Which statement accurately describes radioactive dating?

Answers

Answer 1

Answer:

where is the statement (i will just give you some info coz i dont know what to answer <3)

Explanation:

We have rocks from the Moon (brought back), meteorites, and rocks that we know came from Mars. We can then use radioactive age dating in order to date the ages of the surfaces (when the rocks first formed, i.e. when the lava cooled and crystallized). We also have meteorites from asteroids and can date them, too.


Related Questions

Kingdom Fungi



Question 11 options:

Eukaryotic


Prokaryotic


Unicellular


Multicellular


Autotrophic


Heterotrophic

Answers

Answer:

Eukaryotic in nature. They are higher classes of Eukaryotic organisms

4. Floating algae called Phytoplankton is a
A.) secondary producer
B.) consumer
C.) primary producer
D.) very large plant

Answers

Answer:

In a balanced ecosystem, they provide food for a wide range of sea creatures.Phytoplankton, also known asmicroalgae, are similar to terrestrial plants in that they contain chlorophyll and require sunlight in order to live and grow.

Genes determine the______ of organisms.

Answers

traits of organisms. hope this helped.

Help it’s super confusing

Answers

Slowly. The others don’t make sense

Answer:

Slowly

Explanation:

How are alleles represented in genetics?

Answers

Well to start off, alleles determine genotypes. For example, an uppercase letter may be the dominant trait (A - Black hair), whereas the lowercase letter may be the recessive trait (a- Red hair). So whichever outer appearance trait is noticeable, that allele is dominant.

Biologists refer to dominant alleles as uppercase letters and recessive alleles as lowercase letters when referring to genotype.

What are alleles?

Genetics and evolution define an allele as a variant of the same sequence of nucleotides at the same location on a lengthy DNA molecule.

The variant DNA sequences at a locus are known as alleles, and the chromosomal or genomic location of a gene or any other genetic element is referred to as a locus.

Alleles can be identified using just one capital or lowercase letter, two, three, or more letters, or letter/number combinations. Superscripts, subscripts, or both may be present in alleles.

Alleles that are recessive are denoted by lowercase letters, while dominant alleles are denoted by capital letters.

Thus, this way, the alleles are represented.

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Question 4
Which of the following is NOT a service that diverse ecosystems provide?
O Soil & nutrient retention
O Diversity of food items
O Water retention
O Animal habat
O Global warming​

Answers

It Is Global Warming

Have a question on a science quiz.

Answers

Answer:

4 C    5 B     6 B

Explanation:

Can you please help me with both

Answers

Supply and solution

How would you convert a spring into a straight piece of metal using the same approach as topoisomerase in DNA replication?

Answers

Answer:

It would be necessary to make small breaks in the spring and then align the pieces, forming a straight piece.

Explanation:

Topoisomerase is the enzyme responsible for unwinding the DNA molecule during replication. To do this, topoisomerase makes small breaks in the DNA molecule, but uses covalent bonds to hold these small pieces of DNA, causing the strands of DNA to pass over each other, aligning in a rectilinear topography.

Y red ballonls and m green ballons were divided evenly amoung three kids. How many ballons did each kid get

Answers

Answer:

Each kids will get Y red balloons + M green ballons ÷ 3.

Explanation:

This is because Y red balloons and green red balloons are the total number of balloons present.

The total number of ballons are Y red+M green ballons.

The total number of kids are 3.

Therefore each kids with get the addition of the ballons divided by 3.

Therefore, Y red ballons + M green ballons ÷ 3.

Help please confusing

Answers

Answer:

Learned

Explanation:

Only this answer makes sense.

What does a phylogenetic tree represent?

Answers

Answer:

A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.

Answer:

A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary descent of different species, organisms, or genes from a common ancestor.

Explanation:

If a ⊥ b and b ∥ c, then _____




a ∥ b.


a ∥ c.


a ⊥ c.


b ⊥ c​.

THE ANSWER IS NOT A//C

Answers

Answer:

a is perpendicular to c will be the answer.

Which of the following are techniques to estimate population size?


counting individuals

sampling

mark-and-recapture

population index

Answers

Answer:

The Mark-Recapture technique is used to estimate the size of a population where it is impractical to count every individual. The basic idea is that you capture a small number of individuals, put a harmless mark on them, and release them back into the population.

Two important measures of a population are population size, the number of individuals, and population density, the number of individuals per unit area or volume. Ecologists often estimate the size and density of populations using quadrats and the mark-recapture method.

Wildlife managers use 4 general approaches to estimate population sizes of wildlife: total counts, incomplete counts, indirect counts, and mark-recapture methods.

The answer is counting individuals and mark-and-recapture.

The technique counting individuals, sampling, mark-and-recapture, and population index are used to estimate population size.

What is population?

A population is the entire set of individuals, whether that group is a nation or a group of people who share a characteristic.

To estimate population size, the following methods can be used:

Individual counting entails physically counting every individual in a population. This method is appropriate for small or sparsely populated areas.

Sampling is the process of taking a representative sample of a population and extrapolating the results to estimate population size. This method is best suited for large or densely packed populations.

Capturing and marking a sample of individuals, releasing them back into the population, and then capturing another sample later. The proportion of marked people in the second sample is used to calculate population size. This method is appropriate for populations that are difficult to directly count or sample.

Population index: This method estimates population size by using indirect measures such as the number of nests or tracks. This method is appropriate for populations that are difficult to observe directly or for counting individuals. It is, however, less accurate than other methods.

Thus, all the given options are correct.

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The density of ocean water varies from place to place across the Earth. What factors control the density of ocean water?
A. depth and salinity

B. depth and temperature

C. salinity and life-forms

D. salinity and temperature

Answers

Answer:

D. Temp and salinity

Explanation:

A cell's mRNA loses all of its uracil. What will happen next?

Answers

If a cell's mRNA loses all of its uracils, then it will not undergo a protein synthesis or translation process.

as defected mRNA will not be able to form all anticodon thus there is no codon formation takes place for protein synthesis.

What are codon and anticodon?

Codon: A codon is a trinucleotide sequence of DNA or RNA that corresponds to a specific amino acid.

Anticodon: An anticodon is a trinucleotide sequence complementary to that of a corresponding codon in a messenger RNA (mRNA) sequence.

Hence, If a cell's mRNA loses all of its uracils, then it will not undergo a protein synthesis or translation process.

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If B is the dominant gene for brown eyes and P is recessive gene for blue eyes, what is the genotype for brown eyes?

Answers

Answer:

D

Explanation:

Both BB and Bb will result in brown eyes as it is the dominant trait. Only bb will result in blue eyes thus the answer is both choice 1 and 2.

write a brief defintion of the term protist

Answers

Answer:

A protist is a eukaryote that isn't an animal, plant, or fungus.

Answer:

a single celled organisms of the kingdom Protista, such as a protzoan or simple alg.

Explain how the data supports your hypothesis.

If needed, you can change your poison selection (above).

Answers

Answer: It is verified by testing it. If the data supports the hypothesis, then we consider the hypothesis to be verified and true. If however, the data does not support the hypothesis or refutes it, then the hypothesis is in trouble, and we have to come up with a different hypothesis to explain the observations.

Explanation:

What is one drawback of a field experiment?
A) It does not reflect complex interactions.
B) It cannot be controlled.
C) It is difficult to determine the cause and effect.
D) There are no manipulated variables.

Im not sure if it is B or C...

Answers

Answer:

B) It cannot be controlled

Answer:

B) It cannot be controlled.

Locate and name 3 of the circular muscles that control the movement of food through the system

Answers

Answer:

Peristalsis Is the Contraction of Muscle Tissue That Helps Move and Break Down Foodstuffs. The walls of the alimentary canal include layers of smooth muscle controlled by the autonomic nervous system. Alternating contraction and relaxation of these muscles is called peristalsis.

Explanation:

Which of the following amendments might you choose to improve the overall quality of the soil in the following scenario?
The soil in a garden is loamy, with a high organic content. On testing, the soil is sour, with a low pH of 4. You wish to grow lilacs, which prefer a more alkaline soil.


potassium

calcium carbonate

compost

nitrogen

Answers

Answer:

compost

Explanation:

Can you help me with both

Answers

Decisions, studied I think

Answer:

8. decisions

9. studied

Which biome would animals be adapted to collecting FRUITS in the CANOPY layer of trees?

Answers

Answer: the forst or the jungly

Explanation:hope this help

The organism shown is___
and it is a____
OA. single-celled; plant
ОВ.
multi-celled; plant
OC.
single-celled; bacteria
OD.
multi-celled; fungi

Answers

Answer: B

Explanation:

All vascular plants are multicellular.

Are we running out of clean water? And why, explain. ​

Answers

Answer:

well were not running out but not every place has clean water and no we never run out of clean water. theres always clean water

Explanation:

Answer: hm, our planet won't run out of water. fresh water isn't always avaliable when humans need it. half of the freshwater can be found only in 6 countries. more than one million humans live without clean water.

Explanation:

17. Identify How would the
shuttle's motion change if
there were no gravitational
force between it and Earth?

Answers

Answer:

Gravity is one of those things we take completely for granted. And there are two things about it that we take for granted: the fact that it is always there, and the fact that it never changes. If the Earth's gravity were ever to change significantly, it would have a huge effect on nearly everything because so many things are designed around the current state of gravity.  Before looking at changes in gravity, however, it is helpful to first understand what gravity is. Gravity is an attractive force between any two atoms. Let's say you take two golf balls and place them on a table. There will be an incredibly slight gravitational attraction between the atoms in those two golf balls. If you use two massive pieces of lead and some amazingly precise instruments, you can actually measure an infinitesimal attraction between them. It is only when you get a gigantic number of atoms together, as in the case of the planet Earth, that the force of gravitational attraction is significant.  The reason why gravity on Earth never changes is that the mass of the Earth never changes. The only way to suddenly change the gravity on Earth would be to change the mass of the planet. A change in mass great enough to result in a change in gravity isn't going to happen anytime soon.

Explanation:

But let's ignore the physics and imagine that, one day, the planet's gravity turned off, and suddenly there was no force of gravity on planet Earth. This would turn out to be a pretty bad day. We depend on gravity to hold so many things down -- cars, people, furniture, pencils and papers on your desk, and so on. Everything not stuck in place would suddenly have no reason to stay down, it would start floating. But it's not just furniture and the like that would start to float. Two of the more important things held on the ground by gravity are the atmosphere and the water in the oceans, lakes, and rivers. Without gravity, the air in the atmosphere has no reason to hang around, and it would immediately leap into space. This is the problem the moon has -- the moon doesn't have enough gravity to keep an atmosphere around it, so it's in a near-vacuum. Without an atmosphere, any living thing would die immediately and anything liquid would boil away into space.  In other words, no one would last long if the planet didn't have gravity.  If gravity were to suddenly double, It would be almost as bad, because everything would be twice as heavy. There would be big problems with anything structural. Houses, bridges, skyscrapers, table legs, support columns, and so on are all sized for normal gravity. Most structures would collapse fairly quickly if you doubled the load on them. Trees and plants would have problems. Power lines would have problems. The air pressure would double and that would have a big effect on the weather.  What this answer shows you is just how integral gravity is to our world. We can’t live without it, and we can't afford to have it change. It is one of the true constants in our lives!

Which of these is digested by protasse

Answers

Answer:

C) Amino Acid

Explanation:

Protease breaks down proteins into amino acids

Which contains MORE organisms? *
A. Genus
B. Species
C. Phylum

Answers

Answer:

Species is the Answer

Thank you friend

the answer is b , species

Will mark brainliest!

In multicellular organisms what is an important job of all tissues, organs and organ systems?

Answers

Answer:

Answer choice 3

Explanation:

For example...

Liver- filter blood

Bladder- eliminate waste

Heart- pump blood

Etc..

Answer:

To maintain homeostasis

Explanation:

I did it and got it correct

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