In your own words, explain how the precise timing of an element's radioactive decay helps scientists find the actual age of a material? (5 points)

Answers

Answer 1

Answer:

Precise time can be studied with the help of amount of carbon in the body. By measuring the amount of carbon in the body scientist can find the actual age of a material


Related Questions

I never thought of that these statements alone are not
sidered for a grade
Answer the questions) below
A former patient comes into the dental office and states that she has recently been diagnosed with skin cancer. She demands her xrays and treatment record and claims that she was exposed to unnecessary radiat
during her visits How should the dental assistant respond? Can the dental assistant be held responsible?

Answers

Answer:

geuueieiejrjejdjjhdjsjdjsjeiei do it is custom returns and more and more than more and then send it out in a no to a good morning to kya hua hai aapko ❤️❤️ ab workouts and more ab mai

Las semillas de las plantas, especialmente las más consumidas en nuestra dieta como el trigo, el maíz, el arroz y otros cereales o las lentejas, los porotos y otras legumbres, tienen un depósito de almidón que está destinado a alimentar el embrión en las primeras etapas del desarrollo, hasta que esté en condiciones de hacer la fotosíntesis por sí solo. ¿Con qué función de los lípidos se relaciona esta adaptación? Justificar.

Answers

Answer:

lol I dont know the answer

The skin is protected by the action of cells that arise from bone marrow and migrate to the epidermis. Which cells serve this function?

Answers

Answer:

Langerhan's cells

Explanation:

The Langerhan's cells arise from the bone marrow and migrate to the epidermis. The Langerhan's cells are the body's first line of defense and play a significant role in antigen presentation. They need special stains to be visualized and are primarily found in the stratum spinosum. These are the mesenchymal origin obtained from CD34 positive stem cells of bone marrow and are part of the mononuclear phagocytic system.

Discuss the sensory neurons for vision. What are the two
types of sensory neurons for vision? Where are they located?
What are their functions in the eye? What path does visual
input take AFTER reaching the sensory neurons (be specific,
outlining the entire path to the destination point of the brain)?

Answers

Answer:

Olfactory sensory neurons (OSN).

Explanation:

Olfactory sensory neurons (OSN) are the sensory neurons that is responsible for vision. Photoreceptors and olfactory sensory neurons (OSN) are the two types of sensory neurons for vision. Both olfactory sensory neurons (OSN) and photoreceptors is responsible for the receiving of photons and enable us to see things. The right half of the visual field will travel in the left optic tract, while on the other hand, the stimuli from the left half of the visual field will pass through the right optic tract.

Answer: The two types of sensory neurones are the CONES and RODS. Their functions are better outlined below

Explanation:

The CONES and RODS are the sensory neurones ( photoreceptors) of the eye which are located in the retina.

The RODS: They are extremely sensitive and can detect light of very low intensity. They also perceive light in black and white. They, therefore, play an important role in dim light.

The CONES: They function in bright light and are responsible for colour vision.

The path visual input take AFTER reaching the sensory neurons is as follows:

--> the rods and cones are stimulated

--> A pattern of electrical impulses is sent to the brain through the optic nerve which interprets it, drawing on past experience.

The brain tells us that the object is upright and gives us it's real size and distance from the eye. We, therefore, see the object as it actually is, and not as the image formed on the retina.

Consider the following statements:
1. RNA is ribonucleic acid.
2. RNA is used for information transport (known as mRNA). Choose the correct answer from the given codes:
A Only 1
B Only 2
C Both
D Neither 1 nor 2
E None of the above

Answers

Answer:

Only A

Explanation:

RNA is used for storing and transporting information through mostly virus only..

A dead zone refers to Group of answer choices a) terrestrial areas in which excessive nitrogen fertilizer has essentially burned the soil, preventing plants and microorganisms from living there. b) oligotrophic areas in water bodies that cannot support life due to lack of nutrients. c) an ecosystem that was cleared of all vegetation for slash and burn agriculture. d) hypoxic areas in water bodies that limit marine and aquatic life.

Answers

Answer:

The correct answer is d) hypoxic areas in water bodies that limit marine and aquatic life.

Explanation:

A dead zone are oxygen-deprived regions, that is, they are large bodies of water that contain little or no oxygen, both in the depths and near the coasts in the oceans. Aquatic and marine dead zones can be caused by climate change, a product of human activity. When the temperature is high, the water does not have the same density and there is less exchange between the depths of the hydrogen peroxide and the surface water, and these no longer receive oxygen. Marine fauna, not finding the oxygen necessary for their survival, end up suffocating due to the lack of oxygen. They may also have reproductive problems and diseases, making it difficult for them to survive.

1. ¿Cuáles son las células que contiene la retina?​

Answers

Answer:

Células fotorreceptoras: Son los conos y los bastones. Transforman los impulsos luminosos en señales eléctricas.

Células bipolares de la retina. Conectan las células fotorreceptoras con las células ganglionares.

Células amacrinas. ...

Células horizontales. ...

Células ganglionares de la retina.

5. The major functions of carbohydrates irſclude
A. Structure framework. B. Storage C. Both Aan B
D . None of these​

Answers

Answer:

D

Explanation:

used to provide energy to the body

Place the steps for providing first aid for bleeding in the correct order.
Raise the wounded area above
Place a sterile bandage.
Clean the wound
Apply pressure
the heart

Answers

The steps of first aid during bleeding is as follows:

Raise the wounded area above the heartapply pressureclean the wound apply pressure.

What is first aid?

First aid is the immediate help or assistance given to Ana accident victim before the arrival of a medical doctor ofbthe person is taken to the hospital.

The steps of first aid during bleeding is as follows:

Raise the wounded area above the heartapply pressureclean the wound apply pressure.

In conclusion, the proper steps taken for first aid will prevent bleeding.

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Answer:

clean the wound

Place a sterile bandage

Apply pressure

Raise the wounded area above the heart

Explanation:

this is the correct answer on Edge

define cell and atom​

Answers

Answer:

Cell: All living organisms are made up of cells, which are the basic building components. Cells also carry the body's genetic material and have the ability to replicate themselves. Cells are made up of several components, each of which serves a particular purpose. Organelles, for example, are specialized structures that perform specific activities within the cell.

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

Atom: Protons, neutrons, and electrons are the three subatomic particles that make up an atom. The nucleus, which is made up of protons and neutrons, is at the core of the atom, while electrons float around in a tiny cloud above it.

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

hope it helps...

have a great day!!

explain water cycle with the help of diagram​

Answers

Explanation:

The water cycle is defined as a natural process of constantly recycling the water in the atmosphere. It is also known as the hydrological cycle or the hydrologic cycle. During the process of the water cycle between the earth and the atmosphere, water changes into three states of matter – solid, liquid and gas.

hope it helps.stay safe healthy and happy...

which fundamental units are involved in force do step Wise ​

Answers

Force = ma

We know, the unit that the S.I. unit of mass is Kg.

We also know that a = (v - u)/t.

We know that v = d/t and u = d/t and the S.I. unit of t(time) is s.

We know that the S.I. unit of d(displacement) is m.

So, the S.I. unit of v is m/s and the S.I. unit of u is m/s and the S.I. unit of t is s.

So, the S.I. unit of a is m/s×s or m/s²

So, the unit of force is

(unit of m) × (unit of a)

= kg × (m/s²)

= kg.m/s²

=

[tex]kg \: m \: {s}^{ - 2} [/tex]

Or more simply,

F = ma

=> F = m{(v-u)/t}

Putting units,

Newton = kg[{(m/s) - (m/s)}/s]

=> Newton = kg{(m/s)/s}

=> Newton = kg(m/s²)

=> Newton = kg.m/s²

=> Newton = kg.m.(s^-2)

Which of the following is a material?
A. Wood
B. Rigid
C. Transparent
D. Dull

Answers

Answer:

A. Wood

Explanation:

Material is a physical object (something made up of molecules, atoms etc.)

Other listed options are characteristic of that given material. For example, an iron bar is a material, but its shiny lustre is its characteristics.

The material out of the given options is wood. Hence, the correct option is (A) Wood.

Material is something that is used to produce an item or thing. It is an essential element of the natural or synthetic substances that are employed for the manufacturing of different products. Material is used in everyday life as well as in the technical industry.

It refers to a substance that can be used as a raw material or as a semi-manufactured product to make an end-product. Materials are used to create a wide range of things, including clothing, food, medicines, buildings, automobiles, and other consumer goods.

Materials can be classified based on a variety of characteristics, including their composition, structure, and properties. Types of Materials: Materials can be classified into the following categories:

1. Natural materials, which include wood, rubber, and leather

2. Synthetic materials, such as nylon and polyester

3. Semi-synthetic materials, such as rayon

4. Composite materials, which include concrete and fiberglass

5. Electronic materials, which include semiconductors and superconductors

Features of materials: Materials have some characteristics, such as a particular physical and chemical composition, density, texture, and color, that differentiate them from other substances. Furthermore, materials can have a variety of properties, including thermal conductivity, electrical conductivity, tensile strength, ductility, and malleability.

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In the diagram below, which part of the human brain coordinates balance, movement, and other muscle functions so that the body moves smoothly? A B C​

Answers

Answer:

c

Explanation:

c is the cerebellum

b is the spinal chord

a is parietal lobe

Solve the equation of mava=mbvb max5.0ml=5.2mlx0.10m

Answers

Answer:

0.104M

Explanation:

The following equation is given in this question:

mava=mbvb

Where;

ma = molarity of acid (M)

mb = molarity of base (M)

va = volume of acid (ml)

vb = volume of base (ml)

According to this inputted values;

max5.0ml=5.2mlx0.10m

ma = unknown molarity of acid

mb = 0.10M

va = 5.0ml

vb = 5.2ml

Hence, ma x 5.0ml = 5.2ml x 0.10m

5ma = 0.52

ma = 0.52 ÷ 5

ma = 0.104M

A solid reactant is placed into a beaker of a warm water. The liquid vigorously bubbles as the solid dissolves into the solution. What will most likely happen if the temperature of the liquid is slightly reduced?
More bubbles will be produced because the solution is becoming more concentrated.
Fewer bubbles will be produced because of fewer collisions of reactant molecules.
The solid will get smaller at a faster rate because of more collisions of reactant molecules.
The solid will get larger at a slower rate because precipitate is coming out of the solution.

Answers

Answer: Fewer bubbles will be produced because of fewer collisions of reactant molecules.

Answer:

B: Fewer bubbles will be produced because of fewer collisions of reactant molecules.

Innate talents or gifts enhanced through study and practice are:
A-drawbacks.
B-Holland's occupational types.
C-priorities.
D-abilities.

Answers

Answer:

D) Abilities

Explanation:

If you have a talent or a gift that is enhanced through study then you have the abilities to do so to be able to practice

Innate talents or gifts enhanced through study and practice are abilities. The correct option is D.

What are innate talents?

Innate talents are those talents that are present in the organism from birth, They are not learned or observed from outside. These abilities are only enhanced as we grow up. They are already present in the body.

They are the natural, talents that with we grow up. Innate talents are also called natural skills. They are genetically present in our bodies. Some people are born with natural potential and skills. But without hard work and practice, these skills would not work.

Abilities are the things that are used by the organism to perform activities. Every organism has some abilities.

Thus, the correct option is D. abilities.

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Indicate whether each of the following descriptions is true of microtubules (MT), microfilaments (MF), intermediate filaments (IF), or none of these (N). More than one response may be appropriate for some statements.
(a) Involved in muscle contraction.
(b) Involved in the movement of cilia and flagella.
(c) More important for chromosome movements than for cytokinesis.
(d) More important for cytokinesis than for chromosome movements in animal cells.
(e) Most likely to remain when cells are treated with solutions of nonionic detergents or solutions of high ionic strength.
(f) Structurally similar proteins are found in bacterial cells.
(g) Their subunits can bind and catalyze hydrolysis of phosphonucleotides.
(h) Can be detected by immunofluorescence microscopy.
(i) Play well-documented roles in cell movement.
(j) The fundamental repeating subunit is a dimer.
MT,
MF,
IF,
MT and MF,
MT and IF ,
MT, IF, MF.

Answers

Answer:

(a) Microfilaments

(b) Microtubules

(c) Microtubules

(d) Microfilaments

(e) Intermediate filaments

(f) Microfilaments, intermediate filaments, microtubules

(g) Microfilaments, microtubules

(h) Microfilaments, intermediate filaments, microtubules

(i) Microtubules, microfilaments

(j) Microtubules

Explanation:

Microtubules (MTs) are dimers of the protein tubulin (alpha- and beta-tubulin subunits) and they are major components of the cytoskeleton. MTs play diverse cellular roles including, mechanical support (cytoskeleton), transport, motility, chromosome segregation, etc. Microfilaments (MFs) are protein filaments that also form part of the cytoskeleton in eukaryotic cells. MFs consist of G-actin monomers assembled in linear actin polymers, and their functions include mechanical support, cytokinesis, changes in cell shape, amoeboid movement, endocytosis and exocytosis, etc. MFs associate with the protein myosin to generate muscle contractions. Actin filaments/MTs assembly from monomeric actin/tubulin is caused due to energy expenditure, where ATP/GTP bound to actin/tubulin is hydrolyzed during polymerization. Finally, intermediate filaments (IFs) are a type of cytoskeletal element composed of a heterogeneous group of structural elements, and they are not found in all eukaryotes. The primary function of the IFs is to contribute to the mechanical support for the plasma membrane where these filaments come into contact with other cells and/or with the extracellular matrix. The IFs are not directly involved in cell movement. All 3 types of cytoskeletal elements (microfilaments, intermediate filaments, microtubules) can be visualized by fluorescence microscopy when cells express chimeric MT/IF/MF.–GFP fusion proteins.

What’s the main reason why cell specialization is important

Answers

Explanation:

because we know that cell makes up organ and organ makes organ system and this system makes organism....cell is also the structural and functional unit of life it there were no cell specialization then mitosis and meosis wont take place neither cell division

If all 15 presynaptic neurons stimulate the post-synaptic neuron at the same time, will an action potential be produced?

Answers

Answer:

Yes

Explanation:

If all 15 presynaptic neurons stimulate the post-synaptic neuron at the same time, the action potential will be produced. In a chemical synapse, an action potential in the presynaptic neuron is responsible for the release of a chemical messenger known as neurotransmitter. After this, the neurotransmitter diffuses across the synapse and binds to the postsynaptic cell so we can say that potential can be produced.

Which of the following explains why the Midwest is not suffering as severe damage from acid rain as are the northeastern states?
a. Midwest has few sources of acid rain-forming pollutants.
b. pH of rainfall in Midwest is significantly higher than that in the Northeast.
c. soils in the Midwest have a higher buffering capacity than do those in the Northeast.
d. soils in the Midwest have a lower buffering capacity than do those in the Northeast.
e. Midwestern soils have lower concentrations of toxic metals to be leached into watersheds.

Answers

Answer:

a. Midwest has few sources of acid rain-forming pollutants.

Explanation:

Midwest has few sources of acid rain-forming pollutants because Midwest has  less number of factories which produces less pollution. Farming, mining, and manufacturing of different products are the major industries Midwest. Other industries like transportation, finance, and machinery are also important for the economy of Midwest. Due to less number of factories less amount of pollutants goes to the atmosphere and will not cause acid rain.

What is a group of microscopic unicellular organisms

Answers

Protists are a diverse collection of organisms. While exceptions exist, they are primarily microscopic and unicellular, or made up of a single cell. The cells of protists are highly organized with a nucleus and specialized cellular machinery called organelles.

In the aerobic metabolism of proteins by chemoheterotrophs (e.g., E. coli and you):____.
A. Proteins are broken down into smaller peptides and eventually into amino acids by proteases (peptidases).
B. Certain amino acids may be converted to pyruvate.
C. Certain amino acids may be converted to intermediates (e.g. oxaloacetate) of the Krebs cycle.
D. Certain amino acids may be converted to acetyl-CoA.
E. All of the above are true.

Answers

The answer is A because
A) proteins are broken down into smaller peptides and eventually into amino acids by proteases

define cell and atom​

Answers

Answer:

cell is the structural and functional unit of live.

Atom are the smallest particle of chemical element

Activity 3: Direction: Study the picture. Write the phases of the moon 1 new moon O first quarter O MOON PHASES last quarter waning crescent woving crescent Waning gibbous working globos​

Answers

Answer:

1.full moon

2.waxing gibbous

3.first quarter

4.waning gibbous

5.new moon

6.wabing cresent

7.last quarter

8.waxing cresent

what's the target cells of melatonin?​

Answers

Explanation:

The suprachiasmatic nucleus appears as a target of melatonin in mammals.The pineal hormone may thus be involved in a feedback loop of the mammalian photoneuroendocrine system.

Because the bell jar in the model lung cannot move, any changes in volume are a result solely of the movement of the rubber diaphragm. Match the position of the rubber diaphragm to changes in volume and pressure inside the bell jar and balloon size.

a. Galloons inflate
b. Balloons deflate
c. Volume inside bell jar increases
d. Volume inside bell jar decreases
e. Pressure inside bell jar decreases
f. Pressure inside bell jar increases

1. Rubber diaphragm up
2. Rubber diaphragm down

Answers

Answer:

1. Rubber diaphragm up-

b. Balloons deflate

d. Volume inside bell jar decreases

f. Pressure inside bell jar increases

2. Rubber diaphragm down-

a. Galloons inflate

c. Volume inside bell jar increases

e. Pressure inside bell jar decreases

Explanation:

The rubber diaphragm is the model to demonstart the various parts of the respiratory system and how they move during breathing process. In case of it moves down, the rubber diaphragm is stretched, the volume inside the bell jar increases which causes presursue decrease.

Balloon inhale or sucks in the air from outside and gets inflate. this increases the volume in the jar. The pressure is increased

define cell and atom​

Answers

Answer:

hope it is helpful to you

Reviewing video surveillance is part of which alert food defense

Answers

Answer:

The correct answer is - look.

Explanation:

Alert is an acronym that is used in food defense that stands for Assure, Look, Employees, Reports, and Threat. It helps in increasing the awareness of food safety in food industries.

The Look is the type of alert that includes video surveillance in the food industry or store to check and maintain food safety and security. It helps in looking during and after the food defense.

The accurate solution is =look for is part of which alert food defense.

Alert is an acronym this is utilized in meals protection that stands for Assure, Look, Employees, Reports, and Threat. It facilitates in growing the attention of meals protection in meals industries.

The Look is the sort of alert that consists of video surveillance withinside the meals enterprise or shop to test and keep meals protection and security. It facilitates in searching in the course of and after the meals protection.

What is food defense?

Food protection is the safety of meals merchandise from infection or adulteration supposed to reason public fitness damage or financial disruption.

Thus it is well expailned.

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Natural selection is most likely to be the cause of a change in a population's
allele frequencies when:
A. the ecosystem experiences few disturbances,
B. the population drops below its carrying capacity.
C. the predators are removed from the ecosystem,
D. the population has reached its carrying capacity.
PLEASE HELP URGENT

Answers

Answer:handheld c

Explanation:bend c smlOc

C is probably the right answer to me
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