what element was poisonous to the first forms of life on Earth until they evolved to take advantage of it by using cellular respiration.

Answers

Answer 1
Oxygen was poisonous

Related Questions

How many phosphate groups does an ATPmolecule have? 1 2 3 4

Answers

Answer:

They have 3

Explanation:

ATP is a nucleotide consisting of an adenine base attached to a ribose sugar, which is attached to three phosphate groups

Hope this helps (:

They have 3 molecules

What is the first thing you notice about Edward Cullon? #bigfanofTwilightsereis

Answers

Answer:

his pale skin

Explanation:

:D

Answer:

That he has green eyes in real life. Also that his ears are really flat agienst his face lol.

Explanation:

Which statement best describes why are US forest service is important
I think it i a

Answers

What are the statements lol

Answer:

US forest service is important because it "enforces federal wildlife laws, helps foreign governments with international conservation efforts, and protects ecosystems".

Explanation:Hence it is important to protect the wildlife globally and enhance the ecosystem of our planet. The US forest service deals with the federal wildlife laws. Hope this helped! :)

and next time give them the choices

Which idea did lsaac Newton s experiments with light support?
A. light is produced by the interaction of magnetic and electric fields.
B. light is a wave because it has properties that are similar to radio waves.
C. light is made of particles because it travels only in a straight path.
D. light is a wave because it bends around barriers.​

Answers

Answer:

C. light is made of particles because it travels only in a straight path.

Explanation:

Edge2022

Answer:

C

Explanation:

At the circle justice meeting, who's voice made
Cole explode? Do you think Cole's thought's and
resentment toward his father will change while
he's on the island? Why or Why not?

Answers

Jajajsjjsjsjsjsjsjjsjsisisisisi

Answer:

nah

Explanation:

How does the level of salinity in ocean water affect marine life?

Answers

it can result in additive, antagonistic or synergistic effects on organisms.

identifica las causas de promovieron el descontento Popular en la Francia de 1789 para ellos tomarás en cuenta las causas económicas sociales políticas e ideológicas​

Answers

La Revolución Francesa fue una revolución de ideología liberal que tuvo lugar en 1789, y que se originó por los siguientes factores:

La monarquía en Francia era una monarquía absoluta construida sobre una sociedad feudal donde el rey, según la creencia tradicional, recibió su poder autocrático de Dios. La Iglesia católica tuvo una gran influencia, y los pertenecientes a las clases altas, sacerdotes y nobleza, estaban exentos de impuestos y también podían recaudar impuestos para sus propios fines. La carga fiscal de Francia descansaba enteramente en el tercer estado, que eran los campesinos y los ciudadanos. Estos fueron excluidos de las oficinas del estado, que estaban reservadas a la nobleza. Francia también había participado en guerras costosas, lo que condujo a impuestos más altos. Al mismo tiempo, las ideas de la ilustración se difundieron entre los académicos dentro de la burguesía y, por lo tanto, las ideas de que se podía establecer una monarquía constitucional y conquistar derechos para otros en la sociedad que no fueran el rey y la nobleza. El antiguo orden social se había vuelto cada vez más obsoleto e ineficaz durante el siglo XVIII. Los impuestos se distribuyeron injustamente tanto por clases como por regiones. El enorme aparato estatal se había convertido en un fin en sí mismo para una burocracia privilegiada. Las diferencias entre la fastuosa vida de lujo de la corte y la nobleza y la hambruna de las grandes masas dieron lugar al descontento.

Aprende más en https://brainly.com/question/9053584

Which series of transformations will move the triangle in quadrant I onto the similar triangle in quadrant III

Answers

Answer:

Its D

Explanation:

Move your triangle down in your mind(the top right one) and then rotate it 90 degrees counter clockwise (simple maths)

martin luther king jr was a great guy

Answers

Answer:

Yea

Explanation:

Answer:

I kno he was

Explanation:

Read the passage from a text about the rain forests of South America.

The Importance of Rain Forests

Rain forests clean the air by producing oxygen. Some rainforest plants have healing properties and can be used as medicine. Rain forests are also known to affect the water cycle and weather. The threat of deforestation, however, means these important rain forests may disappear.

Which keywords would students most likely want to include in their notes?

A.) rain forests, deforestation, water cycle
B.) rain forests, however, disappear
C.) weather, used, plants
D.) plants, affect, threat

Answers

I think it is letter C weather used plants

Answer:

I believe the answer is A , but please correct me if i am wrong.

Explanation:

The nucleus of an atom contains protons and neutrons. true or false

Answers

Answer:

TRUE

...............

Answer:

True.

Explanation: Atoms consist of three basic parts: protons, neutrons, electrons. The nucleus contains the protons which have a positive charge, and the neutrons which have no charge. I really hope this helped!

Hello, I'm a freshman in high school and my goal at the end of high school is to be able to get into an Ivy League school like Columbia or Princeton. I know it's a big goal but hopefully with hard work, dedication, and the right mindset I can do it. Does anyone have any tips on how I can achieve that? What would be a good place to start, since I'm in my first year of high school? What grades should I try to aim for this year?

Answers

All school have different "preferences" for applying individuals- but with ivy league schools there aren't "preferences" there are "musts".

-

GPA:

Ivy league schools, like Columbia or Princeton, require you to atleast a GPA of 3.9. This means that you should aim for straight A's every school year. But, usually the first year of highschool isn't treated as such as high importance as the other years of highschool, but this doesn't mean that the grades doesn't matter.

Classes:

Ivy league schools require you to be in the top classes, so it's important to try to always take the more difficult classes and AP classes. Ivy league schools want you to stand out, so it's important to be in the top of your classes.

SAT & ACT:

The SAT & ACT are extremely important. If your GPA falls behind a little bit, to a 3.6-3.8, either one of these can save you. You only have to do either the SAT or the ACT, not both. The SAT score you should aim for is: 1510 (But if your GPA is down a little bit, you should aim for 1560). The ACT score you should aim for is: 33-35.

Extra:

Like I said before, Ivy league schools want you to stand out. It's important to make yourself stand out and show that you are determined. Clubs, community organizations, internships, jobs while in highschool, and awards are a great way to do this. Grades and your academics are extremely important, but Ivy league schools want character.

TIPS:

What would be a good place to start, since I'm in my first year of high school?

I suggest start researching a potential school you want to achieve. Understand the acceptance rates, and if you have the availability, take a student tour! Of course, with everything, in person tours are canceled, but you could do a virtual one online. It would also be good to start on maybe clubs or community projects.

What grades should I try to aim for this year?

I suggest aiming for straight A's, but like I said before: The first year isn't treated with as importance as the other years. A GPA of at least 3.7 would be a great starting goal.

Nina made her career planning timeline in the year 2005. In what year should Nina's timeline start? OA. 2007 O B. 2005 OC. 2008 O D. 2006​

Answers

Since Nina made her career planning timeline in the year 2005, the year which Nina's timeline should start is: B. 2005.

What is chronology?

Chronology can be defined as the logical arrangement of events based on the order of their occurrence.

What is a timeline?

A timeline can be defined as a list of important events or activities that are arranged in a chronological sequence, which is the order in which they happened (occurred).

In this context, we can reasonably infer and logically deduce that the year which Nina's timeline should start is 2005 because Nina made her career planning timeline in the year 2005.

Read more on timeline here: brainly.com/question/19114437

#SPJ1

find the unit rate $122 in 8 hours

Answers

$15.25 per hour

122 divided by 8
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alo
Empirical Method: A coin is tossed 500 times and comes up heads 280 times. Use the Empirical Method to approximate the
probability that the coin comes up heads. Round your answer to four decimal places as necessary.

Answers

Answer:

empirical method states that 68% of data falls between 1 standard deviation of the mean, 95% between 2 standard deviatiosn from the mean, and 99.7% from 3 standard deviations from the mean

Explanation:

50% chance of landing on heads

You see, unless both sides of a coin are the same, it will always be a 50/50 outcome. No matter how many times you flip the coin, the chance will not change. The coin pretty much relies on luck if you think about it

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