:)))))))))help me plsss

Answers

Answer 1

Explanation:

1. The materials are physically combined because all of the materials including the sand, salt, and iron fillings are their own substances and they maintain their original form. This is a mixture and they aren't chemically combined.

2. To separate each of the materials physical means would be used because since they're their own individual substances and have kept their original form they're mixed and not chemically combined.

3. The iron and oxygen atoms in rust are chemically combined because they are no longer individual substances and haven't kept their original form, so therefore they're a chemical combination.

Related Questions

The students decide to model how the motion of two plates occurs. Which statement best describes the ability of the model to predictyplate movement? A The motion of the plates cannot be modeled on a scale that is much smaller than the plates themselves. B The motion of the plates cannot be modeled by simplifying the factors that contribute to plate movement. C The motion of the plates can be modeled by including only the main factors that contribute to plate movement. D The motion of the plates can be modeled only by including every factor that contributes to plate movement.

Answers

Explanation:

In my view, all factors are equally responsible for this.

Which of the following best explains how the prokaryotic expression of a metabolic protein can be regulated when the protein is already
present at a high concentration?

Answers

Answer:

A. Repressor proteins can be activated and bind to regulatory sequences to block transcription.

Explanation:

its A

The best explanation for the prokaryotic expression of a metabolic protein is repressor proteins can be activated and bind to regulatory sequences to block transcription.

What are metabolic proteins?

Protein helps with growth and repair. Proteins have the potential to serve as a metabolic fuel source in addition to all of these important functions.

Excess proteins must be converted into glucose or triglycerides and used to provide energy or build energy reserves because proteins cannot be stored.

Thus, the correct option is A.

Learn more about metabolic proteins

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A lever used to lift a heavy box has an input arm of 4 meters and an output arm of 0.8 meters. What is the MA of the lever?

Answers

Answer:

Mechanical advantage = 5

Explanation:

Given the following data;

Length of input arm = 4 meters.

Length of output arm = 0.8 meters.

To find the mechanical advantage;

[tex] Mechanical \; advantage = \frac {Length \; of \; 1nput \; arm}{Length \; of \; 0utput \; arm} [/tex]

Substituting into the formula, we have;

[tex] Mechanical \; advantage = \frac {4}{0.8} [/tex]

Mechanical advantage = 5

PLEASE HELP ME ASAP :(

Answers

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Answer: C that protists are single-celled organisms

Explanation:

I hope this helped!

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Can someone help me with this bio question plss!!!!!!!!

Answers

Answer:

it says that plants are the main source of nutrients and energetic materials and when the cow feed on them, it consumes some of the benefits that we miss when we eat beef

Answer:

Question 6: The answer is the energy, because it collects more energy than the cow. When the cow eats plants, the energy from the plant decreases leaving the cow with only little amount.

Question 7: I agree, Because plants holds way more nutrients and energy than meat. I could support that by saying when a herbivore eats from a plant, It only recieves 10%.

Which was not developed in the 1800s?

natural selection

germ theory

scientific method

cell theory

Answers

Answer:

germ theory

Explanation:

it was founded in the 19th century and founded by a man named Louis pasteur and robert koch who provided the final clue

Cell Theory is your answer

an organisms habitat must provide all of the following except

Answers

Answer: Predators (trust me)

Answer:

except what? there are no possible answer

Explanation: Please give possible answers

ANSWER ALL QUESTIONS
Name four activities carried out in agriculture as an art

Answers

Answer:

planting

measuring

weeding

harvesting

Explanation:

hope this helps

don't forget to follow me

n mark my answer

What is a pill bugs habitat

Answers

Answer:

The pillbug's main habitat is under mulch, fallen leaves, and rocks. Pillbugs are nocturnal and require humid conditions during the day. Pillbugs are generally found in soil with sowbugs, millipedes, and earthworms. Their preferred soil habitat is composed of organic matter and has a neutral to alkaline pH.

Why is family history thought to be important and a good predictor of an individual’s disease risk factor?

Because family members most closely represent the unique genomic (DNA) and environmental interactions that individuals experience

Because doctors can determine your family’s risk from your ailments

It is important to know family history so that a doctor can issue the right antibiotic to prevent cancer

So that doctors can know how your 1 st line of defense reacts to antibiotics mi

Answers

Answer:

The first answer, Because family members most closely represent the unique genomic (DNA) and environmental interactions that individuals experience. Is right

Explanation:

Which agency is directly related to supervising and managing campgrounds

Us Forest Service

Bureau of land management

Us fish and wildlife service

National park service

Answers

National park service

Answer:

National Park Service

Explanation:

HELP ME PLEASE PLEASE PLEASE 20 POINTS AND BRAINLIEST

Answers

Answer:

ITS A(the endiplasmin reticulum)

Explanation:

Which of the following is NOT an example of homeostasis?

red blood cells transferring carbon dioxide to the lungs to be exhaled

the digestive system breaking food into smaller pieces that can enter the cells of the body

a virus entering a cell and damaging the organelles

mitosis

Answers

Answer:

mitosis

Explanation:

Morphine is created from what type of plant

Answers

Answer:

Per my research, Morphine is one of the many, and pharmacologically most important, opium poppy alkaloid (Papaver somniferum). A poppy plant consists of a lot of alkaloids.

Explanation:

Correct me if I am incorrect but this is what I got during my research. Have a good one and I hope this somewhat helped.

✍(◔◡◔)

Please help!!!! 20 points

Answers

Answer:

Producers: Leaves and the other plant thing (i don't know the name of it)

First-level consumers: Squirrel, grasshopper, rabbit, rat

Second-level consumers: Frog, rat

Third-level consumers: Fox, owl, snake

Herbivores: Grasshopper, rabbit, squirrel

Carnivores: Frog, fox, snake, owl

Omnivores: Rat

PLZ HELP THIS IS TIMED!!!!!\

ATP is made during the Krebs cycle between two molecules

A.Succinyl COA
B.Fumarate
C.Malate
D.Alpha Ketoglutarate
E.Succinate

Answers

Answer:

The answer should be A,if not than sorry!

From DNA to protein involves which series of events?Which of the following correctly describes the locations of transcription and translation within a eukaryotic cell?

Answers

Answer:

DNA istranscribed in the nucleus, then the mRNAtranscript is transported to the cytoplasm to be translated into protein.

Explanation:

I hope that this is what you were looking for

10. What is an entomologist?

Answers

Answer:

An entomologist is a person who studies, or is an expert in the branch of zoology. (A branch in zoology concerned with insects.)

Explanation:

What are the "energy factories" within a plant cell?

Answers

mitochondria is the energy factors in a plant cell! hope this helps

Someone help me out please

Answers

The answer is carbohydrate

In addition to observable traits, scientists use to classify living things

Answers

Answer: 1 Phylum.

2 Order.

3 Class.

4 Family.

5 Genus.

6 Species.

Hope this helps. Can u give me brainliest

Explanation:

Justin wants to know how much gas his mother will save if he rides his bike to school rather than being driven in the car. For one month, Justin rides his bike to school. Every week, he asked his mother how much gas she put in the car. The next month, Justin had his mother drive him to school. Again, every week he asked her how much gas she put in the car. What could Justin do to improve this experiment?

Answers

Answer:

ask his mother?

Explanation:

Answer:

To improve the experiment, Justin should have created a hypothesis and could have repeated the experiment to see if the results were at least similar.

Explanation:

Hope this helps!

Elliptical galaxies form a perfect sphere or an ellipse.

True
False

Answers

Answer:

True

Explanation:

A group of billions of stars in space is known as a galaxy. ... Irregular ones do not have specific shape and elliptical galaxies are three dimensional. It has ellipsoidal shape which formed of deformation of sphere and looks like ellipse. Hence, the given statement is true.

The air in the thermosphere becomes thinner and thinner until it fades into space. True or false

Answers

Answer:

Well to be honest there are no unmistakable separating lines. Each layer mixes into the layer above it and the layer underneath it. Researchers are certain that the air becomes thinnerand more slender farther from the Earth's surface, until it at long last blurs off into space.

Explanation:

Answer:true

i cant explain they wont let me put in l-i-n-k-s

Describe the 6 phases of developing a vaccine

Answers

Answer:

Exploratory stage

Pre-clinical stage

Clinical development

Regulatory review and approval

Manufacturing

Quality control

Explanation:

Internet

Explanation:

there are many stages to a vaccine

many come from ... developing symptoms

in which some case can come from

some quality control, pre-clinical control or even exploratory stage

How can someone see in a dim room

Answers

Wait like see in a dark room

Which wavelength is reflected off plants stems and leaves

Answers

well if i were to say it simply, a RED LIGHT is an easier wavelength though plants look green to us. if you would want to be more specific, it mainly consists of details in the electromagnetic spectrum or photosynthesis, energy, and the special pairs of the chlorophyll molecules!!!

brown rabbits have the genotype BB or Bb. White rabbits have the genotype bb. If two brown rabbits, with the genotypes seen in the Punnett square above, have baby rabbits, what is the probability that the baby rabbits will also be brown?

a) 25%
b)50%
c)75%
d)100%

Answers

i believe its 75% or 50% definetly use a punnet square to check tho!

Explanation:

BB: brown

Bb: brown

bb: white

Since you didn't give the variables, here is how you make a punnet square:

Make a box with four boxes inside.

_______________

| | |

_______________

| | |

_______________

Put the variables on each side:

Example:

____B_____b____

B| | |

| | |

_______________

b| | |

| | |

_______________

then fill in :

____B_____b____

B| BB | Bb |

| | |

_______________

b| | |

| Bb | bb |

_______________

Which of the following is true of the composition of all materials?
A.
All materials are made up of large parts that can only be seen by the human eye.
B.
All materials are made up of smaller parts that cannot be seen without magnification.
C.
All materials are made up of living cells.
D.
All materials are made up of only one part.

Answers

Answer:

Option B.

Explanation:

All materials are made up of smaller parts that cannot be seen without magnification.

Pls help me!!! I need help

Answers

Explanation:

option a

option b

option c

Comet and astroids I think

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