What objects did scientists use to help determine the age of the Earth? *

Answers

Answer 1
the best estimate for earth age is based on radiometric dating of fragment from the canyon dialo iron meteorite from the fragments scientist calculated the relative abundance of element that's for maid as radioactive Uranium decayed over billion of years

Related Questions

If a strand of DNA has the nitrogen base sequence, GCTAGATGCG, what will be
the sequence of the complementary strand?

Answers

Answer:

CGATCTACGC

Explanation:

The complementary strand of DNA to GCTAGATGCG is CGATCTAGCT.

The nitrogen bases in DNA are complementary to each other. This means that adenine (A) always pairs with thymine (T), and guanine (G) always pairs with cytosine (C).

The strand of DNA GCTAGATGCG has the following sequence of nitrogen bases:

G - guanineC - cytosineT - thymineA - adenineG - guanineA - adenineC - cytosineG - guanine

The complementary strand of DNA will have the following sequence of nitrogen bases:

C - cytosineG - guanineA - adenineT - thymineC - cytosineT - thymineG - guanineC - cytosine

The complementary strand is created by pairing the nitrogen bases in the original strand with their complementary bases. So, the guanine in the original strand pairs with the cytosine in the complementary strand, the cytosine in the original strand pairs with the guanine in the complementary strand, and so on.

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The relationship that occurs between an orchid attached on a narra tree could be
classified as Commensalism and Parasitism. True or false?

Answers

Answer:

Yes, it's True

Explanation:

A parasitic relationship helps one of the species involved in the relationship, but harms the other organism in the process of it growing. It is a symbiotic relationship and would be classified as Commensalism. Most of the orchids are epiphytes, so they tend to grow on other plants. hope you understand. Fighting!

The relationship that occurs between an orchid attached on a narra tree could be classified as Commensalism. Thus, the given statement is true.

What is Commensalism?

Commensalism is a long-term biological interaction or symbiosis in which the members of one species gain benefits which help them in survival while those of the other species are neither benefitted nor are harmed from the association.

In contrast with mutualism, in which both the organisms benefit from each other and amensalism, where one species is harmed while the other species is unaffected and that of parasitism, where one species is harmed and the other species benefitted.

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A dichotomouys key is used to identify a plant. 1a. Leaves are spiny ......................Pinus taeda 1b. Leaves are broad..................... Go to 2 2a. Single leaf..........................Go to 3 2b. Many leaves....................... Go to 4 3a. Leaf edge is smooth..............Cornus florida 3b. Lead edge is rough...............Ulmus americana 4a. Leaflet edges are smooth........Albizia julibrissin 4b. Leaflet edges are rough.........Juglans nigra A plant has many broad leaves with rough edges. What type of plant is this? (1 point)

albizia julibrissin
pinus taeda
cornus florida
juglans nigra

Answers

Answer:

juglans nigra

Explanation:

I did my research and its correct I finished the quiz

1 B

2 C

3 D

4 C

5 A

The plant identified by the dichotomous key is juglans nigra.

What is a dichotomous key?

A dichotomous key is a tool used to identify any plants and animals in the ecosystem.

They are identified by their morphological traits.

The key is made up of a set of paired assertions or clues about the qualities or attributes of the organisms.

It serves as a step-by-step guide to identifying each object.

Thus, the correct option is D, juglans nigra.

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What would happen if there was too much Carbon Dioxide in the atmosphere? What if there were no processes to pull Carbon
Dioxide out of the atmosphere?

Answers

We would die because if humans take in to much Carbon Dioxide but no oxygen it would become harder to breathe CD poisoning can effect the central nervous system. The earth would turn very hot and increase the process of global warming

What's the role that oysters play in keeping the ratio of floating algae to sea floor algae levels of the bay healthy

Answers

Answer:

Oysters were keeping the nutrient levels relatively stable in the bay by filtering the nutrient sewage, animal waste, and fertilizer that was running into the bay.

Explanation:

How does an organism obtain CO2, H2O, and energy
to undergo photosynthesis?

Answers

Answer:

To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.

Explanation:

By taking in water (H2O) through the roots, carbon dioxide (CO2) from the air, and light energy from the Sun, plants can perform photosynthesis to make glucose (sugars) and oxygen (O2).

How can you determine the number of bonds an atom can make

Answers

Answer:

The number of bonds for a neutral atom is equal to the number of electrons in the full valence shell (2 or 8 electrons) minus the number of valence electrons. This method works because each covalent bond that an atom forms adds another electron to an atoms valence shell without changing its charge.

What happens during the pathway of glycolysis?

A. Glucose is broken down into private

B. Carbon dioxide is produced

C. More ATP is consumed than is produced.

D. Lactic acid is produced

Answers

Answer:

the correct answer is A :Glucose is broken down into pyruvate

Answer:

If I'm correct, the glucose is broken down into pyruvate and energy.

Explanation:

I hope this helps! ^^

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Neurons that respond to specific types of lines are examples of:
A. figure detectors.
B. top-down processors.
C. feature detectors.
D. figure processors.

Answers

Answer:

C

Explanation:

Neurons that respond to certain types of lines are examples of feature detectors found in Option C. Neurons are the monomeric units of the nervous system that play an important role in transmission.

   

What is the importance of the neuron?

The neuron is a unit in which the message is transmitted from the neuron to another neuron, and this can be done by either chemical signaling or by electric signaling. The neuron receives sensory stimuli from the sensory organ and transmits them to the spinal cord.

Later, the message from the spinal cord is sent to the motor organs, and the whole pathway of the neuron signaling from the sensory to the motor organ is called the reflex arc. The neuron takes part in the signaling process so that the muscle can function, regulate the contraction relaxation, and perform many other functions.

Hence, neurons that respond to certain types of lines are examples of feature detectors found in Option C.

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The Milky Way galaxy was given its name because of what it looks like when viewed from Earth.
True False

Answers

Answer:

false. we cant see the whole galaxy from earth.

Answer:

the answer is false

Explanation:

we can't see the milky way (galaxy) from earth, its impossible since its so far away. unless we used a telescope maybe, not sure but for this question its false. I hope this helped!

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HELP ASAP PLS IF U ANSWER U GET 40 POINTS THANKS

Answers

Explanation:

The grass help feeds the baboon. This means the baboon will have to poop out the grass. Then the dung bettle feeds off of that poop.

the frequency of a wave in a stretched string depends on the length L, tension T and linear density m with dimension ML-1 . deduce the formula for f in terms of L , T and M using dimensional analysis​

Answers

Answer:

[tex]f = \frac{1 }{L}\sqrt{\frac{T}{m} }[/tex]

Explanation:

Let the frequency ,

[tex]f = L^{x}T^{y}m^{z}[/tex]

Now the unit of frequency is hertz = s⁻¹ = T⁻¹ where T is time, tension T = kgm/s² = MLT⁻¹ and linear density m = kg/m = ML⁻¹.

So,

[tex]T^{-1} = L^{x}[MLT^{-2} ]^{y}[ML^{-1} ]^{z}\\[/tex]

collecting the like bases, we have

[tex]T^{-1} = [L^{x + y -z}][M^{y + z} ][T^{-2y} ] \\L^{0} M^{0} T^{-1} = [L^{x + y -z}][M^{y + z} ][T^{-2y} ][/tex]

Equating powers on both sides, we have

x + y - z = 0  (1)

y + z = 0       (2)

-2y = -1         (3)

From (3), y = 1/2

From (2), z = -y = -1/2

Substituting y and z into (1), we have

x + y - z = 0

x + 1/2 - (-1/2) = 0

x + 1/2 + 1/2 = 0

x + 1 = 0

x = -1

So,

[tex]f = L^{x}T^{y}m^{z}\\f = L^{-1}T^{\frac{1}{2} }m^{\frac{-1}{2} }[/tex]

[tex]f = \frac{1 }{L}\sqrt{\frac{T}{m} }[/tex]

What is true about the insanity defense?

It is defined in the Diagnostic and Statistical Manual of Mental Disorders.
It can be used only if a person is diagnosed with a specific disorder from the DSM.
It is a legal term used to determine if a person can be held accountable for a crime.
It is a legal term that helps to determine if a person committed a crime or not.
It cannot be used if a person was previously found to be responsible for a different crime.

Answers

It is a legal term used to determine if a person can be held accountable for a crime

It's a legal term used to determine if a person can be held accountable for a crime. Hope this helps; have a wonderful day.

Suppose the phloem of a seed plant is damaged and does not function properly.
How will this most directly affect the plant?

Answers

Answer:

Food will not be carried away from the leaves

Explanation:

what are the pros and cons of online school​

Answers

Answer:

The Pros and Cons of Studying Online

Pro: Increased Flexibility. The biggest advantage to studying online is the increase in flexibility. ...

Con: Reputation. Many firms and institutions are quick to dismiss an online education. ...

Pro: Ease of Access. ...

Con: Lack of Social Interaction. ...

Pro: More Affordable. ...

Con: Fewer Courses.

Pros of Online Schools:

Time flexibility.

Availability.

24/7 access to course material..

Location flexibility.

Zero commute.

Self-Direction.

Multi-media presentations.

Variety of course options.

Cons of Online Schools:

Limited interaction with instructor.

Technology requirements.

Social interaction.

Campus environment.

Time management.

Stigma.

Credit transfer.

Financial aid.

Have a wonderful day!

If you wanted to find an ant's stomach, where would
you look?
a. Inside its head
b. Inside its cephalothorax
c. Inside its thorax
d. Inside its abdomen

Answers

Answer:

d. Inside its abdomen

Explanation:

Hope this helps!

D, inside its abdomen

Choose which statement best describes an element.

A. Anything that takes up space

B. A pure substance that cannot be broken down into other substances by chemical means.

C. Water

D. Atom has a nucleus with neutrons and protons in it.​

Answers

Answer:

B

Explanation:

Elements are pure substances that cannot be broken down into other substances by chemical means .

What does the brain stem do?

Answers

Help you out with anything you’re having trouble with

Answer:

It connects the rest of the brain to the spinal cord, which runs down your neck and back. The brain stem is in charge of all the functions your body needs to stay alive, like breathing air, digesting food, and circulating blood.

Explanation:

Please help due in 10 minutes!
Explain how genetic drift of alleles in a small population- and- describe 2 real world examples of genetic drift (I.e. The Founder Effect and The Bottleneck Effect)

Answers

Answer:A small population is formed with a larger population.

Explanation:The population don’t represent the genetic diversity’s of the original

Population, and there smaller size mean they may experience strong drift of generations.

Drag the tiles to the correct boxes to complete the pairs.
Match the mRNA sequences to their DNA sequences.

Answers

1.) UUUUUAACG
2.) CCGAAAUGU
3.) AUUACGCAU
4.) GAUCAUUAC

What do we call an organism that is not native to an environment, but is able to thrive anyway?

Answers

Answer:

An invasive species

Explanation:

Invasive species come from other environments, many times on accident, but usually thrive so much that they end up taking over and starving other native creatures by taking the resources. Hope this helps! (Brainliest appreciated :))

Please help only 2 questions, multiple choice

Answers

The first answer is homeostasis so d

The second answer is organelle so c

7. Which of the following is not an example of an abiotic factor?
O Water
O Soil
O Disease
O Air
Please help

Answers

Answer:

Disease

Explanation:

Water, Soil and Air are all biotic except for disease.

Yes that’s right absolutely

what is combination reaction?

Answers

COMBINATION REACTION:

Combination reaction is a reaction where two or more elements or compounds combine to form a single compound. Such reactions are represented by equations of the following form: X + Y → XY. The combination of two or more elements to form one compound is called combination reaction

An example could be lithium reacting with sulfur to give lithium sulfide. When magnesium burns in air, the atoms of the metal combine with the gas oxygen to produce magnesium oxide.

Does mass alone determine whether an object will float or sink? Explain

Answers

Answer:

yes because if the mass is heavy it gonna sink, if its light its gonna float

Explanation:

Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow. What is this an example of

Answers

Answer:This is an example of asexual reproduction.

Explanation:

Reproduction is defined as the ability of living organisms to produce offspring, that is, new individuals of their type. Living organisms have developed many methods of reproducing. These can be either ASEXUAL or SEXUAL.

Asexual reproduction: In asexual reproduction, an individual produces an offspring by itself, that is, only one parent is present. This type of reproduction is common among flowering plants. Examples of asexual reproduction includes:

--> Fission

--> Budding

--> Spore formation

--> Fragmentation and

--> Vegetative propagation.

The sweet potato vine is reproduced by an asexual means known as vegetative propagation. Here, a new plant grows from any portion of an old one other than the seeds. When stem cutting are taken from the vine, new storage roots are formed within few days.

Brady took a cutting from a sweet potato vine in his family garden and placed the vine in a small vase filled with water. After about a week, tiny roots had begun to grow which is an example of - Asexual reproduction.

Asexual reproductionis a type of reproduction that does not involve the fusion of gametes or change in the number of chromosomes.Examples of asexual reproduction include:   Fission  Budding  Spore formation  Fragmentation and  Vegetative propagation.In the given scenario sweet potato is cultivated by vegetative propagation.Brady takes stem cuttings from the vines, which then root and form new storage roots.Sweet potatoes are relatively easy to propagate by rooting vine cuttings directly in the ground or in a well-drained rooting media

Thus, The given case shows an example of - asexual reproductions.

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Which amino acids are coded for from the DNA sequence TACCAGCCA?
methionine, valine, and glycine


methionine, glutamine, and alanine


methionine, valine, and aspartic acid


arginine, histidine, and cysteine
Where do the instructions for building a protein originally come from?
tRNA


rRNA


DNA


mRNA
A _______________ is composed of a series of amino acids.
Molecule


Protein


Nucleotide


Cell

Answers

Explanation:

DNA

The instructions for building a protein originally come from DNA, which is the store for all hereditary information.

A protein is composed of a series of amino acid.

1. How many kinds of nitrogen bases does a DNA molecule have?
A. 2
B. 3
C. 4.
D. 1

Answers

Answer:

4.

Explanation:

Adenine, Thymine, Cytosine, and Guanine

(In RNA Thymine is replaced with Uracil)

Why would the atomic number be better to identify an element than the atomic mass?

Answers

Answer:

because the atomic number tells you how many protons and neutrons there are

Explanation:

Answer fast please. !!!!!!!!!!!!!!!!!!A geologist who needs to curricula to rock formations in different areas can match exposed rock layers
true or false

Answers

Answer:

A geologist who needed to correlate two rock formations in different areas could match exposed rock layers? A geologist who needed to correlate two rock formations in different areas could match exposed rock layers. TRUE.Explanation:

Answer:

true

Explanation:

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How does Nurture influence development in early childhood? in order to use an expert from a movie in your history class you must pay a royalty fee. the base fee is 50 and an additional .25 cents per minute of the film. the equation for this is? HELPPPPP 1.) what does this picture tell you about the value of the mark 2.)how did this happen? 3.) explain how you think people in German felt about this. say something so mean to me idc just say whats on your mind broskis list four disadvantages of lowland k a i ran 3/5 of a kilometer yesterday and today he ran 6 times as far so how much did he run today A car travellingat 35 m/s has akinetic energyof 500,000 J.what is themass?I NEED HELP FIGURING THIS OUT please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!will give brainliest!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! How do dog whistles work? Which of the following European countries did NOT have a significant impact in the colonization of North Americaaccording to your reading?FrancePortugalSpainBritain What is the area, in square inches, of the trapezoid below? 15.7 in 8 in 6.6 in which fraction is 16/64 in lowest terms PLEASE SHOW HOW U DID UR PROBLEM C. Marisa is suggesting that she and Josefina do the same things. Write the suggestionMarisa gives, using nosotros commands. Follow the model. Help me! Pleaseeeeeeeeeeeeee The graph shows your elevation during a run. Which statement is true about your run?A- You were running uphill for the first 15 minutes.B- You were running uphill between 10 and 20 minutes into the run.C- You were running downhill for the last 10 minutea.D- You were running downhill the first 15 minutes. menton esuna palabra grabe o aguda Is parallelogram VWXY a rhombus? SOMEONE PLEASE HELP ME AND ANSWER THIS QUESTION CORRECTLY I WILL MAKE YOU THE BRAINLIEST, GIVE YOU A GOOD RATE, PLEASE ASWER THIS ASAPPPPPPPPP!!!!!!!!!!! I NEED HELP ASAPPPPPPPPPPP!!!!!!!!!! ALSO PLEASE SHOW YOUR WORK ASAPPPPPPP!!!!!!!!!!!! A biologist grow a plant inside a sealed glass jar. The plant keeps growing for several days but then dies. At the start of the experiment, the jar had a mass of 3 kg. At the end of the experiment, it still had a mass of 3 kg. Which of the following explains why the mass was the same? * (1 Point) The plant created mass. The jar's temperature was the same as before. The jar was sealed and new mass could not enter. The plant did not grow enough to add mass to the jar. Can you show me the steps involved in solving this question?