The sky of early Earth was probably pinkish-orange. As life became established, the sky turned blue. What was responsible for the color change?

Answers

Answer 1
Earth’s atmosphere had little to no oxygen. It was composed of carbon dioxide, water vapor, and nitrogen, with lesser amounts of carbon monoxide, hydrogen sulfide, and hydrogen cyanide. Because of these gases in the atmosphere, the sky was probably pinkish-orange. Meaning once earth obtained more oxygen the sky turned blue.

Related Questions

Question 17 (1 point)
Larry is about to be introduced to Paul. Larry has learned from an acquaintance that
Paul tends to be quiet, shy, and withdrawn. Larry may be more likely to assume that
Paul works as a librarian, rather than a construction worker. Which of the following
best represents Larry's assumption?

Answers

Larry's assumption is best represented by a Librarian being an occupation that doesn't really require interaction with people and possess features common to it.

Who is a Librarian?

This is an individual who is responsible for overseeing the daily operations of a library at the public or private level.

He/she  checks for books people want with a lower degree of interaction when compared with a construction worker.

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What color is reflected back to cause plants to appear green?

Answers

Answer:

Chlorophyll gives plants their green color because it does not absorb the green wavelengths of white light. That particular light wavelength is reflected from the plant, so it appears green.

Chlorophyll absorbs light in the red (long wavelength) and the blue (short wavelength) regions of the visible light spectrum. Green light is not absorbed but reflected, making the plant appear green. Chlorophyll is found in the chloroplasts of plants.

Chlorophyll absorbs light most strongly in the blue portion of the electromagnetic spectrum, followed by the red portion. Conversely, it is a poor absorber of green and near-green portions of the spectrum, hence the green color of chlorophyll-containing tissues.




Explanation:

Have a great rest of your day
#TheWizzer

Because chlorophyll does not absorb the green wavelengths of white light, it is chlorophyll that gives plants their green color. Thus, the correct option is B.

What is Chlorophyll?

Chlorophyll is a pigment that is found in all green plants as well as some other species. It is crucial for the process of photosynthesis, which transforms light energy into chemical energy.

The chlorophyll pigment is in charge of giving plants their characteristic green hue since it does not absorb the green portions of white light; as a result, the plant reflects the particular light wavelength, giving it the appearance of being green.

Since chlorophyll is a poor absorber of the green and near-green portions of the electromagnetic spectrum, tissues containing chlorophyll are green in color. Chlorophyll absorbs light most powerfully in the blue and red portions of the electromagnetic spectrum.

So, the correct option is B.

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Identify three functions preformed by organ systems

Answers

Answer:

The question you've asked is not clear, you haven't specified which organ system are you talking about. No worries, I've noted down key functions of 11 organ systems of the human body, you can pick any of them that you want.

Some of the main functions of the 11 organ systems include the following:

Skeletal system:

shape/support for the body

protect some organs (brain, heart, lungs, spinal cord, etc.)

mineral storage (e.g., Ca and P)

site for muscle connections

site for blood cell formation

Muscular system:

movement

since there are three types of muscle—cardiac, smooth, and skeletal—there are specific functions for all of these

Cardiovascular system:

pump blood throughout the body

the blood will transport nutrients, oxygen, waste, and hormones

the blood also functions as a part of the immune system and allows the white blood cells/antibodies to gain access to infected/wounded areas

Excretory system:

produce and store urine in the kidneys and bladder

release urine through the urethra

Digestive system:

digest food into nutrients that can be absorbed

absorb nutrients

make certain vitamins (e.g., Vitamin K is made by bacteria in the large intestine)

Reproductive system:

the main function here is to produce offspring

another function—in line with the endocrine system— is to make hormones (e.g., testosterone and estrogen, which affect male and female characteristics)

Endocrine system:

hormone production

these hormones act throughout the body performing multiple jobs (e.g., blood sugar levels [insulin/glucagon], growth [growth hormone], male characteristics like facial hair [testosterone]

Integumentary system:

this is the skin

protection from some pathogens (unless you get a cut)

sensations at the skin level (texture, heat, pressure, pain)

Nervous system:

made of the central (brain and spinal cord) and peripheral nervous systems

this system transmits signals from one part of the body to another and this includes your senses

Respiratory system:

this mainly includes your lungs and trachea

the main function is the exchange of gases (oxygen and carbon dioxide)

Immune system:

the main function is to defend the body against pathogens

this is done with the help of the cardiovascular system which has white blood cells and antibodies in the blood

How does resource availability, such as water, drive competition?

Answers

Answer:

If there was less water, then there would be more competition, since now a population has to live off of a little bit of water. Similarly, a lot of water would result in less competition, since now the water will basically be more available, and not something that two animals might have to fight over.

Based on your knowledge of energy flow and light absorption, which color(s) of light will not provide energy for photosynthesis? (select all that apply) question 3 options: red orange green blue violet

Answers

Answer:

Red light has the longest wavelength and the least energy, while violet light has the shortest wavelength and the most energy.

Explanation:

Yw

Answer:

RED and BLUE

Explanation:

Special pigments in chloroplasts of plant cells absorb the energy of certain wavelengths of light, causing a molecular chain reaction known as the light-dependent reactions of photosynthesis. The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm).

What is the correct order of structures that a piece of food would encounter as it travels through the alimentary canal of a bald eagle?.

Answers

The correct order of structures is mouth, oesophagus, crop, stomach(proventriculus), gizzard, intestine, and anus.

The digestive tract of birds

The digestive tract of birds starts from the mouth and ends at the anus.

As the food enters the oesophagus through the mouth, it is pushed down to the first stomach called the proventriculus.

Hydrochloric acid, mucus and a digestive enzyme, pepsin, are secreted by specialized cells in the proventriculus and start the process of breaking down the structure of the food material.

Food substances that are hard to digest are transferred to the gizzard. Nutrients are absorbed in the intestines and undigested food substances are removed through the anus.

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During signal transduction in a rod cell, the sensory signal is amplified when:.

Answers

Answer:

it's amplified when there is results in hyperpolarization of the sensory cell.

NO LINKS AND NO FAKE ANSWERS. Rather than push a heavy box from one room to another, a worker chooses to place the box on a wheeled cart. In terms of friction, explain why moving the box on the wheeled cart is easier than pushing.

Answers

Answer:

The reason why that pushing something on a cart is easier than pushing it around without a cart is very simple actually. Pushing something on a cart is much easier because there is a much smaller act of friction. This results in a smaller strain on the body.

Explanation:

There isn't really a need for an explanation because it's that simple. I don't blame you for not knowing it though. People don't know everything.

1.which organelle contain the enzayme needed to synthesize ATP in the presence of oxygen​

Answers

Explanation:

I think mitochondria.....

Which of the following is NOT considered a biological Property of life?
Lack of responsiveness
Being able to reproduce
Being able to carry out metabolism
Made of one or more cells

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

➼ The Correct choice is A

Lack of responsiveness

Responsiveness isn't a biological factor that affects life, so it's not suitable according to the condition specified by question.

Among the options given, a lack of responsiveness is not considered a biological property of life. Thus, the correct option for this question is A.

What are the biological properties of life?

The biological properties of life may be characterized as those properties of characteristics that are eventually required for their ideal survival and make them a unique form of organisms created over the universe.

These properties may significantly include order, sensitivity or response to the environment, reproduction, adaptation, growth and development, metabolism & regulation, homeostasis, energy processing, and evolution.

A cell is the fundamental structural and functional unit of life. So, every living organism is made of one or more cells.

Therefore, a lack of responsiveness is not considered a biological property of life. Thus, the correct option for this question is A.

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Why must males inherit colorblindness from their mothers.

Answers

Answer:

below

Explanation:

B/c (red-green) color blindness is found on X-chromosome and males take X-chromosome fron their mother and Y-chromosome from their father.

In recent decades, average global temperatures have increased significantly. Scientists agree that the widespread destruction of the Amazon rain forest contributes to climate change. Which mechanism might be cited to support that hypothesis?

A Deforestation causes water on the ground to reflect sunlight.

B Deforestation reduces the number of plants able to absorb carbon dioxide.

C Photosynthesis produces energy, which gives off heat.

D Plants use up energy during cellular respiration.

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}♨[/tex]

The main reason causing average global temperature rise is increase in amount of green house gases like Carbodioxide, and since deforestation reduces a vast number of plants, so there is lack of plants absorbing CO2 causing this whole thing.

So, according to this the Correct choice is B

The mechanism that supports the hypothesis that the widespread destruction of the Amazon rainforest contributes to climate change is  Deforestation reduces the number of plants able to absorb carbon dioxide. The correct option is B.

Forests, like the Amazon rainforest, play a crucial role in mitigating climate change because trees act as carbon sinks. They absorb carbon dioxide during photosynthesis and store it as biomass. When forests are cut down or destroyed through deforestation, the carbon stored in trees is released back into the atmosphere in the form of carbon dioxide, a greenhouse gas that contributes to global warming.

The Amazon rainforest, often referred to as the "lungs of the Earth," is particularly vital in this regard because of its vast size and high biodiversity. As large areas of the forest are cleared for logging, agriculture, and other human activities, the ability of the Amazon to absorb carbon dioxide diminishes, leading to increased greenhouse gas concentrations in the atmosphere and contributing to the warming of the planet.

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What is the first part of an experiment and
becomes the basis of what you are testing?
A. the results of the experiment
B. the dependent variable
C. a hypothesis
D. the control group

Answers

The answer is c the hypothesis

Passage 1: Two or more individuals trying to use the same resource, such as food, water, shelter, space, or sunlight, is called competition. Because resources are in limited supply in the environment, the use of them by one individual or population decreases the amount available to other organisms. Competition also occurs between individuals within a population. The elk in Yellowstone National Park are herbivores that compete with each other for the same food plants in the park. According to passage 1, competition occurs between which of the following?

Answers

Answer:

between individuals

Explanation:

Given in paragraph

Please help + I will give brainiest - Why do seismographs work best underground? Would a seismograph be accurate if they were located on top of Earth's surface?

Answers

seismographs work best underground because it detects and measures Earth's ground motion so it works better if it’s underground in the earth.

Seismographs won’t be able to detect the small earthquakes if it was above ground because it moves when the ground shakes.

Lyme disease is an example of a(n) ______ infectious disease, because it is only seen in areas of the US where the tick vector for the pathogen is found.

Answers

Lyme disease is an examples of vector borne infectious disease.

What is Lyme disease?

Lyme disease is also called Lyme borreliosis, is an example of a vector-borne disease whose causative agent is Borrelia bacterium and it is transmitted by tick in the genus Ixodes. The common sympyoms of the infection is red rash, known as erythema migrans, which appears at the site of the tick bite.

Therefore, Lyme disease is an examples of vector borne infectious disease.

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Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.

What is an endemic infectious disease?

It refers to the constant presence and/or habitual prevalence of a disease or an infectious agent in a population of a geographic area.

Lyme disease is a borreliosis transmitted by ticks of the genus Ixodes that seems to be limited to certain geographic areas of the US, therefore it is considered endemic.

Therefore, we can conclude that Lyme disease is a disease transmitted by the bite of an infected tick and is an example of an endemic infectious disease.

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Parrotfish live in the ocean and eat plantlike organisms called algae. Sunlight is shining
on the fish and the algae.
is carbon moving into the living things, moving out of the living things, or both?
Carbon is moving into and out of the living things, at the same time.
Carbon is only moving into the living things; it is not moving out of them.
Carbon is only moving out of the living things, it is not moving into them.
There is no way to know for sure, with this information.

Answers

Answer:

Carbon is moving into the living things, but not out. While algae conducts photosynthesis (which produces oxygen), it does not create carbon since oxygen has no carbon molecules. Since all living things are made of carbon (which the fish is consuming), and the plant also absorbs the carbon   of in the ocean to assist in photosynthesis, both are consuming carbon.

Explanation:

Apply what you have learned about forces to explain what is happening as you go sailboarding. Describe the forces and how they affect your motion. DO your velocity and acceleration chabge during the ride?

Answers

The forces and how they affect your motion include the following:

WeightBuoyant force - the contact force with the water that pushes the boat up Forward force of the windBackward drag of the water.

What is Sailboarding?

This is an outdoor activity in which someone stands up on a board connected to a mast and sail.

The velocity and acceleration changes during the ride because the forces acting on the body aren't constant.

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What natural features are important in the transfer of sand from one side of an inlet to the other:

Answers

Answer:

What causes sand to move along a beach?

Sand grains move along the shore and up and down beaches because of currents made by waves. Waves break when they reach shallow water, creating turbulence. This area is called the surf zone. When waves break, some of the force is turned into currents

The natural features that are important in the transfer of sand from one side of an inlet to the other may include weathering and erosion.

How does sand move along a beach?

Sand grains move along the shore and up and down beaches because of currents made by waves. Waves break when they reach shallow water, creating turbulence. This area is called the surf zone. When waves break, some of the force is turned into currents.

Most beaches get their sand from rocks on land. Over time, rain, ice, wind, heat, cold, and even plants and animals break the rock into smaller pieces. This weathering may begin with large boulders that break into smaller rocks. Water running through cracks erodes the rock. They also prevent seawater from entering wells and ponds.

Therefore, the natural features that are important in the transfer of sand from one side of an inlet to the other may include weathering and erosion.

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Weathering, erosion, and deposition are three natural processes that change the face of the Earth.

Look at the three examples below and identify which process they each represent.

Answers

Explanation:

Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion.

The hormone ________ signals feelings of fullness to the brain.

Answers

Answer:

leptin

Explanation:

Another hormone, Leptin, produced by fat cells, is an Adiposity signal that communicates with the brain about long-range needs and satiety, based on the body's energy stores. Research suggests that Leptin amplifies the CCK signals, to enhance the feeling of fullness

True or False water particles are not actually water molecules
True or false

Answers

True because the water molecules are only present in condensation processes and within droplets of water.

What nitrogen base in found in RNA but not in DNA?

Answers

Answer: It is Uracil!

Explanation: In single-stranded RNA, uracil is the only nitrogenous base found. In DNA, it is not found.

What are ecosystem services? provide two examples and explain how these services benefit people. (site 1)

Answers

Ecosystem services is an expression that makes reference to different uses derived from the natural environment (ecosystems).

What are ecosystem services?

The expression 'Ecosystem services' makes reference to different uses that humans make from the natural environment.

These services include has both social and economic importance for human activities (e.g., tree extraction and deforestation).

Thus, Ecosystem homeostasis is fundamental for the development of a society and it should not be exploited.

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Answer:

Ecosystem Services refer to the benefits that humans receive from the natural environment. They are the various processes and functions that ecosystems provide, such as the purification of air and water, nutrient cycling, and the provision of food, fuel, and fiber. Ecosystem Services are crucial for human survival and well-being, and they are essential for maintaining the balance of the planet's natural systems. One example of an ecosystem service is the pollination of crops by bees and other insects. Pollinators are responsible for fertilizing flowers, which allows plants to produce fruits, vegetables, and seeds. Without pollinators, many crops would not be able to produce a yield, resulting in a significant reduction in food production. Additionally, pollinators are essential for maintaining the diversity of plant species, which is essential for the health of ecosystems. The economic value of pollination services has been estimated to be worth billions of dollars annually. Another example of an ecosystem service is the role of wetlands in mitigating flooding and reducing erosion. Wetlands act as natural sponges, absorbing and storing water during heavy rainfall and releasing it slowly over time. This helps to reduce the risk of flooding downstream and prevents soil erosion. Wetlands also provide important habitats for a diverse range of plant and animal species, which supports the overall health and resilience of ecosystems. The economic value of wetlands in terms of flood control and erosion prevention has been estimated to be worth billions of dollars. In conclusion, ecosystem services are essential for human well-being and the health of the planet's natural systems. They provide a wide range of benefits, including food production, water purification, flood control, and erosion prevention. The examples of pollination and wetlands demonstrate how ecosystem services benefit people by supporting food production and reducing the risk of natural disasters. It is important to recognize the value of ecosystem services and to take steps to protect and conserve them for future generations. 

Explanation: 100% on edge!

unifying scientific explanation supported by testing
Unscramble the word.
RYTHOE

Answers

Theory ;)



explanation:



Im just cool like dat ;)

Answer:theory

Explanation:

it stood out to me

Match de word with the correct definition

Answers

1. e
2. f
3. b
4. a
5. g
6. h
7. i
8. d
9. c

A single-cell organism can do everything a cell from a multicellular organism can do except

Answers

Answer:

specialize

Explanation:

Part F
The rate at which an object weathers is determined by many different variables. For example, compare the two ancient
Egyptian structures below.
Both structures were carved in Egypt from the same type of rock more 1,000 years ago. However, the obelisk in New York
which was transported there from Egypt in 1881, has since experienced a much higher rate of weathering. What factors
likely sped up the weathering process for the structure that was moved to New York?

Answers

Answer:

One thing that can speed this is up is a building not being vacant or being in direct sunlight for far too long.

I think this is what you need, right?

I need help ahhhhhhhhhh

Answers

Answer:

C.B.A.D.The prophase is the first part of cell division, where the chromosomes become visible in the form of paired chromatids.The telophase is the final phase of cell division in which the chromosomes move to opposite ends, and nuclei are formed. Although this most relates to option D, option D relates more to the anaphase, which we will talk about in just a moment.The metaphase is the second phase, where the chromosomes all line up at the equator, and they attach to spindle fibers.The anaphase, which is the phase after metaphase, is extremely nessescary for cell division. This is the process in when the chromatids move toward opposite poles, allowing the spindle fibers to shorten. When this happens, the cell splits in two, forming the two daughter cells.

________________________________________________________

What have we learned?

We learned the four phases of mitosis, and what they do.

Questions related to the topic? Ask me in the comments box.

Which option provides the correct order of the subgroups for the classification of living things that are nested within the category Family,
from broadest to narrowest?
O Genus, Species
O Class, Order
Order, Genus
O Domain, Kingdom

Answers

Genus, species provide the correct order

of the subgroups for the classification of living things that are nested within the category Family,from broadest to narrowest.

What is classification of living organism?

Classification of organisms refers to the systematic way organisms are classify base on their characteristics.

The taxonomic rank used while classifying organisms and employ by the nomenclature codes. The ranks in descending order are: life, domain, kingdom, phylum, class, order, family, genus, and species, with order fitting in between class and family.

Therefore, Genus, species provide the correct order of the subgroups for the classification of living things that are nested within the category Family.

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