Alexis is trying to determine a victim's time of death. What is the LEAST effective method she can use for determining their time of death?
O A
О в.
O C.
OD.
rigor mortis
livor mortis
algor mortis
indicative acts

Answers

Answer 1

Time of death is determined by the rigor mortis method, which is the most effective forensic method hence option a is correct.

What is an effective method to determine the time of death?

 

This stiffening process, known as Rigor Mortis, has a generally known recurrence period and may thus be used to determine the time of death.

In general, if the corpse is warm and there is no rigidity, death happened within the last 3 hours. The death happened 3-8 hours earlier if the corpse is warm and rigid.

If the body is discovered before the body temperature has reached equilibrium with the ambient temperature, forensic experts can determine the time of death by measuring the body's core temperature.

Therefore rigor mortis is the best effective method to determine the time of death, hence option a is correct.

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Related Questions

PLS HELP FOR MY EARTH SCIENCE CLASS?!?

The right atmospheric composition is another key component for a
planet to sustain life.
Which telescope holds a promising future in our quest for Earth 2.0?

A Hubble Space Telescope

B Spitzer Space Telescope

C Fermi Gamma-Ray Space Telescope

D James Webb Space Telescope

Answers

James Webb Space Telescope holds a promising future in our quest for Earth 2.0

The correct answer is D

How are telescopes utilized?

A telescope is indeed a device used to observe distant objects. The planets & stars can be seen through telescopes. Binoculars and cameras both utilize some of the same optical engineering as telescopes.

How does a telescope operate simply?

Lenses, which are pieces of curved, glass, were employed in early telescopes to focus light. Curved mirrors are used by the majority of telescopes nowadays to collect light from the night sky. Light is focused by a telescope's mirror or lens' shape. When we gaze through a telescope, that light is what we're seeing.

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xamination of the photoreceptor rhodpsin gene family provides evidence for gene evolution by group of answer choices duplication and divergence. accumulation of random mutations. convergent evolution. spontaneous generation.

Answers

Examination of the photoreceptor rhodopsin gene family provides evidence for gene evolution by: duplication and divergence.

Rhodopsin is a protein which belongs to the GPCR family of receptors. It is the most abundant type of protein found in the rod cells. It is the receptor for vision in dim light. It is a light-sensitive protein. Rhodopsin is also called visual purple.

Divergence is the phenomenon where two organisms having the same ancestry become distant and different due to the course of evolution. They are homologous to each other as they may have similar anatomy but due to evolution, they perform different functions.

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Mitosis is a type of cell division that occurs I. to make more cells so organisms can grow. II. so organisms can replace old or damaged cells. III. when organisms make sex cells for reproduction. IV. only during fetal stages of development.

Answers

Answer: I and II

Explanation:

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which of the following statements is false? group of answer choices for genes very close together, the recombination frequency is very low. genes on different chromosomes independently assort. in a given occurrence of meiosis, a single crossover can lead to 4 recombinant gametes. recombination can enhance fitness by combining beneficial alleles. syntenic genes can be unlinked (independently assort) if they are far apart on the chromosome.

Answers

In the given occurrence of meiosis, a single crossover can lead to 4 recombinant gametes is false.

Following genes on same chromosomes might result in two kinds of gametes. If there is no crossing over, the results are paternal gametes. When genes cross across, the result is recombinant gametes. Parental chromosomes are chromosomes that are identical to their parents.

Recombinant chromosomes are chromosomes that are unique from their parents. The children have no genetic variation. When meiosis causes recombination, the results collected are said to contain a recombinant genome.

If no collaboration system during meiosis, the products retain their original combinations and are referred to as having a non-recombinant, or parental genotypes. Recombination occurs at meiosis, when mother and the father genomes recombine to generate gametes.

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which process or feature would most be responsible for the greatest incremental growth in a water droplet?

Answers

The process or feature that is responsible for the greatest incremental growth in a water droplet is collision coalescence.

What is Collision coalescence?

Collision coalescence is a natural phenomenon that take place in clouds in upper atmospheric regions.

In general, the atmospheric area having temperature above freezing point lead to the formation of collision coalescence process.

In such region, a sufficient incremental growth in water droplets takes place. These droplets then collide with each other and form precipitates which become heavier enough and then fall on earth in the form of rain.

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3. If the vinegar solution was a nutrient and the cubes were unicellular organisms,
which cube would be more able to "feed" its volume?

Answers

The cube smallest would be more able to "feed" its volume.

What exactly is a unicellular organism?

Multicellular creatures utilize a variety of cells to carry out their many duties, in contrast to unicellular organisms, which are composed of just one cell.

A single cell is referred to be a unicellular organism if it is capable of carrying out all the fundamental tasks required for existence. Amoeba, Paramecium, and other species with only one cell are a few examples.

In unicellular organisms, all essential bodily processes, such as metabolism, excretion, and reproduction, are carried out by a single cell. Eukaryotes or prokaryotes are both classifications for unicellular creatures. Archaea, bacteria, single-celled fungus, and single-celled protists are a few examples of unicellular creatures.

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contraction of which muscle normally accounts for around 75% of the air movement in normal quiet breathing?

Answers

The contraction of diaphragm normally account for around 75% of the air movement in normal quiet breathing.

This outward push is increased by the inspiratory muscles (mainly the diaphragm and external intercostals) during inspiration. This causes the lung tissue to expand and air to enter the alveoli at a rate regulated by airway resistance.

The so-called "silent" expiration is caused by the elastic recoil of the lung parenchyma, which causes these inspiratory muscles to relax and the lung to regain its equilibrium volume.

However, in forced expiration, the abdominal and internal intercostal muscles are employed to exert more force against the lungs, causing them to expel air more quickly and allowing expiration down to the residual volume (RV).

Lung function testing is performed to quantify these changes. In lung disease, these forces are altered.

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the layer of soil bound by the mucigel and root hairs and containing microorganisms and sloughed off cells of the root cap is called the

Answers

Rhizosphere refers to the layer of soil that is bound by root hairs and mucigel, and which also contains microorganisms and cells that have shed off the root cap.

What purposes do microbes serve?

Applications. Microorganisms are useful in the production of food, the treatment of waste water, the production of biofuels, and the synthesis of numerous compounds and enzymes. As model organisms, they are extremely useful in study. They have been turned into weapons and sporadic bioterrorism

Which microbe holds the most significance?

Most Significant Microbe You've Never Seen Of A microbe called Prochlorococcus is responsible for producing one of every six breaths you take. The most numerous organism on Earth is a small bacterium, though.

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proofreading removes approximately 99% of mismatches before dna replication moves on. how many mutations would you expect to see in the human genome if mismatches can be repaired by proofreading?

Answers

6,000. The majority of the replicative polymerases' proofreading activity is in charge of removing incorrectly incorporated nucleotides from the primer terminus prior to further primer extension.

What about DNA?The molecule found inside cells that carries the genetic material necessary for an organism to develop and perform .This data can be passed from one generation to the next thanks to DNA molecules.Humans and nearly all other species carry their genetic information in DNA, also referred to as deoxyribonucleic acid.The DNA of a privateer can be found in almost all of their cells.Nucleotides are chemical building units that structure DNA.A phosphate group, a sugar group, and one among four different nitrogen bases make up these building components.Nucleotides are joined together into chains, with the phosphate and sugar groups switching places, to make strands of DNA.It contains information needed to make proteins, which are other big molecules.These instructions are dispersed throughout 46 lengthy structures called chromosomes that are found inside each of your cells.Numerous smaller pieces of DNA, referred to as genes, structure these chromosomes.Today, DNA has three separate purposes: genetic, immunological, and structural, all of which differ greatly from each other and depend in different ways on the bases and the sugar phosphate backbone.DNA encodes the knowledge required to produce proteins, which is the main connection between DNA and proteins.DNA, however, isn't a protein.Long strands of nucleotides structure DNA.

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g at which point would you expect the largest number of voltage-gated sodium channels to be in an inactivated state?

Answers

Voltage-gated sodium channels are observed in lots of one of a kind mobileular sorts during the body, while epithelial sodium channels are mainly observed withinside the pores and skin and kidney.

The activation gates open whilst the membrane potential rises to about 55 mV (in this situation added on via way of means of an motion potential), permitting positively charged Na+ ions to go into the neuron thru the channels and elevating the voltage throughout the neuronal membrane in human neurons to +30 mV.

Voltage-gated Na(+) channels (VGSCs) begin motion potentials, which ends up in short electric sign transmission throughout mobileular membranes and among cells. In addition to commencing VGSCs, depolarization of the mobileular membrane additionally outcomes in a nonconducting circumstance acknowledged as inactivation.

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The _________ is a mixed gland with endocrine and exocrine functions that produces the majority of the digestive enzymes.

Answers

Answer:

The answer is pancreas.

The _pancreas________ is a mixed gland with endocrine and exocrine functions that produces the majority of the digestive enzymes.

Explanation:

Have a nice day^^

what maintains the driving pressure on blood while the heart is not contracting (ventricular diastole)

Answers

The driving pressure on blood while the heart is not contracting is the Recoil of the elastic arteries.

The lowest arterial pressure during this resting phase of the left ventricle is called diastolic pressure. Arterial pressure drop rate is primarily controlled by terminal resistance arterioles located at arterial-capillary junctions. Hemodynamics ultimately begins in the heart. The heart provides the driving force for all blood flow in the body.

Cardiac output drives blood through arteries and veins as a function of ventricular contraction. Ventricular motion results from the concentric shortening of the cardiomyocytes. Each time your heart beats, it creates pressure in your arteries. Pressure is greatest when blood is pumped from the heart into the arteries. As the heart relaxes between beats, the pressure within the arteries decreases.

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what are micelles? what are micelles? emulsifiers used to break fat globules into small droplets during digestion clusters of fatty acids, monoglycerides, and other lipids surrounded by bile salts that transport lipids across the cell membrane of the villi a type of lipoprotein needed to absorb lipids lipid-digesting enzymes located in the small intestine

Answers

Micelles are clusters of fatty acids, monoglycerides, and other lipids surrounded by bile salts that transport lipids across the cell membrane of the villi.

Micelles are carriers made of bile and phospholipids that could entice monoglycerides and fatty acids and shipping digested fat from meals to the enterocytes. When fats enters the small intestine, the gallbladder releases an emulsifier referred to as bile to interrupt up the big fats globules into smaller fats droplets.

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in the poorest countries like ethiopia and bangladesh, biomass represents blank percent of their energy consumption.

Answers

In the poorest countries like Ethiopia and Bangladesh, biomass represents 90% of their energy consumption.

Why is biomass a good source of energy?

Form of renewable energy produced when we burn biomass fuel is called biomass. Biomass fuels is derived from organic material such as harvest residues, purpose-grown crops and organic waste from homes, businesses and farms.

Biomass provides a clean and renewable energy source that can improve our environment , economy and energy security. Biomass energy generates less air emissions as compared to fossil fuels, reduces amount of waste that is sent to landfills and decreases our dependence on foreign oil.

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The sulcus that separates the atria from the ventricles is the ____________ sulcus.

Answers

The sulcus that separates the atria from the ventricles is the coronary sulcus.

Explanation

The Heart

The heart is a vital organ that plays an important role in our body. The function of the heart is to receive and pump blood throughout the body. There are large blood vessels in the heart called coronary arteries. Coronary arteries are responsible for delivering fresh oxygenated blood from the heart to the heart muscles.

Coronary Arteries

Coronary arteries are the main blood vessels in the heart and are one of the three main blood vessels that surround the heart. These arteries form the right and left coronary arteries, each of which forms a branch. The left coronary artery originates from the aorta above the left aortic valve and bleeds the left side of the heart. The right coronary artery originates from the right side above the aortic valve. The arteries travel down the coronary sulcus located between the atria and ventricles.

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the process of obtaining energy from food and storing it in cells is an example of catabolism true or false

Answers

Answer: True!

Explanation:

During the catabolism energy is released from the bonds of the large molecules being broken down. Typically, that energy is then stored in the bonds of adenosine triphosphate (ATP). The catabolism increases the concentration of ATP in the cell as it breaks down nutrients and food.

One challenge for organisms that live in this ecosystem?​

Answers

Answer:

Habitat Loss.

Explanation:

More challenges include but are not limited to, climate change including sea level rise, and levee stability.

what is the main fate of pyruvate in skeletal muscle when oxygen is limited, such in the first minute of high intensity exercise? what is the purpose of this reaction in muscle during exercise? what happens to the product of this reaction in the body?

Answers

NAD+ is produced during the production of lactate, and it can be recycled during glycolysis.

Intensity and an example are what?

According to the dictionary, intensity is the characteristic of being extremely powerful, concentrated, or difficult, or the strength or difficulty level of anything. Being able to run at your full speed for miles on end is an example of intensity. The speed at which a treadmill is going is an illustration of intensity. noun.

What is light intensity?

The pace at which light disperses over a surface of a specific region some distances from a source is referred to as intensity. The intensity changes depending on the source's power and distance from it.

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Select the correct answer from each drop-down menu.
Compared to its surroundings, the concentration of solutes is low inside a cell. So, the cell is in a
v solution. A particular solute in
this cell uses energy for ts transport from the cell to its surroundings. This type of transport is called

Answers

As compared to its surroundings, the concentration of solutes is low inside a cell. So, the cell is in hypertonic solution. A particular solute in this cell uses energy for its transport from the cell to its surroundings. This type of transport is known as Active transport.

A hypertonic solution is the one where the concentration of solutes is more than the intracellular solute concentration. Therefore, the movement of water from inside of the cell to the outside. This causes the shrinkage of cell.

Active transport uses some form of energy to transport the molecules against their concentration gradient. This energy can be direct from ATP, called primary active transport. Or due to the coupled downhill transport of some other molecule, called secondary active transport.

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Help me with this I keep getting it wrong apparently

Answers

Answer: Hello!

Explanation: The reason photosynthesis is beneficial towards people is because the process produces oxygen to breath. Hence A is correct.

Finn, tenth grade straight A student.

Have a great day!

Answer:

i think its Provide oxygen to breathe and provides carbon dioxide to do respiration with and im not sure if its either provides energy for food or provides ATP energy for our cells

Explanation:

sorry if i got this wrong

which of the following is an enzyme which results in staphylococcus aureus being more invasive than staphylococcus epidermidis?

Answers

The enzyme which results in Staphylococcus aureus being more invasive than Staphylococcus epidermidis is Hyaluronidase.

Hyaluronidase is an enzyme that breaks down primarily hyaluronic acid and it splits it into polysaccharides and is used in medicine in conjunction with other drugs to speed their dispersion and delivery.

Staphylococcus aureus encodes for a secreted hyaluronidase, hysA. Hyaluronidases are bacterial enzymes that cleave hyaluronic acid (HA) yielding unsaturated disaccharides. Initially, little was known about the regulation of this enzyme as well as its roles in Staphylococcus aureus physiology and pathogenesis.

Hyaluronidase is produced by S. Aureus as a mechanism to penetrate the connective tissue barrier and thereby establishing infections.

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Complete question:-

Which of the following is an enzyme which results in Staphylococcus aureus being more invasive than Staphylococcus epidermis?

A) lipase

B) M protein

C) hyaluronidase

D) pyrogens

E) neuraminidase

As frog embryo develops in its egg, its cells divide.

Which term best describes the structure that is replicated during this cell division?

Answers

Correct Answer:
Mitochondia

Explanation:
In the frog tadpole, the cartilage cells increase by mitotic division of the fully-formed and functional cell. In addition, there are centers of proliferation consisting of small rapidly dividing cells.

Conider an organim that ha two pair of homologou chromoome in each of it diploid (2n) omatic cell. How many chromoome would the organim' cell have during each of the following tage?

Answers

Humans have diploid (2n), which means that the majority of their chromosomal come in matching recreate as homologous chromosomes.

What in biology is homologous?

Having the same standard position and structure. When referring to two anatomical features or behavioral qualities in distinct animals that descended from a component or trait in their shared ancestral creature, biologists use the term homologous.

What does homologous mean?

These forelimbs are descended from the same ancestor tetrapod structure as the wings of birds and bats and the arms of great apes, the front flippers of whales, and also the forelegs of membered vertebrate animals like dogs and crocodiles.

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at about day 26, what will the chorionic villi do after sprouting from the blastocyst's outer membrane?

Answers

At about day 26, the blastocyst will form chorionic villi, which sprout from the blastocyst's outer membrane and make contact with the maternal blood supply.

The tiny, finger-like chorionic villi are extensions of the placenta with the same genetic makeup as the growing fetus. Testing for further genetic abnormalities and illnesses may be possible, depending on the family history and the availability of lab tests at the time of the surgery.

The placenta contains chorionic villi, which significantly increase the surface area via which the fetus can access the maternal blood supply.

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What is the % of water inside the cell?

Answers

Answer: 70%  

Explanation:

One function of the carbohydrate macromolecule is to store energy. Which other macromolecule also stores energy

Answers

Answer:

Lipids

Explanation:

They are stored as an energy reserve. In addition, they provide insulation and make up cell membranes.

They are made up of carbon, hydrogen and oxygen atoms.

What are some of earths water resources

Answers

Answer:

basically the atmosphere

all the ice caps

rivers seas oceans reservoirs

Create three relevant questions that you would like answered or clarified about the role of

DNA and chromosomes. Focus on the following areas as you generate questions:

i. The cause-and-effect relationship between the genetic code and gene expression

ii. Mechanisms of gene regulation

iii. The role of DNA segments that do not code for proteins

c) Make sure your questions are scientific questions, meaning they could be tested by scientists.

Answers

Three questions regarding DNA and chromosomes are:-

Question No. 1: What is a codon and how it could direct the sequence of amino acids during protein synthesis?

Question No. 2: What is an operon?

Question No. 3: What are introns and exons?

Answer No. 1: A codon is made up of three nitrogenous bases and it codes for a particular amino acid. 61 codons code for amino acids while the rest 3 do not code for any amino acid and hence act as stop codons.

Answer No. 2: Regulation of transcription is the basic step for the regulation of gene expression. In bacteria, more than one gene is arranged together and regulated in units known as operons.

Answer No. 3: Introns and exons are the non-coding and the coding sequences of the DNA respectively. Exons are those sequences which appear in the mature RNA, while introns do not appear on the mature RNA.

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which of the following provides support for the endosymbiotic hypothesis? multiple choice mitochondria and chloroplasts have their own genomes. double membranes are around mitochondria and chloroplasts. mitochondria and chloroplasts contain genes that are strikingly similar to bacterial genes. mitochondria and chloroplasts can synthesize proteins. all of the above statements provide support for the endosymbiotic hypothesis.

Answers

Statements that provide support for the endosymbiotic hypothesis are mitochondria and chloroplasts have their own genomes, double membranes are around mitochondria and chloroplasts, mitochondria and chloroplasts contain genes that are strikingly similar to bacterial genes and mitochondria and chloroplasts can synthesize proteins.

The Endosymbiotic Theory states that the mitochondria and chloroplast in eukaryotic cells have been as soon as cardio bacteria (prokaryote) that have been ingested via way of means of a huge anaerobic bacteria (prokaryote). This principle explains the beginning of eukaryotic cells.

The endosymbiotic speculation for the beginning of mitochondria (and chloroplasts) indicates that mitochondria are descended from specialised bacteria (possibly crimson nonsulfur bacteria) that one way or the other survived endocytosis via way of means of every other species of prokaryote or a few different cell type, and have become included into the cytoplasm.

Correct option is 5) All of the above.

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- in making the crude protein extract from your e. coli pellets: what role did alumina play? what role did the centrifugation step after the addition of alumina accomplish? (2 points)

Answers

In making of crude protein extract from your e. coli pellets, alumina play an important role .

What happens in purification process?

The purification procedure consists of two separation techniques:  ammonium sulfate precipitation and affinity chromatography. In this purification, an extract of E. coli is first created from a frozen pellet of the E. coli mutant strain which produces b-galactosidase. The extract is made by  by grinding them in a mortar and pestle with alumina.

After centrifuging, the supernatant is collected and used in the first fractionation step.  The proteins in the crude cellular extract are fractionated by exploiting differences in protein solubility.

Ammonium sulfate is to increase the ionic strength of the extract solution. Precipitated proteins are removed from the solution by centrifuging them into a pellet.  Fraction which has most b-galactosidase is fractionated by substrate affinity on a chromatography column to create other more fractions.

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