer that far away.

Hope this helps :)

Which term best describes two predators living in the same habitat who feed on the same prey?

A.coexistence
B.mutualism
C.competition

Answers

Answer:

The answer is C, competition

Competition refers to the interaction between the organisms to seek or feed on the same resource.

The term that best describes the two predators living in the same habitat feeding on the same prey is competition.

Competition can be defined as:

Competition in an ecosystem or habitat will take place when the ecological niche of organisms overlaps as both organisms try to use the same resource.

In habitat, the predators feeding on the same prey will have competition, as the predators will fight for food, nutrients, and a source of energy to survive.

Competition can be caused among animals due to food, space, and shelter.

Thus, the correct answer is Option C.

To know more about competition, refer to the following link:

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From the table shown below the most effective use of
irrigating a crop appears to be:
(a) Flood irrigation
(b) Drip irrigation
(c) Sprinkler irrigation
(d) Perforated pipe irrigation

Answers

Where’s the picture of the table?

How does change in each independent variable affect the dependent variable?​

Answers

Explanation:

although independent variables can stand alone dependent variables rely on the independent variables therefore when you change the independent variables the dependent variables can no longer depend on the independent variables.

When cells divide during meiosis, homologous chromosomes separate
independently of each other and are randomly distributed to the gametes.
How does this process lead to genetic variability

Answers

During meiosis, gametes receive different combinations of genes, and the offspring resulting from fertilization has a unique set of chromosomes. After fecundation, independent assortment generates unique gene combinations in the new generation.

The independent assortment of homologous chromosomes leads to gamete containing different sets of genes.

During metaphase I of the meiotic cell division, homologous chromosomes line up at the equator plate of the cell in a random mode.

The consequence of this independent assortment is that gametes receive different gene combinations, which increase genetic variation in offspring and may eventually confer an evolutionary advantage.

The independent assortment of homologous chromosomes and the process of recombination by which non-sister chromatids interchange genetic material are well known to increase genetic variation in the resulting gametic (meiotic) cells.  

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What is one significant drawback to transferring electricity produced by solar energy from states where sunshine is abundant to states where it is not? Electricity made from solar energy is different from fossil fuels, so it needs new types of power lines. Electricity made from solar energy is different from fossil fuels, so it needs new types of power lines. The transfer could only occur during the day because solar energy cannot be stored. The transfer could only occur during the day because solar energy cannot be stored. Electricity produced from solar energy farms must be used locally and cannot be transferred at all. Electricity produced from solar energy farms must be used locally and cannot be transferred at all. The cost to transfer electricity produced by solar energy over great distances can be high.

Answers

Answer:

The transfer could only occur during the day because solar energy cannot be stored.

Explanation:

The transfer of electricity produced from solar energy only occur during the day because solar energy cannot be stored at huge level. At homes, we can easily store the electricity made from solar energy with the help of batteries but for providing electricity to a state where thousands of houses are present, very big batteries are needed to store it which can't be made due to very high cost so that's why the solar energy can not be stored.

How do both sodium and potassium ions travel​

Answers

Answer:

Sodium ions pass through channels in the hydrophobic barrier that have been formed by membrane proteins. The crossing membrane is called facilitated diffusion because it is facilitated by the channel

Potassium ions have to be transocated through specific membrane transport proteins. It is then transported into the cell through potassium pumps with energy being consumed int the form of ATP.

The sodium-potassium pump goes through cycles of shape changes to help maintain a negative membrane potential. In each cycle, three sodium ions exit the cell, while two potassium ions enter the cell. These ions travel against the concentration gradient, so this process requires ATP.

Explanation:

Answer:

The sodium potassium pump goes through cycles of shape changes . In this way they help maintain a negative membrane potential. In each cycle, two potassium ions enter the cell while three sodium ions exit the cell . These ions travel against the concentration gradient. And this process requires ATP.

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Place the rock layers in order from youngest to oldest. youngest B G D H oldest​

Answers

Answer:

Please include a image so we could help

Explanation:

Sorry would love to help

Answer:

Could you add an image?

Explanation:

I would love to help you out on this one!!

how does inorganic compounds affect us as humans?​

Answers

Answer:

Oxygen is required by all cells for cellular metabolism and circulating blood must be well oxygenated for maintenance of life. Carbon dioxide is a waste product of cells and must be eliminated or a serious change in pH can occur, known as acidosis.

Explanation: brainlist?

In a family with parents who do not have hemophilia, one son has hemophilia. Who was the carrier of the gene for hemophilia?

*if possible, I also need a Punnett square *

Answers

Answer: All daughters of a man with hemophilia will be carriers

Explanation:

Define Trait please

Answers

trait is an obvious, observable, and measurable trait; it is the expression of genes in an observable way. An example of a phenotypic trait is a specific hair color

Answer:

a distinguishing quality or characteristic, typically one belonging to a person.

Explanation:

A trait is a distinguishing feature of a person's character. It can be physical or behavioral. An example of a behavioral trait is the tendency politicians have to exaggerate. An example of a physical trait is having blond hair and blue eyes.

hope this helps...

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what is biology?
a.science b.social​

Answers

Answer A Science

Explanation: Biology is one of the three main sciences that students study. It is the science of life.

why is active transport necessary for the absorption of amino acids in the blood stream

Answers

Answer:

Active transport is a mechanism that requires molecules to move against a gradient of concentration. The procedure needs energy.

The glucose molecules in the gut may be higher than in the intestinal cells and blood – e.g. after a sugar meal.

Explanation:

Active transportation is a process necessary for molecules to travel against gradient concentration. It takes energy to do this.

Ions are transferred to the root hair for the use of mineral ions in plants, which have an increased concentration compared to diluted soil solutions. Active transport occurs to enable the plant to take in the soil around the plant the nutrients it requires.

Glucose molecules in animals must be transported into the blood through the gut wall. In the intestine, glucose molecules may be more concentrated than in the intestinal cells and blood - following a sugar meal, for example. It will then spread from high intestinal concentrations to lower blood levels. This requires no energy.

However, glucose levels in the intestines may be lower sometimes. In that instance, active transport is involved in the transportation of glucose. This procedure requires breath-generated energy.

Which mutation is harmful to the organism?

Answers

Answer:Insertion or deletion results in a frame-shift that changes the reading of subsequent codons and, therefore, alters the entire amino acid sequence that follows the mutation, insertions and deletions are usually more harmful than a substitution in which only a single amino acid is altered.

Explanation:

Which valve separates between the left atrium and left ventricle

Answers

Answer:

Mitral valve

..........

the tricuspid valve, located between the right atrium and the right ventricle;
the pulmonary (pulmonic) valve, between the right ventricle and the pulmonary artery;
the mitral valve, between the left atrium and left ventricle; and
the aortic valve, between the left ventricle and the aorta.

Hope this helps

U-C-A-U-C-G-U-C-G-A-A-C-U-C. is it an RNA or DNA strand?​

Answers

Answer:

RNA

Explanation:

because it has uracil

A land breeze occurs during the ________ because the air above the land is a _________ pressure

Answers

A land breeze occurs during the spring because the air above the land is a greater pressure
Spring, and greater
Have a good day

Review Paragraph 5. What factor would not affect the island lizard gene pool once they
reached the mainland?

Answers

Here's link to the answer:

tinyurl.com/wpazsebu

Guys please help me with this assignment.

2) What your intended Career choice and your purpose for choosing that career choice?



Answers

Answer:

I want to be a fire fighter.

Explanation:

My career choice is to be a fire fighter. I want to be a fire fighter because I love to help people and being on a team. I am a very brave person so I think I would be good for the job. I am also a team player so I would work well with my fire crew.

Most plant growth takes place in the ____________________ of the root

Answers

Answer: Primary Growth

Most primary growth occurs at the apices, or tips, of stems and roots.

Explanation:

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11. What stance did Jimmy Carter have on Civil Rights? How do you know? social studies is useless to me How would I describe the movement of molecules, if I drop food coloring into a glass of water? PLEASE HELP!! ASAPThe question is on the picture Give two examples of elevation 3x^2 -12x +11=0How to complete the square 8 ^4 * 8^3(YOU CANT GET A FRACTION!) Please help With both questions HELP giving brainlest and extra points The diagram below represents the circulation of air above Earth's surface at a coastal location during the day and at night.This local air movement is best described as an example of1.conduction between Earth's surface and the atmosphere above it2.condensation of water vapor during the day, and evaporation of water during the night3.convection resulting from temperature and pressure differences above land and water4.greater radiation from the warmer ocean during the day and from the warmer land at nightSubmit Answer Rewrite the number in Standard form1.2 x 107 Matching. A shopper is in the grocery store, trying to decide whether to buy apples of a particular variety. Identify the food product attribute that most closely corresponds to each scenario. A. The shopper sees bruises on the apple. B. The shopper knows the apple variety tends to have a mealy texture. C. The shopper notices the PLU code, indicating the apple is USDA Organic. How do we know that height in humansis a polygenic trait and not a single-genetrait?A. There is no way to know for sure.B. People have varying heights.C. Height is too complex to be controlled by a single gene. Which of these sentences would work as the main idea for an article about famous lion tamers?Lion taming was not a common circus act until sometime in the twentieth century.Most famous lion tamers started their circus careers performing a less dangerous act.Lion tamers are not thinking of the lions needs when they force them to perform for roaring crowds.Elephant trainers were usually less famous to crowds than lion tamers and trapeze artists. Kalyan Singhal Corp. makes three products, and it has three machines available as resources as given in the following LP problem:Maximize contribution = 5X1 + 4X2 + 3X3Subject to: 1X1 + 7X2 + 4X3 Graph the inequality n > 1.8 What is the term used to describe a person's way of seeing things? How fast were both runners traveling after 4 seconds?40Distance (in yards)30201012.30Time in seconds Why do large islands usually have more species than smaller islands? Ethanol in the body is oxidized to acetaldehyde by liver alcohol dehydrogenase (LADH). Other alcohols are also oxidized by LADH. For example, methanol, which is mildly intoxicating, is oxidized by LADH to the quite toxic product of formaldehyde. The toxic effects of ingesting methanol (a component of many commercial solvents) can be reduced by administering ethanol. The ethanol acts as a competitive inhibitor of methanol by displacing it from LADH. This provides sufficient time for the methanol to be harmlessly excreted by the kidneys. If an individual has ingested 30 mL of methanol (a lethal dose), how much 100 proof whiskey (50% ethanol by volume) must be imbibed to reduce the activity of her LADH towards methanol to 5% of its original value? The adult human body contains ~40L of aqueous fluids throughout which ingested alcohols are rapidly and uniformly mixed. The densities of ethanol and methanol are both 0.79 g/cm3. Assume the KM values of LADH for ethanol and methanol to be 10-3 M and 10-2 M, respectively, and that Ki = KM for ethanol Can someone answer this i don't understand it