HELP!

The answer to which of these scientific questions would MOST likely explain why all life on Earth is
based on carbon?
O A. How many carbon isotopes are stable?
O B. How much carbon is found in Earth's crust?
O C. What are the naturally occurring states of carbon?
D. What is the configuration of carbon's valence shell?

Answers

Answer 1

Answer: A is the answer

Answer 2

Answer:

D. What is the configuration of carbon's valence shell?

Explanation:

Carbon is considered special and very versatile because of the number of valence electrons it has. Because it has four valence electrons, it's able to combine with many other elements, which makes it an essential building block of life.


Related Questions

Which one of the following is true of the structures labeled D in the cell membrane?A.They are membrane proteins.B.They are hydrophilic.CThey are carbohydrates.D.They are hydrophobic?

Answers

The structure labelled D in the cell membrane is hydrophilic in nature. That is option D.

What is phospholipid bilayer?

Phospholipid bilayer is defined as the part of the cell membrane that is made up of two phospholipid layers which include:

Hydrophobic layer: The interior which is water hating

Hydrophilic layer: The exterior that is water loving.

Therefore, from the diagram, the structure labelled D is the interior part of the phospholipid bilayer which is hydrophilic in nature.

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7The [BLANK] cell's function is to send electrical impulses around the body.

Answers

Answer:

nerve

Explanation:

Your neurons carry messages in the form of electrical signals called nerve impulses. ... Over half of all the nerve cells in your nervous system do not transmit any impulses. These supporting nerve cells are located between and around your neurons to insulate, protect and nourish them.


What are the functions of sugars

Answers

Answer:

the provide the energy u need

Explanation:

Which are limiting nutrients for plant growing
•water and nitrogen
•nitrogen and carbon
•carbon and phosphorus
•phosphorus and nitrogen

Answers

Answer:

phoshorus and nitrogen

Explanation:

isnt 1 or 2 and i dont think its 3 so that leads me to 4

Answer: phoshorus and nitrogen is the correct answer.

An atomic bomb goes off when you ___ atom

Answers

An atomic bomb goes off when you split atom

Every time the planet reinvents itself its inhabitants adapt and evolve. Explain how Ichthyosaurs evolved from land dwelling reptiles. How long did Ichthyosaurs rule the oceans?

Answers

Answer:

Ichthyosaurs lived from Triassic to Middle Cretaceous approximately 250 million years ago until 110 million years ago

Explanation:

Ichthyosaurs evolved during the early Triassic period from land reptiles. This group was characterized by a spindle-shaped body, a shoulder girdle connected to a streamlined skull, two pairs of limbs, and digit-like bones. Moreover, Ichthyosaurs drew oxygen from the atmosphere (i.e., like marine mammals). Utatsusaurus is the oldest known Ichthyosaur species and it lived during the Lower Triassic. ln the same way to the land reptiles, Utatsusaurus had a pelvic girdle attached to the spine, and an equal length between the humerus and femur.

all the living and nonliving things in a selected area form a (an)?​

Answers

Answer:

All the living things together in an ecosystem form a community.

Explanation:

The answer is a community

Most carbohydrates in the human body are-
A. used as building blocks for proteins
B. used as catalysts for reactions in cells
C. consumed as a source of energy
D. not easily absorbed into the bloodstream

Answers

Answer:

C/D

Explanation:

Most of the carbohydrates in the foods you eat are digested and broken down into glucose before entering the bloodstream. Glucose in the blood is taken up into your body's cells and used to produce a fuel molecule called adenosine triphosphate (ATP) through a series of complex processes known as cellular respiration.

(SUMMARIZED ANSWER: One of the primary functions of carbohydrates is to provide your body with energy. Most of the carbohydrates in the foods you eat are digested and broken down into glucose before entering the bloodstream)

Which type of molecule that can be found in living things lacks carbon atoms? Protein Carbohydrates Fat Water

Answers

Water - only consists on Oxygen and hydrogen

Carbohydrates- carbon hydrogen oxygen

Fat- consists of hydrocarbon chains

Proteins - has a central carbon

Answer:

d

Explanation:

Pick up line for chlorplast?

Answers

Are you a chloroplast? Because you chlorophyll my heart. <33

There's this one:

"are you a chloroplast? Because you chlorophyll my heart <3"

A proton the nucleus. A neutron the nucleus. An electron the nucleus.

Answers

Answer:

atom iscomposed of three sub-atomic particles

   proton

   neutron

   electron  

           

           Protons and neutrons make up the nucleus of the atom, a dense and positively charged core, whereas the negatively charged electrons can be found around the nucleus.

Explanation:

Answer:

proton

  neutron

  electron  

Explanation:

Which of the following might have influence whether or not a comet will collide with a nearby planet

-The ice and dust the comet is composed of

-The composition of the planets atmosphere

-gravitational attraction between two celestial objects

-none of the above

Answers

Gravitational attraction between two celestial objects (i think)

why you add water to Sulphur dioxide and put a blue Litmus Paper in it why does it turns red​

Answers

Answer:

Because it produce weak acid and acid turns blue lithmus paper to red.

Explanation:

Sulphur dioxide SO2 react to added water to produce acidic product.

When sulphur dioxide react with water, it produce sulphurous acid H2SO3 which is a weak acid.

One of the properties of acid is that they turn blue lithmus papper to red, because the product is an acid, blue lithmus papper turns to red.

A population is growing at a rate of 2, 4, 8, 16, 32. Which type of growth does this describe? linear logistic exponential negative

Answers

Exponential because you multiply the previous answer by 2

A population that is growing at a rate of 2, 4, 8, 16, 32 shows a type of growth known as exponential growth.

What is exponential growth?

Exponential growth is a type of growth where quantity is increased in an order of magnitude for a given period of time.

In biology, exponential growth is seen in populations having sudden expansions.

In conclusion, a population that is growing at a rate of 2, 4, 8, 16, 32 shows a type of growth known as exponential growth.

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Is a dung beetle and decomposer

Answers

Yes it is. It as classified as a decomposed

Sorry did not mean to do this!

Answers

I've done this too lol it's fine

The major organic macromolecules are include all of the following EXCEPT- >
a. carbohydrates
b. water
c. proteins
d. lipids
e. nucleic acids

Answers

Answer:

water

Explanation:

all are except water

Answer:

water

Explanation:

Evidence 2 - Unknown Substance Investigation A group of scientists is given a sample of an unknown substance. They are asked to gather evidence to determine whether the substance is living or nonliving. The students take a small sample of the substance and observe it using a microscope. Part A: State and define two properties of life present in the substance that could be observed to indicate whether it is living or nonliving.

Answers

Answer:

Water , Oxygen

Explanation:

Explain why

Describe Range: (idk)

Answers

Answer:

Well if you mean species,  it means the range or distribution of a species is the geographical area or habitat where the species live.

Explanation:

It would help if you could be more specific, But i hope it helps!!

Match each scientist to the observation she is most likely to make

Answers

The first one is hydrologist
The second one is meteorologist
The third one is geologist
The fourth one is astronomer

In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a vase that has
red-colored water.
She forms a hypothesis that the color reaches the flower through the stem. What should Maria do to confirm the hypothesis?
A. She should repeat the experiment with the same type of flower and photograph the changes over time.
B. She should ask her science teacher about the flower to confirm whether her hypothesis is correct.
C
She should try the experiment with a potted plant with roots and observe any color changes.
D
She should repeat the experiment with a different species of plant and photograph the changes.

Answers

Answer:

D

Explanation:

Its d I think tell me if it's wrong If it is I'm sorry

Answer:

A.

She should repeat the experiment with the same type of flower and photograph the changes over

Explanation:

How are the careers of an oceanographer and hydrologist similar? How are they different?

Answers

Answer:

An oceanographer is one who studies the attributes of the ocean like temperature, waves, currents and tides geology of the sea floor. And a hydrologist is one who researches the distribution, circulation and physical properties of underground and surface waters.

Answer:

An oceanographer is one who studies the attributes of the ocean like temperature, waves, currents and tides geology of the sea floor. And a hydrologist is one who researches the distribution, circulation and physical properties of underground and surface waters.

Explanation:

Homologous pairs separate in meiosis _________, and sister chromatids separate in meiosis _________.

Answers

Answer:

Meiosis I

Meiosis II

Explanation:

Homologous pairs of cells are present in meiosis I and separate into chromosomes before meiosis II.

In meiosis II, these chromosomes are further separated into sister chromatids. 

Meiosis I includes crossing over or recombination of genetic material between chromosome pairs, while meiosis II does not.

Embryonic similarities persist for longer between organisms
that have a closer common ancestor.

Answers

Answer:

True

Explanation:

Species which are more closely related have fetuses that look similar.

Describe how technology causes change

Answers

Answer:

technology causes change because it will lead to new conclusions in science which will lead to changes in the environment

Explanation:

Alpha helix and pleated sheets are example of _________ Protein Folding.

Answers

Answer:

Secondary structure proteins folding

Explanation:

Alpha helix and pleated sheets are basically two types if secondary structure of Proteins.

It's the Perfect Weather for a First
Date
(Climate Diagram - Temp = Line Graph, Precip
Bar Graph)
18
36
32
16
28
24
20
14
16
12
12
10
Precipitation (cm)
Temperature (°C)
4
12
-16
-20
24
-28
-32
- 36
0
1 F M A M J J A S O N D
Month

Answers

Answer:

gay

Explanation:

oops

help please
answer these 3 questions ​

Answers

Answer:

1)D.Sucrose

2)B. Dna and Rna

3) A. Enzymes shape will be different

Explanation:

I really hope this helps

1-Is A 2-Is B and 3-is A

Identify the independent variable by highlighting it red. Identify the dependent variable by highlighting it yellow. 1. If I increase the temperature of the seeds, then germination will increase,​

Answers

Answer:

Independent variable: temperature ; Dependent variable: germination

Explanation:

The independent variable is what is being changed in an experiment. The dependent variable is what you are measuring in an experiment.

When the independent variable is changed (in this case, temperature), it effects the dependent variable (germination).

Which is the result of a seasonal change? A. A bear hibernating. B. A bat capturing mosquitoes. C. Average temperatures rising each year. D. Trees dying from air pollution.

Answers

Answer: A. a bear Hibernating

Explanation: B has nothing to do with seasons. C is talking about yearly change. D has nothing to do with what season it is. Whereas for A, bears hibernate seasonally

Answer:

A bear hibernating

Explanation:

I just took the quiz!

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(1 point) a.compound sentence b.items in a series c.appositive d.long introductory element 2.What is an appositive?(1 point) a. a word or group of words that renames a noun b.a phrase of four words or more that begins a sentence c.a series of three or more items d.a sentence of two independent clauses 3.How is ownership shown for singular nouns?(1 point) a.add -'s to the noun b.add -s to the noun c.add an apostrophe if the noun already ends in -s d.add -es to the noun 4.What is one purpose of quotation marks?(1 point) a.to indicate when someone is speaking b.to separate two independent clauses c.to show an author's narration d.to end a complete thought HELP PLEASE :) 80 POINTSIn the following equations, let x =-3 and y = 2/3. Determine whether the following equations are true or false, or neither true or false. A. xy = -2B. x + 3y = -1C. x + z = 4D. 9y = -2xE. y/x = -2 F. -2/x / y = -1 A car rental agency advertised renting a car for $26.95 per day and $0.24 per mile. If Kevin rents this car for 3 days, how many whole miles can he drive on a $250 budget?miles (Round down to the nearest whole mile.) . When a character overcomes several obstacles on the way to his or her journey's end, this is known as the (10 points) Rising Action Exposition Dnouement Falling Action Which process occurred when water droplets formed on the grass When a wave goes through a substance, _______________ has occurred.When a wave gets trapped or stuck in a substance, ______________ has occurred.When a wave bounces off of a surface, ______________ has occurred.The ____________________ states that the angle of an incoming wave is equal to the angle of the reflected wave. What happens when a Bose-Einstein condensate forms?A. A large atom is split into many smaller atoms temporarily.B. The atoms of the solid condense into one large superatom.C. It causes all matter touching it to condense into a liquid.D. 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This seems like a lot but it's not just gotta do some reading 20 POINTS HELP ASAP../ Read the excerpt from The Call of the Wild, and then follow the instructions below. .He [Buck] had killed man, the noblest game of all, and he had killed in the face of the law of club and fang. He sniffed the bodies curiously. They had died so easily. It was harder to kill a husky dog than them. They were no match at all, were it not for their arrows and spears and clubs. Thenceforward he would be unafraid of them except when they bore in their hands their arrows, spears, and clubs. .The above excerpt marks an important realization for Buck. You will be writing a short analysis paragraph about this passage; but first, you will complete a prewriting exercise to collect your ideas. Copy down the excerpt, and use a pen or highlighter to mark the words and phrases that are clues to the reader that Buck has just learned a surprising lesson. 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