Why are index fossils useful to scientists?

Answers

Answer 1

Answer:

Fossils are used to determine the ages of rock layers. Index fossils are the most useful for this. Index fossils are organisms that lived over a wide area.  An index fossil allows a scientist to determine the age of the rock it is in.

Explanation:


Related Questions

10. What is the study of life? (B.1.5)

Answers

Answer:

[tex]biology[/tex]

Explanation:

[tex]biology \: can \:be \: referred \: to \: as \: the \:scientific \: study \: of \: living \: oganisms[/tex]

Active transport occurs through which type of biomolecule?
Proteins
Lipids
Carbohydrates
Nucleic acids

Answers

Nucleic acids. It is this becasue In my science call today they said this

Nucleic acids is the first answer I know I took the test and got it right

a female crack addict continued to use drugs during pregnancy. what was the mother suspected of?
a. physical abuse
b. neglect
c. domestic violence
d. physical trauma

Answers

Answer:
b. Neglect


Explanation:
The well being of the fetus was put into danger, drug abuse can cause problems during pregnancy or lasting affects on the baby after birth.

The mother suspected of neglect in a female crack addict who continued to use drugs during pregnancy (Option b).

What is drug abuse?

Drug abuse refers to the uncontrolled use of drugs, which is harmful to the health of the individual.

Crack is a highly addictive drug that acts as a stimulant and is generated from the cocaine conversion process.

In conclusion, the mother suspected of neglect in a female crack addict who continued to use drugs during pregnancy (Option b).

Learn more on drug abuse here:

https://brainly.com/question/1189815

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How does driving on the beach contribute to ocean acidification?

Answers

Answer:

Driving on the beach can contribute to ocean acidification because of the pollution a car's exhaust exerts. One car can't do much to effect the vast ocean, but everyday cars are driven along the shore and they build up from time to time. This can cause alot of pollution to the waters and sea creatures.

list 2 examples of traits​

Answers

Answer:

Eye color

Blood type

Explanation:

 your hair and eyes also your eye color

Explanation:

What happens when a stationary front passes?

Answers

Answer:

_________

Explanation:

Because a stationary front marks the boundary between two air masses, there are often differences in air temperature and wind on opposite sides of it. The weather is often cloudy along a stationary front, and rain or snow often falls, especially if the front is in an area of low atmospheric pressure.

These images show types of landforms. Which image shows a plateau?
1
2
3
4

Answers

Among the images that show different types of landforms, an image that shows a plateau is the second one. Thus, the correct option for this question is B.

What is meant by landforms?

Landforms may be defined as naturally-formed characteristics on the surface of the earth often with recognizable shapes and structures. Examples of some landforms are mountains, hills, plateaus, valleys, deserts, plains, etc.

According to the images, the second image shows a type of landform which is often known as a plateau. A plateau may be characterized as a flat and elevated landform that significantly mutiny pointedly above the surrounding area.

The image fourth represents a mountain. The image third represents a plain.

Therefore, an image that shows a plateau is the second one. Thus, the correct option for this question is B.

To learn more about Landforms, refer to the link:

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1. What is responsible for our color sight?

Answers

The amount of light entering the eye is controlled by the pupil, which is surrounded by the iris.

Answer:

Light receptors within the eye

Explanation:

You are learning about energy transformation in science class Sally Group made this electric magnet using battery and some wise describe the energy transformation
you see here

Answers

Answer:

The energy transfer in an electromagnet transfers from mechanical energy to electrical energy to chemical energy. The energy transformation in an electromagnet is from chemical to electrical to electromagnetic waves.

Secretions from the pancreas contain compounds called lipases. Lipases increase the rate of digestion of lipids.
Lipases are an example of which of the following?
• Enzymes
• Simple sugars
Nucleic acids
• Hormones

Answers

Lipases are enzymes that lead to the hydrolysis of lipids.

A beaker of with 115 mL of solution has a temperature of 21 °C. The solution contains 5 g of salt and 115 mL of water. Students added two ice cubes to the solution and stirred the solution with a stirring rod. Which properties of the solution changed as the ice cubes melted?

Answers

Answer:

Properties of the solution which changed

1. The temperature of the solution

2. The concentration of the solution

Explanation:

The properties of the solution that changed are:

1. The temperature of the solution: Once the ice cubes were added, (we will assume that the ice cubes were at 0 degrees Celcius) The system had to attain thermal equilibrium. Hence, the higher temperature of the solution melted the ice, while the ice, cooled the entire mixture.

2. The concentration of the solution reduced.  We need to remember that ice is water. As the ice was added, we were indirectly adding more water to teh solution, thus diluting its concentration

Several different amino acids join together to form a protein. How do any two types of amino acids differ from one another?

A. the number of amino groups in the molecule
B. the number of carboxyl groups in the molecule
C. the chemical structure of the R group in the molecule
D. the number of chemical bonds formed by the central carbon atom

Answers

prob D but I’m not that sure

What part of the cardiovascular system is directly responsible for nutrient transport?

Answers

Answer:

Circulatory system

Explanation:

It is the body's delivery system, concerned with circulating blood to deliver oxygen and nutrients to every part of the body.

Answer:

blood

Explanation:

I took the test on edg.

What are mutations, and how can they affect proteins?

Answers

Answer:

A mutation is a change in a DNA sequence.

A mutation can cause the protein to malfunction or to be missing entirely.

I hope it helps.

Sample Response:

Mutations are permanent changes in the DNA sequence of a gene. Mutations can affect the shape of the protein that is produced. A change in the shape of the protein can affect the function of the protein, which may affect the trait that is seen.

What level in the hierarchy of life would have many characteristics in common?

Answers

ecosystem and biosphere

I need to know this I will MARK BRAINLIEST WHO EVER ASWERS FIRST

Answers

Answer:

If i am supposed to choose more than one, i would say that plants, animals and bacteria are biotic factors.

Explanation:

A biotic factor is a living organism that shapes its environment.

Which organisms should be classified in more than one trophic level?

Answers

A trophies level pertains to the position of an organism in the food chain. Humans are the most dominant organism that belong to more than one trophies level. When we eat plants we become the secondary or the tertiary consumers.

Birds are also organisms that belong to more than one trophies level. When birds eat seeds they become the primary consumer, but when they eat insects they become the secondary or even the tertiary consumers.

Gene therapy is a form of_______.
1. Selective breeding
2. Artificial selection
3. Cloning
4. Genetic engineering

Answers

selective breeding :)


will make brainliest help asap
Human blood type is
determined by multiple alleles (A, B, and o) Which ratio would result from a cross between a man with heterozygous Type A blood and a woman with Type O blood?
50% Type A 50% Type O
50% Type AB 50% Type O
100% Type A
100% Type O

Answers

Answer:

Explanation:

1st one

Answer:

In this problem, there is no uncertainty abt the genotype of either parent. A parent of blood type AB has the co-dominant IA and IB alleles. A parent of blood type O is homózygous recessive for the i allele.

The Punnett square for their offspring is shown to the right. The genotypes of their offspring could be either IAi or IBi. Their children could be in blood groups A or B, but not AB or O.

Explanation:

Most-likely the third one.

The different forms of a gene are called
(1 Point)
traits
hybrids
alleles

Answers

I believe it’s alleles

I WILL MARK BRAINLIEST!

Answers

Answer:

Nucleus

Explanation:

Nucleus is the most common cell that a animal will have.

Hope this helps:)

Pls mark brainliest

The nucleus

hope this helps you out .

i don’t want the brainliest by the way lol.

Are bone cells diploid or haploid?​

Answers

Answer:

bone cells of human body are diploid

Answer:

diploid i believe

Explanation:

srry if im wrong


Question 3

The surroundings where a particular species lives is known as its

1.abiotic zone
2.habitat
3.community
4.biomass

Answers

Answer:

habitat

Explanation:

becous community is for people

Answer:

its habitqt

Explanation:

leqrn this in 2nd grade

What was “transformed” in griffiths experiment

Answers

Answer:

Griffith's Experiment was an experiment done in 1928 by Frederick Griffith. It was one of the first experiments showing that bacteria can get DNA through a process called transformation. ... In this experiment, bacteria from the III-S strain were killed by heat, and their remains were added to II-R strain bacteria

Answer: The R bacteria.

Explanation:

In the bacterial transformation experiment, Griffith saw that the R strain of bacteria could be changed, or 'transformed' into S-strain bacteria when they were mixed with dead S-strain bacteria.

Hope this was helpful.
:)

If a fish has 30 chromosomes in each of its somatic cells, how many chromosomes will be in each daughter cell after mitosis?

Answers

Answer:

it would be 60

Explanation:

because if haploid cells double the amount of chromosomes then diploid would do the opposite

plzzzzz helppppp!!.......

Answers

I believe the answer is c

In some types of colon cancer, stem cells have a mutation in the APC gene. what happens if the APC gene is mutated?

Answers

Answer:

People with mutations in the APC gene have familial adenomatous polyposis (FAP) or attenuated FAP (AFAP).

Winters in Minnesota frequently experience
temperatures below zero.

A. Climate
B. Weather

Answers

its b) bc if it was climate it would’ve said like tropical, continental etc.

Can you list the five layers of Earth's atmosphere?

Answers

Hello!

The Answer is: The troposphere, stratosphere, mesosphere, thermosphere and exosphere.

Thank you for asking this question!

It would be greatly appreciated if you thanked me and marked me as the brainliest!

Have an amazing day.

Which macromolecule is found in the cell wall?
A)
Carbohydrates
B)
Lipids
Proteins
D)
Nucleic Acids

Answers

It’s carbohydrate,
Because for the cell wall is only for plants in which is made from cellulose. And cellulose fiber are long which it creates glucose and glucose comes from carbohydrates.
I hope this helps
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Which statement is true about how just and effective rulers would rule according to ancient Chinese beliefs? A. reign for 800 years B. recieve authority from heaven C. never be overthrown D. achieve the status of godas Simplify by using the o38(4-9)= Please tell me the answer I have been struggling. PS this is middle school math WHICH ONE?! AND PLS EXPLAIN WHYYY fast pls :( A, B, C or F In addition to liquid precipitation, which are present when freezing rain occurs? Literary Terms: Identify the literary term for questions the following sentence from the listbelow.The concert was so loud that her ears rang for days afterward.imagerysimilemetaphorallusion 20. Perspiration leaves the body through theO collecting ductsO nephronsO sweat glandsO kidneys Be your own songwriter: Create a short song about your favorite Christmas GIVING BRAINLEST ( need this done ASAP, worth 20 points!! ) Read the excerpt from Matilda by Roald Dahl. "What about something much harder, like two times four hundred and eighty-seven? Could you tell me that?" "I think so, yes," Matilda said. "Are you sure?" "Why yes, Miss Honey, I'm fairly sure." "What is it then, two times four hundred and eighty-seven?" Which statement is best supported by the dialogue?- Matilda is very good at multiplication, but she does not know how to divide. - Miss Honey desperately wants Matilda to get a wrong answer. - Miss Honey is stunned by Matildas ability to multiply high numbers. - Matilda wants to impress Miss Honey with her multiplication skills. A solution with a greater number of hydrogen ions (H+) than hydroxide ions is called a(n) BE SPEEDY What does Otis Amber repeatedly yell at tenants in Sunset Towers?a Bangb. SurpriseC Boomd. Hello 2+2 i know the answer its just points Determine the type of triangle that draw below ASAP PLZZZZ HELP!!!! I REALLY NEED HELP!!!! THIS IS FOR MY SEMESTER EXAM!!All of the following are TRUE about European settlement in North America during the 1600s EXCEPT:a.England and France were fighting to colonize New Spain.b.Spain was no longer the only European presence in the area.c.England was colonizing along the Atlantic coast.d.France had control of the Mississippi River.Please select the best answer from the choices providedABCD Molly has 700 pennies. Which expression showswhat she must do to find the number ofquarters? Choose the word with the positive connotation.chuckle--snickerQuestion 3 options:snickerchuckle I need help with this but take your time it is early!Show work and how you got the answer please! Plz help me out Im so confused From acetic acid how to get formic acid ? Which factors would not decrease population and biodiversity? a-high birth rates, low mortality rates b-hunting of keystone species c-a competitive invasive species d-diseases and natural disasters e-carrying capacity and limiting factors