Biology Middle School

which layer contains an index fossil? How do you know

Which Layer Contains An Index Fossil? How Do You Know

Answers

Answer 1
layer C because an index fossils are fossils of widely distributed organisms that lived during only one short time period.. an index fossil is most likely going to be shells or trilobites so the best layer is C
Answer 2
location 3 because they live through only short periods of times

Related Questions

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 Titanic was the most
A. vessel
B. luxurious
C. gazed
ship of its kind in 1912.

Answers

Answer:

B

Explanation:

The other answers dont make sense

It’s B bcz it makes the most sense

True or False: There is more water in our rivers and lakes combined than there is underground.

Answers

it's false

there's more water underground

False, most of the water goes underground we learned this in school a few years ago

loveholic drops in less than 2 weeks i’m going feral

Answers

Answer:

what's loveholic. i'm so sorry but it just looked so interesting i had to ask

Explanation:

what can be done to prevent soil erosion

Answers

Answer:

Water and keep the soil fertile

Explanation:

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.

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.

Learn more about Plantae here:

https://brainly.com/question/26808773

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What results when the air surrounding a bolt of lighting experiences a rapid increase in temperature and pressure .

Answers

Answer:

thunder :)

Explanation:

There are milions of organisms on Earth that scientists have dassified into different levels of organization. Which of these charac wodd be most important to sentias
when classifying organisms?
where the organism lives
how small the organismis
the genes of the organism
the shape of the organism

Answers

The answer is 4. genes because they are useful to tell what groups to categorize the organism in, and what other organisms may be related to or in the same group as it.

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.

To learn more about food chain, refer to the link:

https://brainly.com/question/29835374

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How many molecules are in this formula?

Answers

The answer is 3

Explanation:
3 molecules are in the formula

Which group of vertebrates are endotherms and have amniotic egg?​

Answers

Answer:

birdBipedal, endothermic, tetrapod vertebrate that lays amniotic eggs and has wings and feathers.

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

what human activities are responsible for soil erosion happening at advansed rates

Answers

Aside from desertification, there is no doubt that human activities are a major cause of soil erosion in general. Construction of roads and buildings, logging, mining, and agricultural production have resulted in large amounts of soil erosion in the U.S. and around the world.

Hope this helps

Answer:

Ploughing, unsuitable agricultural practices, combined with deforestation and overgrazing, are the main causes of human-induced soil erosion

Explanation:

In a given family, the mother is a carrier for red-green color blindness, and the father has normal vision. The couple has one son and one daughter. What are the chances that the son has the red-green color blindness disorder? What are the chances that the daughter has the disorder? Explain your answers.

make short pls

Answers

Answer:

50%

Explanation:

yshsbsnzhzbsbjjz d d bdbdbhdhziushhshhdhdhshjsjs

The picture below shows an ecosystem that has been recently changed by human activity. The change
has impacted native populations living in the area.


Which of the following limiting resources was most affected by this human activity?



A.nesting sites for birds

B.water supply for deer

C.amount of space for trees

D.number of predators that eat fish

Answers

Answer is B, hope it helped.

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

Two students are analyzing Earth’s ocean currents. Student A says that the purple arrows in the diagram can travel across the continents, but student B says that they cannot. Choose the explanation that would prove student B’s reasoning correct.


The high salinity of ocean currents propels the convection.
The high salinity of ocean currents propels the convection.

Air currents push ocean currents over continents.
Air currents push ocean currents over continents.

Air currents are unable to travel across continents.
Air currents are unable to travel across continents.

Ocean currents are shaped by continental deflection and do not move across land.

Answers

Answer:

Step- by -Step Explanation:

Which type of biotechnology would be used by scientists who use the egg cell of an endangered animal to increase the population of the animal?

Genetic engineering because the genes of the animal would be modified
Genetic engineering because it is always helpful for the environment
Cloning because offspring that are exact copies are produced
Cloning because offspring would be produced in a few hours

Answers

Answer:

the 3rd option: Cloning because offspring that are exact copies are produced

Explanation:

Biotechnology is a field of science that comprises biology combined with technology. It utilises the living system with the technology to build products.

The correct answer is:

Option C. Cloning because offspring that are exact copies are produced.

This can be explained by:

Cloning is a mode of reproduction in which the replica of the parent is produced as offspring.

The genetic content of the offspring is the same as that of the parent. Hence all the traits and the characters remain preserved.

Therefore, for deliberately producing the endangered species cloning technique can be employed.

To learn more about cloning follow the link:

https://brainly.com/question/12483409

Please help now I need it. You need to develop a demonstration to show evidence of how cellular respiration and photosynthesis depend on each other. Your presentation will show how cellular respiration is the process by which all cells transform food into energy, whereas photosynthesis is the process by which plants obtain food. Your experimental design should show evidence of how cellular respiration and photosynthesis depend on each other.

Answers

I may not be able to make you a presentation, but I can help you on the idea behind it. Photosynthesis is 6 Carbon dioxide 6 water and light to make glucose and oxygen. With cellular respiration, its the opposite. Glucose + oxygen to break it down and forms waste products of 6 carbon dioxide and 6 water. The main thing it produces though is ATP (Adenosine Triphosphate). ATP is the product of cellular respiration and is fuel for your cells to function. I hope this helps. There are different stages in photosynthesis and cellular respiration that I’m not going to dive into, but this is the main reason why they depend on each other. Because unlike humans where we eat food, they use photosynthesis to make their glucose which they turn into ATP energy. Think I covered most of it. Good luck on your presentation!

Plants that are grown from undifferentiated cells of leaves, stems, or roots are produced by
A) fusion of spores
B) vegetative propagation
C) sexual reproduction
D) fission of gametes

Please help its due in two hours.

Answers

i think it’s B, but i could be wrong
It’s probably B but tell me if I’m wrong.

How are convex and concave lenses used?

Answers

Answer:

Telephoto Lenses Are Combinations of Convex and Concave Lenses. Most optical devices make use of not just one lens, but of a combination of convex and concave lenses. For example, combining a single convex lens with a single concave lens enables distant objects to be seen in more deta

Explanation:

Telephoto Lenses Are Combinations of Convex and Concave Lenses. Most optical devices make use of not just one lens, but of a combination of convex and concave lenses. For example, combining a single convex lens with a single concave lens enables distant objects to be seen in more deta

PLEASE HELP ASAP!! I WILL MARK BRAINLIEST!!
Why do you think the food dye mixed at different rates?

Answers

Answer:

The food coloring mixes through the hot water faster than it mixes with the cold water. This is because in hot water, the water molecules have more energy and are moving faster than the molecules of cold water. This makes it easier for the dye to get mixed throughout the hot water.

Hope this helps!! (Please mark Brainliest if possible!!)

The hot water causes the food coloring to diffuse faster. At higher temperatures, particles move faster. This faster movement allows diffusion to occur more quickly

A) How long will it take for 40.0 grams of Radium-226 (Ra-226) to decay to leave a total of 2.5 grams of Ra-226? Ra-226 has a half-life of 1600 years.


B) If there are 80.0 grams of Neptunium-240 (Np-240), how much Neptunium-240 will remain after 4 hours? The half-life of Neptunium-24 is 1 hour.

Answers

Answer:

a) 6400 years

b) 5 grams

Explanation:

a) to get 6400 years, the 40 grams is halved 4 times to get to 2.5g and 4 times 1600 is 6400

b) 80 is halved 4 times and the final result you get is 5 grams

80/2= 40/2= 20/2=10/2=5

each divided by 2 represents 1 hour

Answer:

[ A ] 6400 years

[ B ] 5 grams

Explanation:

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

Answers

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.


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.

What could Carl Linnaeus no have used as a method of classification in his taxonomy system ?
A. DNA
B. the habitats of organisms
C. structure of organisms
D. apperance of organisms

Answers

Answer:

i dont know thats a hard one

Explanation:

Think about what abiotic factors giraffes and trees both need to survive. The tree and the giraffe are competing over what factor

Answers

They would fight over water and nutrients and most importantly sunlight as both will be around the same height and also would want space but again the giraffe will eat the trees leaves and it will later die so it’s basically like survival of the fittest

(BRAILIIEST) Can someboody halp me with this

Answers

Answer:

The answer you are looking for is B. The gravitational pull of the moon

Explanation:

The moon influences tides the most. The moon's gravitational pull on the earth is strong enough to tug the oceans into bulge

Answer:

B.

Explanation:

I don't know how to explain but I was always told the moon effected/affected

the tide.

Which answer correctly explains the difference between sleet and hail?
A. Sleet is larger than hail and both forms of precipitation usually fall in the winter.
B. Sleet is usually part of a thunderstorm, and hail comes from thin layers of rain clouds.
C. Sleet and hail are the same except that sleet usually falls in summer and hail usually falls in winter.
D. Sleet is ice that forms when snow falls through multiple levels of warm and cold air, and hail is rain
that freezes multiple times and hits the ground as a round, chunk of ice.
Will give brailiest +10pts

Answers

Answer:

D

Explanation:

makes the most sense

The answer is C :) yw

When the moon passes through the Earth's shadow, a ______ eclipse occurs.
A. partial
B. full
C. lunar
D. solar

Answers

D. Is the answer d d d d d d. D d d d dd d d
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