what are some traits of an index fossil? what are they used for?

Answers

Answer 1

A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata.

Answer 2

A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata.

Related Questions

Please help, this is worth 20 points!

Answers

The answer is D :) ywlc
Answer is d because electrical is charged particles

What is a phenotype? *

The genetic makeup of the individual
The expression of a trait; PHysical appearance
An organism that has the same genes for a trait (example: TT or tt)
The passing of traits from parent to offspring

Answers

Answer:

B, the expression of a trait, Physical appearance

Explanation:

Genotype refers to the genetic makeup of someone, but phenotype refers to the physical traits the person displays based off their genotype.

It’s is a trait B yea that’s it

In what direction and with how much net force will the satellite move?

Answers

Explanation:

I am not sure with this answer but the satellite should be moving in the direction of 1000N-left since the greater force is being applied on the left side which 1000N. I am just learning on it.

It will move away from the planet at 500(N)
Common sense
Very ez

Which muscle has 3 muscle "heads' or points of origin that is responsible for straightening the arm?

O Abdominals
O Biceps
O Triceps
O Gluteus Maximus​

Answers

Answer:

The triceps brachii gets its name because it contains three muscle 'heads' or points of origin. These include the: Medial head. Lateral head.

Explanation:

sorry if i am wrong

Triceps is the answer because tri means three

The Classification level that includes the most specific traits is an organism's ______

Answers

The answer is species
It would be an organisms species

Please answer this question, preferred to be answered logically.

Answers

gas produced and new substances formed. there’s no light or sound produced, no heat changed, and no precipitation.
gas produced and new substances formed, oxygen is being produced (gas) glucose is formed (c6h12o6) hope this helps c:

The diagram below shows a food web. The organisms in a food web can be classified based on how they
get the energy they need.




Which organism in this food web is a primary consumer?



A>mouse

B>snake

C.fox

D.hawk

Answers

It’s D hope this helps

Answer This! Good Luck!

Answers

Answer:

It can be but up to where the kidiny is and it could be made to detectice unhealthy organs.

Explanation:

They would insert the camera into the area of the kidney and look for discoloration or odd shapes on it.

The picture below shows one way that humans and mosquitoes interact.



What is the best classification of this relationship?



A.parasitism

B.competition

C.commensalism

D.mutualism

Answers

parasitism ! Hoped this helped :)!

Organism's traits depend on the____in its cells.

1.colors

2.fats

3. lipids

4. proteins

Answers

2 fats
I took this test and I got it right

Describe the movement of Earth’s mantle. Explain how convection currents can cause tectonic plates to move.

Answers

Answer:

Heat rising and falling inside the mantle creates convection currents generated by radioactive decay in the core. The convection currents move the plates. Where convection currents diverge near the Earth's crust, plates move apart. Where convection currents converge, plates move towards each other.

Convection currents from core radioactive decay rise and fall in the mantle. Convection currents move plates. Plates separate near convection currents. Plates converge at convection currents.

What are convection currents?

Convection currents are caused by differential heating. Warm, less dense, lighter material rises while cool, more dense, heavier material sinks. Convection currents are patterns of circulation that are produced by this movement in the Earth's mantle, oceans, and atmosphere.

Convection currents are produced by radioactive decay in the core and are caused by heat rising and falling inside the mantle. The plates are moved by convection currents. Plates separate where convection currents split close to the Earth's crust. Plates move in the direction of one another where convection currents converge.

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List 4 different organisms from the same food chain in the order of how the energy flows.

Answers

Answer:

Worm, Bird, Snakes, Hawks.

Explanation:

Hope this helps in anyway,

Worm, Bird, Snakes, Hawks are the  order of how the energy flows.

What is Food chain?

Food chain, in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.

Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant. Plants, which convert solar energy to food by photosynthesis, are the primary food source.

Because energy, in the form of heat, is lost at each step, or trophic level, chains do not normally encompass more than four or five trophic levels. People can increase the total food supply by cutting out one step in the food chain.

Therefore, Worm, Bird, Snakes, Hawks are the  order of how the energy flows.

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Stephan’s mother is a mineralogist, and sometimes she brings home samples to study. Stephan observesand compares these minerals. He knows minerals form in several ways. He is especially interested in the minerals that form from volcanic activity and the kinds of crystals they form. What determines crystal size in minerals formed by lava or magma?
A. the kind of mineral that formed
B. the amount of material available
C. the rate at which the minerals cooled
D. the materials in the lava or magma

Answers

D!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

The rate at which the minerals cooled determines the crystal size in minerals formed by lava or magma. The correct option is C.

What determines crystal size in minerals?

The solution is extremely saturated with some minerals, crystals form as magma cools. The crystals are quite tiny because they did not have much time to form if the magma cooled quickly. The crystals have ample time to form and become huge if the magma cools gradually.

The rate at which the minerals cooled Crystal size in minerals formed by lava or magma is primarily determined by the rate at which the minerals cooled.

When lava or magma cools slowly, it allows crystals to grow larger. Conversely, when it cools rapidly, crystals have less time to grow and thus remain smaller.

Therefore, the correct option is C.

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Charles Darwin's theory of evolution describes how species evolve due to natural selection. Which of these is NOT evidence of natural selection
Camels have long, bushy eyelashes
Mint plant varieties are crossed to express desirable traits
The snowshoe hare is white in winter and brown in summer
Galapagos finches have stronger beaks after years of drought

Answers

Galapagos because their beaks became stronger which is their bodies evolving after going through years of droughts
The answer is b mint plant varieties being crossed to express desirable traits. This is because it is a process that wouldn’t occur in nature but people do it to benefit themselves. Hope this helps!

Explain two ways in which forecasters collect weather data and how it's used

Answers

Answer:

thermostats  

Explanation:

Answer:

Various instruments measure weather conditions: thermometers measure air temperature, and barometers measure air pressure. Satellites monitor weather from above. Radar is used to monitor precipitation

Explanation:

your answer is underlined

The hypothesis that the continents once formed a single landmass, broke up and drifted to their present location is either:
Pangaea
Evolution
Atomic
Continental Drift

Answers

The Answer is Pangea

Pangea was the super continent and it divided and drifted apart cause of continental drift

Raccoons might go through our trash cans to find food because…

Answers

Answer:

They are hungry?

Explanation:

Explanation:

because they are racoons?

Light energy travels as -

A: compressional waves
B: primary waves
C: surface waves
D: transverse waves

Answers

it would be transverse waves !

Answer:

D

Explanation:

What powers the protein ATP Synthase?

A. light
B. glucose
C. NAPH
D. H+

Answers

i believe it is option d. H+
It’s D. For sure
Ik cause I learned this lol

please help
On the date chart above the hight and low tide depths were recorded every coupl days. Looking specially at February 14th what type of tide is occurring? What moon phase would possibly occur on this date ​

Answers

Answer:

Explanation:um I don't really know full moom?

plz help

first answer (melted rock in the interior of the earth cools after so many years, turns to solid rock. after plates into each other, mountains form due to pressure which brings the rock on the earth's surface. another way is when rocks flow out with lava, the lava cools and hardens into a rock). this is my first answer. Answer about how you think melted rock deep within Earth could change over time. Would you revise your answer now? If so, how? If not, explain why.

Answers


The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation. Any rock can transform into any other rock by passing through one or more of these processes

Melted rock within the Earth changes over time crystallization and forms igneous rocks.

What is an igneous rock?

One of the three primary rock types, along with sedimentary and metamorphic rocks, is an igneous rock, also known as magmatic rock. When lava or magma cools and solidifies, igneous rock is created. The partial melting of pre-existing materials in the mantle or crust of a planet can produce the magma.

Based on their chemical makeup, igneous rocks can be categorised into four groups: felsic, intermediate, mafic, and ultramafic. Most of the crust of the earth is made up of igneous rock.

The most typical igneous plutonic rock is granite. contains essential quartz, plagioclase, and alkali feldspar; hornblende, biotite, and/or muscovite are frequently present.

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How can you use the terms of air pressure, air masses, and fonts to describe the formation of a tornado ??

Answers

Answer: this is true because what this guy is saying I can confirm it
How Tornados Are Formed. In simple terms, tornados are formed during severe weather cycles that combine thunderstorms, colliding air masses (or fronts), a combination of cold and warm air, and high and low pressure changes. When two or more moving air masses (cold or warm fronts) collide, strong weather will develop...

The _____ controls what enters and leaves the cell.
1.mitochondria
2.endoplasmic reticulum
3.nucleus
4.cell membrane

Answers

cell membrane


hekwkwolwkwks
Cell membrane is your answer.

A scientist lists the characteristics of an organism that he is observing
It is multicellular
It has cell walls made of cellulose,
It makes its own food,
In which of these Kingdoms should the organism be classified?
Animalia
Archaea
Fungi
Plantae

Answers

Answer: Plantae;
Members of the Plant kingdom are multicellular, and the cell walls are made of cellulose. Also, the chloroplasts in the cells crest food for the organism. They are autotrophic.

A scientist lists the characteristics of an organism which he is observing. This organism should be classified under the kingdom Plantae. Thus, the correct option is D.

What is Plantae?

The living organisms on the planet are divided into five different kingdoms including Monera, Protista, Fungi, Plantae, and Animalia are classified on the basis of their characteristics such as the cell structure, mode of nutrition, mode of reproduction and the body organization.

Kingdom Plantae is a kingdom of the five kingdom classification given by R. H. Whittaker. Plants include green, brown and red algae, liverworts, mosses, ferns and the seed plants with or without the formation of flowers. They have the characteristics including multicellular organisms, covered with a cell wall made up of cellulose, are autotrophs (make their own food), contain photosynthetic pigment in plastids.

Therefore, the correct option is D.

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Scers who search for oss scheuse the smalfossilto describe some of the finds. An example of a transitional fossilis Dimetrodon, which lived 280-265 million years ago. Dimetrodon had alzard-e appearance but had a sale
structurecking out from is back that owed to regulate is body temperature, an ability that is found today in modern warm-blooded mammals. While Dimetrodon swallowed its prey whole like reptiles do it also had different types of teeth, a tratalo
common to which of the best explains how tonalfossils support the theory of evolution?
Transitional fois show rats common to ancestors as well as descendants
Trafo show how the organic characteristics remain the same over time
Tanlos show how individual organism can change their characteristics during their times
Transitional fossils show how populations of past organisms were not able to change their characteristics over time

Answers

Answer:

sorry for the answer because I can"t understand it

What is the measurement of the wavelength shown in the picture?

A: 3 cm
B: 3.5 cm
C: 4 cm
D: 4.5 cm

Answers

B :3.5 cm

is the answer as the measurement of the wavelength show in the picture………...........

B: 3.5 cm

This is Plato answer.

Which one of these happens in an 11 year cycle?


Coronal Mass Ejection


Prominences


Solar Flares

Sun Spots

Answers

Answer:Solar flares

Explanation:

Answer: Solar Flares

Explanation: The Sun's magnetic field goes through a cycle, called the solar cycle or known as solar flares. Every 11 years or so, the Sun's magnetic field completely flips. This means that the Sun's north and south poles switch places. Then it takes about another 11 years for the Sun's north and south poles to flip back again.

Many animals have beneficial traits that help them survive their environment. How do these traits develop in organisms?

Answers

they are used for them to adapt to the environment

Answer:

Natural selection allows these traits to develop in organisms to help them survive their environment.

Explanation:

Which of these statements best describes the connection between biodiversity and evolution?
The more biodiversity an area has, the greater the chances of new species arising.
If biodiversity is high, then more predation will take place, preventing species from evolving.
Without a lot of biodiversity, organisms are more likely to survive, so they have more time to adapt.
Evolution depends upon low biodiversity to keep population sizes down, which increases numbers of genes.

Answers

Answer:

I believe the answer is c

Explanation:

the answer is C i think

hey help please......

Answers

look at the animals and decide if they would be able to survive in a place like so

Answer:

Biotic:The bugs and the trees

Explanation:

The bugs wouldn’t be eaten by the frogs because frogs rely on water and the trees would survive from rain.

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