Which two substances are among the four major types of organic compounds made by living things?
A. Phosphates
B. Nitrates
C. Proteins
D. Lipids

Answers

Answer 1

Answer:

D:)

Explanation:

Lipids


Related Questions

can someone help me w this? A pneumonic device is a memorization tool that helps you remember things. For example, if you can read music you probably have heard, “Every Good Boy Does Fine” to learn the names of the lines on the treble clef EGBDF. Or maybe your math teacher taught you, “Please Excuse My Dear Aunt Sally,” to help you remember the order of operations. It is now your turn to think of a pneumonic device to remember the water cycle in order. Write your pneumonic device below.

Answers

Charlie took Edward's pencil
Carson tames emperor penguins

Is the Artic considered a desert? why or why not?

Answers

Answer:

Both, much of the artic is a desert including the artic basin, Canadian Artic Archipelgo, and the north pole because the average precipitation is between 150-250mm. This is below 250mm which is the agreed level to be considered a desert.

No because it isn’t dry and hot.

Why will a sound wave travel through a solid more quickly than through a gas?
Group of answer choices

The particles in a gas are close together, which means the vibrations of the sound wave transmit more slowly.

The particles in a gas are spaced farther apart, which means the vibrations of the sound wave transmit more quickly.

The particles in a solid are spaced farther apart, which means the vibrations of the sound wave transmit more quickly.

The particles in a solid are closer together, which means the vibrations of the sound wave transmit more quickly.

Answers

Answer:

the particles in a solid are closer together, which means the vibration of the sound wave transmit more quickly.

Because it’s all tight together?

Below are atomic-scale models of two different substances. Use the terms in the word bank to label these models. Use each of the terms only once.

Answers

Top box :-

Denoted to one Cl

Hence it should be atom

#Top right box

Denoted to KCl and CH_4 molecules

Hence answer should be molecules

#Bottom left:-

Denoted to Whole branching of KCl h.ce it's repeating atom group

#Last

CH_4 's extended structure is shown hence it's extended structure

What happens to an object if the total of the forces acting on it are greater than zero?
Select one:

Nothing will happen to the object.

The object’s motion will change.

The object will move forward.

The object’s motion will remain the same.

Answers

The objects motion will change
B is the correct answer

What is a sedimentary rock?

A. a type of rock that is formed over long periods of time by layers of silt building up on the floor of a body of water

B. a type of rock formed over long periods of time by the cooling and solidification of molten Earth material

C. a type of rock that is formed in a very short period of time by sudden violent volcanic eruptions into the ocean

D. a type of rock that is formed over long periods of time by the transformation of existing rock types

Answers

Answer:

answer is D

Explanation:

sedimentation is the process to make the sedimentary rock. they are formed by using minerals or fossils or other rock types

It would be A, sediment builds up over time and is compressed into rock over millions of years. That is why when you look at sedimentary rock is has clear layers of sediment. Hope this helps you out!

How can speed be described?
Select one:

The mass multiplied by the acceleration of an object.

The force on an object divided by the mass of an object.

The distance an object travels at a certain velocity.

The distance travelled by an object in a certain time.

Answers

The correct answer is:  [D]:

___________
→  " The distance traveled by an object in a certain time."

___________

Explanation:

Choice:  [A]:  "the mass multiplied by the acceleration of an object."
 refers to:  "force".    " F = m*a " .   → Rule out:  Choice: [A].
___________

Choice:  [B]: "the force on an object divided by the mass of an object."
 refers to:  "acceleration".  " F /m = a ". → Rule out:  Choice: [B].
___________
Choice:  [C]:  "the distance an object travels at a certain velocity."
 refers to: " the time period traveled at a specific speed AND direction."
___________

Choice:  [D]: " the distance traveled by an object in a certain time"."

refers to:  "speed".  which is our answer!

___________

Note:  " speed = distance / time ";  That is:  " s = d/t " ;

Note that for "speed" ; the "direction of travel is irrelevant."

 → So; we can rule out: "Choice:  [C]."

___________

The correct answer is:  Answer choice:  [D]:

  →  " the distance traveled by an object in a certain time."
___________

Hope this is helpful to you in some way!  Best wishes!
___________

How is a mixture such as a plate of pasta different from a mixture such as air

Answers

Answer:

Well there is a lot of differences between the two. Its called homogeneous and Heterogeneous mixtures. Homogeneous mixtures are all the substances are evenly distributed throughout the mixture (salt water, air, blood).  Heterogeneous mixtures are the substances that are not evenly distributed (chocolate chip cookies, pizza, rocks). So Pasta with sauce and meatballs is heterogeneous and air is homogeneous




HOPE THIS HELPS HAVE A GREAT DAY!!~

Explanation:

When excess _____ flow into an aquatic ecosystem, a chain of events may take place which leads to a low dissolved-oxygen level in the water. This is called eutrophication.
Group of answer choices

nutrients

gas particles

water and sand

solid substances

Answers

Answer:

solid substances

Explanation:

In an ionic bond, electrons are ___________________. Choose all the apply.

(12pts + Brainlest)

1. gained


2. lost


3. shared


4. neutral

Answers

Answer:

Electrons are shared.

Explanation:

In an ionic bond, electrons are gained and lost. So, the correct options are A and B.

What is an ionic bond?

An atom can establish bonds with other atoms in two main ways: covalent and ionic. The sharing of electrons between two or more atoms forms a covalent connection. When two or more ions join contact, they can create ionic bonds that are held together by charge differences.

A chemical link in which one atom transfers one or more electrons to another atom is known as an ionic bond. A negatively charged ion, or anion, is created when an atom receives electrons, while a positively charged ion, or cation, is created when an atom loses electrons. The ions' opposing charges draw to one another and create a solid link between them. Usually, a metal and a non-metal atom form ionic connections. Ionic bonds contain electrons.

So, the correct options are A and B.

Learn more about Ionic bonds, here:

https://brainly.com/question/11527546

#SPJ2

What is displacement?
Select one:

The direction an object moved.

The time it takes for an object to move a certain distance.

The distance an object moved.

An object’s change in overall position.

Answers

Answer:

The change in overall position

Explanation:

Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.

THIS IS SCIENCE If you answer this please make two sides or list which go on each one whether it is Terrestrial or Jovian. I will give brainliest!

Compare terrestrial and Jovian planets below by writing each characteristic in the correct

category.

• less massive

• more massive

• many moons

• smaller volume

• zero to two moons

• farther from the Sun

• some contain ring systems

• larger volume

• closer to the Sun

• composed mostly of gases

• longer revolutionary period

• shorter revolutionary period

• composed of silicate rocks and metals

• geologic features like craters and mountains

Answers

Answer:

geologic features like craters and mountains

Explanation:

when i did this my teacher said it was ok

Which vein carries oxygenated blood back into the heart?

Answers

Answer:

The veins that carry oxygenated bloof back into the heart are the pulmonary arteries.

Explanation:

Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins. Oxygen-rich blood then flows through the mitral valve (MV) into the left ventricle (LV), or the left lower chamber.

Answer:

The veins that carry oxygenated bloof back into the heart are the pulmonary arteries.

Explanation:

DO mutations only form from natural factors?

Answers

Answer:

Mutations occur throughout the natural world.

Explanation:

-A-Astro

In the Tough Man Competition, very strong men are challenged to push or pull extremely large and heavy objects to test their strength. In one such challenge, they were asked to push one of two rail cars, an engine car and a box car. The data tables show one man’s results. Look over the data table and answer the questions below.

A. Why couldn't the strong man move the box car with a force of 3000 Newtons? Make sure to include Newton's 2nd Law in your explanation.

B. What could be done to move the boxcar?

C. Another student claims that during the competition, the sum of the forces on the boxcar was 0 N. What evidence is the student using to make this claim? Be sure to explain your thinking.

Answers

B. What could be done to move the boxcar is the answer

How does this support the theory that whales evolved from walking mammals? in embryo evidence

Answers

Answer:

A embryo's, Whales have small back limbs which disappear before birth.

Explanation:

There are lots of evidence in a whale's body and biology suggesting its ancestors lived on land. They have paddle-shaped flippers that encase hand bones with five 'fingers,' and they breathe air and feed their young with their own milk.

Which of these shows the common stages of growth for a flowering plant?
leaves, seed, shoot, root system, stem or trunk, flowers
stem or trunk, root system, seed, shoot, leaves, flowers
seed, shoot, root system, stem or trunk, leaves, flowers
flower, seed, shoot, stem or trunk, root system, leaves

Answers

Answer:

everything because every part are equally responsible for the growth of plant

I think leaves is the correct answer

A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.

Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?


A person riding a bicycle wants to move the bicycle forward. She moves her legs up and down on the bicycle's pedals. Then the rider wants to stop the bicycle. She stops pedaling and the bicycle slows. She takes one of her feet off a pedal and puts her foot on the ground to stop the bicycle and stay upright.

Which of these best identifies a pathway of systems in the rider's body, as described in this scenario?


nervous system > musculoskeletal system > circulatory system > nervous system


musculoskeletal system > nervous system > circulatory system > musculoskeletal system


musculoskeletal system > circulatory system > musculoskeletal system > nervous system


nervous system > musculoskeletal system > nervous system > musculoskeletal system

Answers

Answer:

nervous system>musculoskletal system>circulatory system>nervous system

Explanation:

To calculate acceleration you must
Select one:

multiply the force and mass

add the force and mass

divide the mass by the force

divide the force by the mass

Answers

Divide the force by the mass

F=ma; when you rearrange, divide m to the other side. you end up with a=F/m
The answer is Divide the force by Mass

HELP NEED THIS DONE BEFORE 9:45!!!!!!!!!!!!!!!! WILL GIVE 100 POINTS AND BRAILIEST IF DONE BEFORE 9:45!!!!!!!!!!!!!

Answers

Answer:

1.) 742.57 m/s

2.) 132

3.) 4.375 hours

4.) 1080

5.) 81.6 km per hour

6.) 20 min = 1,200 secs1000 / 1200

Explanation:

Your Welcome!

Answer:

1.) 742.57 m/s

2.) 132 m

3.) 4.375 hours

4.) 1080 m

5.) 81.6 km per hour

6.) 20 min = 1,200 secs1000 / 1200

Explanation:

**Brainliest would be appreciated**

what are some consequences of water pollution?

Answers

Answer:

At the bottom

Explanation:

-Destruction of aquatic flora and fauna
-Economic downturns
-serious health problems


And more!! We need to beware of our actions

What do you think happens to the oxygenated blood after it enters the left ventricle?

Answers

Explanation:

The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle.

here you goooo
the best and correct ans

Why does the Earth experience two high and two low tides each day?

The moon orbits the Earth twice as fast as the sun.

The moon orbits the Earth completely once per day.

The moon and the sun create their own high and low tides.

The moon passes over the same location above the Earth's surface twice per day.

Answers

B cuz I said so also cuz I’m smart
B the moon orbits the earth completely once per day

What is the working resistance of a bulb that takes a current of 0.25 A when it is connected to 220V mains supply?

Answers

Answer:

880 Ω (Ohms)

Explanation:

To calculate Resistance from Potential Difference (Volts) and Current (Amps), you use the equation R = V/I

So,

R = 220/0.25

R= 880

Part H In parts E, F, and G, which data sets (corrective lenses, glasses, or contacts) show the most similar variation between Doctors?

Answers

Answer: Doctor A Corrective Lenses: 745, 726, 769, 765, 756, 742, 757, 748, 770,

Explanation: I took the test! i have a great day :)

can someone help me w this? A pneumonic device is a memorization tool that helps you remember things. For example, if you can read music you probably have heard, “Every Good Boy Does Fine” to learn the names of the lines on the treble clef EGBDF. Or maybe your math teacher taught you, “Please Excuse My Dear Aunt Sally,” to help you remember the order of operations. It is now your turn to think of a pneumonic device to remember the water cycle in order. Write your pneumonic device below.

Answers

Water cycle stages: Evaporation, Transpiration, Condensation, Precipitation

Edward took Charlie's pencil

a major use of magnesium oxide is as a refractory material.
explain in terms of structure and bonding, why magnesium oxide has a very high melting point.
[ this is 4 marks, please provide a good answer ]
[ giving brainliest + thanks on profile ]

Answers

Why does magnesium oxide have a high melting point?

Sodium oxide has a high melting point because of the strength ofits bonds. Due to having strong bonds, they cannot be broken veryeasily. Magnesium chloride is ionic compound. There is a strong electrostatic force of attraction between 2 chloride atoms and 1 magnesium atom.

Because it retains its strength at very high temperatures. It is considered a refractory material with a melting point of 6500 degrees F. It is also very non-reactive with other materials that might be put into the furnace and is even used to make crucibles - containers used to melt other substances.

Magnesium oxide has very strong ionic bonds, as compared to other salts like potassium oxide or sodoum chloride.

The strength of ionic bonds usually depends on two factors - ionic radius and charge. Mg+2
and O−2 have charges of +2 and -2 respectively. This is larger than the charges of other ions like Na+ or NO-3. Magnesium ions and oxygen ions also have small ionic radius. Magnesium is in period 3 so its ion is smaller than that of calcium or barium. Oxygen ion is smaller than sulfide and fluoride. The smaller the ionic radii, the smaller the bond length and the stronger the bond. Therefore the ionic bond between magnesium and oxygen is very strong.

Match the term with its description.

Acid:
Base:
Ions:
pH:

Definition:
A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water


Used to measure the pH of substances by determining their hydrogen ion concentration


A compound that increases hydroxide ions (OH−) when it is dissolved in a solution


A compound that increases hydrogen ions (H+) when it is dissolved in a solution

Answers

A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water= pH

A compound that increases hydroxide ions (OH−) when it is dissolved in a solution= Acid

A compound that increases hydrogen ions (H+) when it is dissolved in a solution= ions

Used to measure the pH of substances by determining their hydrogen ion concentration= base

Answer:  pH goes with A value from 0 to 14 is used to specify how acidic or basic a compound is when it is dissolved in water

base goes with A compound that increases hydroxide ions (OH−) when it is dissolved in a solution

ions goes with Used to measure the pH of substances by determining their hydrogen ion concentration

acid goes with A compound that increases hydrogen ions (H+) when it is dissolved in a solution

Explanation: i took the test and got it right

How can speed be described?
Select one:

The mass multiplied by the acceleration of an object.

The force on an object divided by the mass of an object.

The distance an object travels at a certain velocity.

The distance travelled by an object in a certain time.

Answers

Answer:

The mass multiplied by the acceleration of an object.

Explanation:

Please give brainliest, It's not much, but it's honest work.

The distance an object travels at a certain velocity

Part A Cut off the top and one side of the milk carton as shown. Use the hole punch (or scissors) to make two holes on opposite sides of the carton. Make sure the holes are low enough for the rubber band to launch the car. Thread the rubber band through the holes, and secure it using paper clips. Stretch the rubber band to launch the toy car away from the box. Pull back the rubber band to different distances, and explain what happens.​

Answers

Answer:

the harder you pull on the rubber band the further the toy launches.

Explanation:

because i got it right and its common sense

Other Questions
[30 PTS!!] Using mathematically precise language, explain in detail how you would multiply the complex number [tex]z_1=r_1(cos[/tex][tex]_1+i sin[/tex][tex]_1)[/tex] with the complex number [tex]z_2=r_2(cos[/tex][tex]_2+isin[/tex][tex]_2)[/tex]. A sample of an ideal gas at 1.00 atm and a volume of 1.96 L was placed in a weighted balloon and dropped into the ocean. As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 15.0 atm, what was the volume of the sample Which climate factor is the best option for city planners to consider when trying tomitigate the urban heat island effect?A) LatitudeB) VegetationC) ElevationD) Proximity to Ocean $9,000 is invested in a stock that loses 3%/yr on average. What is its worth after 6 years? Value: Express the following ratio: 20 inches to 2 feet in its simplest form. Hint: 1 feet = 12 inches WILL CHOOSE BRAINLIEST! Select two words that define conjured in paragraph 12. In quadrilateral two angles are equal. The third angle is equal to the sum of the two equal angles. The fourth angle is 60degrees less than twice the sum of the other three angles. Find the measures of the angles in the quadrilateral. A description of a recent (2019-2021)example of how this gbv problem has displayed in your community A toy car pushed across the floor is observed to slow down and stop based on Newtons first law of motion what is the best conclusionA : an object in motion eventually stopsB. The car must have been going slightly uphillC. The car did not have enough mass to keep goingD. There must have been an unbalanced force acting on the toy car Solve the equation for x. Assume a0. 4=ax14 WILL GIVE BRAINLIST TO BEST ANSWERWhat is the most commonly accepted theory of solar system formation?A.the Nemesis theoryB.the theory of planetary motionC.the dust cloud theoryD.the black hole theory Gabby has a goal to finish covering the field before 12 hours haveelapsed. She will use any remaining time to water the field. After 1 hourhas elapsed, she has covered 4,000 square yards of the field.Explain why Gabby will be able to meet her goal by working at this rate. Aspart of the explanation, determine the amount of time, in hours, Gabbywill have to water the field. Which decimal is greater: 7.09 or 7.1? Upon issuance of the Emancipation Proclamation, public opinion inWhich country coalesced behind the Union? What is the length of a rectangle formed from the lateral surface of a cylinder? NEED HELP!!julia and kelsey are both babysitters. julia charges a flat fee of $30 plus $5 per hour. and kelsey charges a flat fee of $10 plus $15 per hour. which system of equations represents the information given? let z represent the number of hours spent babysitting. let y represent the money earned. (answer choices are in the picture) Bijou says the following steps can be used to find 0.62 of 7:Step 1Step 2Step 3Step 4Change "of to the multiplication symbol.62 7 = 434There are 0 decimal places in 7 and 2 decimal places in 0.62 for a total of 2 decimal places in the factors.Move the decimal place in the product 2 places to the right to find the solution: 0.62 of 7 is 43,400.In which step did she make her first error?Step 1Step 2Step 3Step 4 mtDNA is individual evidence.TrueFalse Find the center and radius of the circle represented by the equation below.(x + 5) + (y 5) = 2251Center:Radius: I need help with this