What methods of dating do scientist use to study Earth's history? (Two part answer)

Answers

Answer 1
researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.

Related Questions

can you create a punnett square for this question?

Answers

Answer:

Explanation:

HERE U GO

This is the punnet square

What controls the timing of The Great Migration?

Answers

Answer:

The best time to see the Great Migration is during the dry season, between July and early October. It's warm, weather is stable, and animals are abundant. The sparse vegetation and dried-up waterways force the animals to head up north to find food and drink.

Explanation:

3
7
TIME REMAINING
57:02
The graph shows tide heights from a location in Canada.
Based on the trend shown by the data, which prediction
can be made?
Tide Height in Bay of Fundy, CA
14
12
O After 10:48 p.m., the tide height will be less than 10
m.
O The next high tide height will be higher than 12 m.
O After 10:48 p.m., the tide height will continue to fall.
If the graph continued, the next line would go down.
10-
8-
Tide Height (m)
6
2
O
3:25 AM
3:48 PM
9:56 PM
Po 4:14 AM)
10:22 AM
4:39 PM
10:48 PM

Answers

Answer:

c

Explanation:

did the test

Please identify the parts. I will mark brainlist

Answers

Answer:

a) mitochondria

b) centriole

c) nucleus

d) endoplasmic reticulum

e) cell membrane

Hope i helped and have a awesomly amazing day. :)))

tRNA is the molecule that brings the appropriate _______ _______ to the mRNA using an anticodon.
fill in the blank

Answers

I think the answer is cytoplasm :))

IF A CUBE IS 1CM ON A SIDE, CALCULATE ITS SURFACE AREA. HINT WRITE 2 points

OUT FORMULA FOR SURFACE AREA OF A CUBE.*

8CM2

8CM3

6CM3

6CM2

2 points

FACURE IS 1CM ON A SIDE, CALCULATE ITS VOLUME. HINT WRITE OUT

Answers

Answer:

Surface area of the cube = 6cm²

Volume of the cube = 1cm³

Explanation:

The surface area of a cube, which refers to the sum of all the areas of the faces of the cube can be calculated using the formula:

S.A = 6 × a²

That is; a² + a² + a² + a² + a² + a²

Where;

a = length of a side of a cube

a² = area of one side of a cube

Note that, a cube has 6 faces

According to this question, a cube has a length of 1cm on each side.

Hence, S.A = 6 × 1²

S.A = 6 × 1

S.A = 6cm²

Volume of the cube can be calculated using the formula: a³

Where a = 1

Volume = 1 × 1 × 1

Volume = 1cm³

Which alele combination represents a male who has an X-linked recessive disorder?

Answers

Explanation:

The allele combination would most likely be xx if recessive

List two examples of an abiotic factor and a biotic factor interacting.

Example: mouse breathing air.

Answers

Answer:

human using hammer,duck drinking water

Explanation:

Answer:

f

Explanation:

Complete the following activity. Compare 3 different pets.
You and your roommate have decide to purchase a pet. Both of you are in college and live in an apartment.
1. Choose a pet which would best fit your situation and your needs.
2. Consider the following questions.
A. What type of pet should you get?
B. Why do you want to purchase a pet?
C. How will the animal be taken care of?
D. What animals are allowed in the apartment?
E. How much money do you want to spend on the pet?
F. Where will you get the pet?
3. Conduct research on the type of pet you and your roommate would like to purchase. Compare several different options. Consider which option is the most reasonable and how well this options fits your wants, needs and budget.

Answers

Answer:

the answer to this question is A

Besides energy, what else is food used for?

Answers

Answer:

Food helps us to repair muscle and build DNA

Food can help your body insulate itself and improve your health

Food helps your brain.

Explanation:

hope this helps

Why would scientists want to monitor the migration habits of red-winged blackbirds in MA?

Answers

Answer:

Blackbird and Oriole : Varieties of swamps, shrubs, swamps, and dry grasses; foraging in arable land and water. The species is most commonly found in freshwater marshes, but in wooded or bushy marshes, weed fields, hay fields, and salt marshes also have levels on the upper edge. Usually foraging in other open habitats, such as fields and tidal flats; outside the breeding season, flocks of chickens gather in farmlands, pastures and feedlots.

Among the birds we are most familiar with, the red wings seem to sing nasal sounds on every swamp and wetland from coast to coast. They are particularly bold, and a few often attack larger birds, such as eagles or crows, and they fly over their nesting areas. When singing, the male's red shoulder patches are hidden under the body feathers most of the time, which is very beautiful. Outside the nesting season, red wings sometimes live in large areas.

That's why. Hope it helps.

Frida wants to measure the volume of a stone. She starts by pouring 473 mL of water into a large measuring cup. Then she drops in the stone. Now the water measures 499 mL. What is the volume of the stone?

A
15 g

B
26 mL

C
26 cm^3
​3
​​

D
62 cm^3
​3
​​
*don't respond if you don't know, irrelevant answers will be reported and removed*

Answers

Answer:

C

Explanation:

You subtract 499-473. That shows how much water is displaced and the volume of the stone. Hope this helps and have a great day!

Frida wants to measure the volume of a stone. The correct volume is B

The volume of the stone is 26 mL.

What is volume?

The initial volume = 473 mL

The final volume = 499 mL.

The final volume   − Initial volume

= 499 −  473

= 26 mL.

Therefore, Frida wants to measure the volume of a stone. The correct volume is B .The volume of the stone is 26 mL.

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Name the following blood vessels ABC

Answers

Answer:

Arteries, Veins, and Capillaries

Explanation:

Listed in blue, please help!! Is biology and chemistry two different things and why?

Answers

Answer:

Yes they are two different things!

Explanation:

Chemistry is more basic to existence-it is the study of the composition of matter and all associated structures, properties, and reactions. This includes, but is not limited to, biological matter. Biology meanwhile is focused entirely on biological organisms.

Answer: Yes they are

Explanation: Biology is the study of life and the ecosystems of what surrounds it. Biology consists of anatomy marine biology and the spheres of the earth. Chemistry has to do with our elements take gold for example it is known as Au or Aurum. Element 79 with an atomic mass of 196.96657u you will learn this in chemistry. Chemistry makes biology like a scratch on the surface because in chemistry you are going deep into the elements by classifications and the periodic table. You will be able to learn about dissolvents and why salt dissolves in water. You will learn about molecules in both fields. In general, biology is more the basis of life and chemistry is the more complexity of life.

what's the second longest phase in the cell cycle?

Answers

Interphase is the second
Mitosis right after interphase

Define crossing over?

Answers

Answer:

Crossing over is the swapping of genetic material that occurs in the germ line. During the formation of egg and sperm cells, also known as meiosis, paired chromosomes from each parent align so that similar DNA sequences from the paired chromosomes cross over one another.

Explanation:

IF YOU HAVE DONE ODSSEYWARE PLEASE HELP AND GIVE THE THE ANSWER

Choose all the answers that apply.
Mudslides can be caused by _____.

earthquakes

volcanoes

tsunamis

weathering

Answers

Earthquakes and weathering

what happens to cells that do not take up the recombinant plasmid​

Answers

Explanation:

they are not transformed , and they die soon after they are still transfo4med because the nearby cells are transformed they change to a new cell with new characteristics. THEY ARE NOT TRANSFORMED AND THEIR CHARACTERISTICS ARE NIT ALTERED

Help please describe how the biotic factors taiga differ from those in the rainforest

Answers

Answer: biotic factors include plants and animals. So, the rainforest animals are more adapted to warmer weather meaning they have less fur and are built for warmer weather. The plants in a rainforest need lots of water to survive as well as carbon dioxide so they have large, wide leaves.

In a Taiga biome, the animals have more fur and adaptations to help them to survive in colder weather. The plants primarily consist of fir and pine trees, which have waxy, needle-like leaves to retain water as well. The trees also dont lose their leaves in the winter.

Explanation:

The biotic factors are significantly found to be different in two types of habitation such as taiga and rainforests.

What are biotic factors?

Biotic factors may be defined as those factors that are directly associated with living forms. It includes producers, consumers (herbivores, carnivores, and omnivores), decomposers, etc. It may also be characterized as any living thing that has a significant effect on an ecosystem.

The animals in the rainforests adapted to the average temperature that remains warm throughout the year and must be frost-free. So, the animals generally have less fur. While the plants require more water in order to survive and reproduce at a higher temperature.

The climatic conditions on taiga are actually cold as compared to the rainforests. So, the animals possess fur appearance in order to survive in low temperatures. The plants compose of waxy structures and needle-like leaves in order to retain water. The number of leaves remains the same throughout the year.

Therefore, the biotic factors are significantly found to be different in two types of habitation such as taiga and rainforests.

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in order for a liquid to turn into a solid,would you transfer energy in or out?What happens to speed of molecules

Answers

the molecules tend to move slower than a liquid









right answer

Answer:

transfer energy out and the speed of the molecules would decrease and the particles would vibrate less

Explanation:

In order to dilute a solution, you need to

A-add more of the solid

B-add more water

C-find the mass

D-find the volume

Answers

B: add more water Explanation: it makes sense

The cell membrane functions most like a(n)
A.) security guard
B.) brick wall
C.) painter
D.) delivery truck

Answers

Answer:

It's A, a security guard

Explanation:

The cell membrane is like a security guard because it controls what goes in and out of the cell.

Answer:

A

Explanation:

Oswald Avery helped build our understanding of genetics by showing that:

A viruses cannot infect cells.
B. DNA transformed bacterial cells.
C traits cannot be inherited.
D. proteins move between bacterial cells.

Answers

B is the correct answer

Select all the types of transport that DO NOT require ATP
Active Transport
Passive Transport
Diffusion
Endocytosis
Exocytosis
Osmosis
Facilitated Diffusion

Answers

All types of passive transport do not require ATP:
-passive transport
-diffusion
-osmosis
-facilitated diffusion

Answer:

diffusion, osmosis and facilitated diffusion

When a cell is preparing to divide, it should not manufacture a protein that will cause it to divide early. The need for cells to follow a certain order during division is the reason cells-
A) Regulate gene expression
B) divide very slowly
C) Do Not manufacture enzymes to divide proteins
D) signal protein Not to stimulate cell division

Answers

Answer:d

Explanation:

When a cell is preparing to divide, it should not manufacture a protein that will cause it to divide early. The need for cells to follow a certain order during division is the reason cells signal protein Not to stimulate cell division

What is cell division ?

In a living organism there are two types of cell such as somatic cell and germinal cell which undergo the process of cell division.

Cell division occur which can be up two types such as mitosis and meiosis where mitosis is called as equatorial cell division as the number of daughter cell is equal to number of parent cell.

meiosis is called as reductional division as the number of daughter cell is half of the parent cell, occur in germ cell.

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Can you help me? Please

Answers

1. pH (fun fact, it means potention of hydrogen )

2. H+

3. hydronium ion

4. 7

5. 7

6. OH-

7. acidic

8. alkaline

What would be an appropriate key for these traits

Answers

Answer:

The correct answer is -

TT - short    BB - blue eyes

Tt - short tail  Bb - blue eyes

tt - no tail bb - brown eyes

Explanation:

In this given question it is stated that short tails of ribbits are dominant over the no tail trait of the rabbits and similarly blue eyes trait of the rabbits is also dominant over the brown-eye trait.

A dominant trait is represented by a capital letter and a recessive trait is represented by the small letter so for the tails alleles will be denoted as T and t, and for the eyes, the alleles would be B for blue and b for brown.

The key for these traits would be-

TT - short    BB - blue eyes, due to both dominant allele,

Tt - short tail  Bb - blue eyes, due to dominant allele masks the recessive allele

tt - no tail bb - brown eyes, due to both alleles are recessive

What prediction can you make about future levels
of carbon dioxide (CO2) in the atmosphere?

Answers

Answer:

they will increase

Explanation:

constant increase in population is leading to increased demand for land. hence more trees will be cut down for land hence high co2 levels due to reduced photosynthesis.

high popn. also leads to more pollution hence high co2 conc.

Which of the following statements is true?
Only somatic mutations are important to evolution because they can be inherited.
Acquired mutations are passed down from parent to offspring.
O Hereditary mutations are caused by external factors, such as radiation.
O Mutations are the most fundamental way to add new genes to a gene pool.

Answers

Answer: A,B, and C.) Only somatic mutations are important to evolution because they can be inherited. Acquired mutations are passed down from parent to offspring. Hereditary mutations are caused by external factors, such as radiation.

Explanation:

The true statement is: Mutations are the most fundamental way to add new genes to a gene pool.

A mutation is any alteration in the genetic material (i.e. nucleotide sequence) of the genome of an organism.  

Mutations can be caused by both external (e.g., UV light) and endogenous (e.g., oxidative DNA damage) factors.

Mutation can be divided into somatic (body) cells and germline (gamete) cells. Only germline mutations can be inherited and pass from parents to offspring.

Acquired mutations are genetic alterations that are not present in the zygote, but are acquired sometime later in life. This type of mutation is involved in the development of cancer.

Mutations are the raw material on which natural selection operates, thus being the most important cause of evolutionary novelty.

In conclusion, mutations represent the most important source of genetic variability and a fundamental way to add new genes to a gene pool.  

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If the statement is true, type true. If the statement is false, change the underlined word op plase
make the statement true.
Air pressure is the result of the weight of a column of air pushing on an area,

Answers

Answer:

10

Explanation:

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