A biology class wanted to study the effect of different materials on the melting rate of ice. They placed pieces of ice, each with a mass of 10g, onto trays. Group 1 was covered in plastic, group 2 was covered in paper, group 3 was covered in aluminum, and group 4 remained uncovered. Each piece of ice was allowed to melt for 15 minutes. Then final mass of the ice, minus the melted water, was recorded at the end of the experiment. Which of the following is the control group in this experiment? Choose 1 answer: Choose 1 answer: (Choice A) A Group 2 (Choice B) B Group 4 (Choice C) C Group 1 (Choice D) D Group 3

Answers

Answer 1

Answer:

CHOICE B, GROUP 4.

Explanation:

THIS IS THE CONTROL GROUP BECUASE THEIR ICE WAS UNCOVERED AND HAD NOTHING EFFECTING IT'S MELT TIME.

Answer 2

Answer:

group 4

Explanation:


Related Questions

Plants are called producers because they make their own food. Just like us, plants use their food for energy to respond, grow,
develop and reproduce. Which substance in this model is food for the plant?
-0)
A)
soil
B)
water
c
oxygen
D)
glucose

Answers

Answer:

D Glucose

Explanation:

A skydiver jumped out of a plane. she falls downward at a very fast speed. when she opens her parachute, she slows down. what force pulled the sky driver to the ground


a. friction

b. gravity

c. air resistance

d. parachute pull

Answers

Answer:  Well Gravity pulls her to the ground but it was air resistnace that slowed her down.

Answer:

gravity

Explanation:

what happen to dory when she tries to enter the anemone

Answers

Answer:

it "stung her" or shocked her. CLownfish have special thgs on their scales to let them enter.

Explanation:

Rachel wants to develop a lamp that will work using a remote control which statement best describes the process she should use

Answers

The given question is incomplete as it lacks the group of statements require to answer from, however, the correct group of statements is as follows:

A. She should use scientific investigation because she will need to analyze the results.

B. She should use technological design because she will need to design an experiment.

C. She should use scientific investigation because she will need to communicate her findings.

D. She should use technological design because she will need to build a prototype.

Answer:

The correct answer would be - option D. She should use technological design because she will need to build a prototype.

Explanation:

Rachel wants to develop a remote-operated lamp that can work by controlling by remote for that she needs to make a prototype to understand the technology and technical aspect of the product she wanted to develop.

Prototypes are technical designs or pictures that help in understanding the problems earlier about the product and can be solved by avoiding such issues in early models or protoptypes.

Answer:

Get a smart bulb from best buy

Explanation:

which isotope would tou use to date a full wooly mammoth

Answers

Answer: Carbon-14

Explanation: Scientists have determined that some of these mammoths died nearly 40,000 years ago using a technique called radiocarbon (Carbon-14) dating.

easy 1 multiple choice question in the picture. (30 points)

Answers

Answer:

If cytokinesis did not occur during mitosis the cytoplasm wouldn't be divided and there wouldn't be two identical daughter cells as a result.

17.
A main function of the digestive system is to -
O
A.
generate white blood cells to destroy any harmful bacteria in food.
B.
generate hormones that are used to stimulate the release of waste.
C.
utilize the lungs for the exchange of carbon dioxide and oxygen.
D.
utilize the small intestine to absorb nutrients from digested food.

Answers

Answer:

D

Explanation:

The main function of the digestive system is to break down and absorb foods and nutrients and digest food.

What type of isotopes are termed radioactive isotopes?

Answers

The radioactive isotopes of an element are called radioisotopes.

The number of protons in the atomic nuclei of different isotopes of the same element is the same, but the number of neutrons varies. The radioactive isotopes of an element are called radioisotopes. They can alternatively be described as atoms with surplus energy in their nucleus or unstable neutron-proton combinations.An isotope will become radioactive if the neutron to proton ratio exceeds a certain threshold or the atomic number is higher than 83.According to the idea, an isotope will become radioactive if its atomic number is higher than 83 or if the neutron-to-proton ratio rises over one or becomes excessively large.Gamma rays, beta particles, and alpha particles are the three types of radiation that are released. Typical instances of radioactive isotopes are Arsenic−74, Iodine−131 and Cobalt−60.

learn more about radioactive isotopes here: https://brainly.com/question/18640165

#SPJ2

1.If a DNA molecule has 40% Cytosine, what percent of it would be Adenine?

2.Please help describe the base-pairing rules in any DNA molecule

Answers

Answer:

The correct answer is -

1. Adenine - 10%

2. A-T and C-G always in DNA.

Explanation:

1. The total amount of all nitrogenous bases are equally 100% and which includes an equal amount of C and G and an equal amount of A and T in the DNA molecule.

So, Cytosine = 40%, Guanine= 40%

total = 80%

therefore, the A and thymine would be - 100 - 80 = 20

A+T = 20

A= 10, and, T = 10%

2. The complementary base pairing rule explains that DNA base pairs are Adenine always binds with thymine and cytosine bind with guanine only. Purine binds with pyrimidine always except - A-C or G- T.

1. __________________ are the basic building blocks of all matter, living and nonliving. They are made up of subatomic particles (__________________, __________________, __________________).

Answers

Answer: Atoms are the basic building blocks of all matter, living and nonliving. They are made up of subatomic particles (neutrons, protons, and electrons)

Explanation:

Hope thats correct and helps! :)

when deforestation occurs in an area what immediate effect does this haveon the water cycle?

Answers

Answer:

When deforestation occurs, precious rain is lost from the area

Explanation:

Trees improve water quality by slowing rain as it falls to the Earth, and helping it soak into the soil. Trees then serve as natural sponges, collecting and filtering rainfall and releasing it slowly into streams and rivers. Tress are the most effective land cover for maintenance of water quality

Name an item you might be able to reuse in a new way rather than throw it in the trash, and explain its new use.

Answers

Answer: plastic bag and use it to carry things.

Explanation:

Brainliest

Explanation:

You ca take pollution like all types of plastic ans reuse it ti make braceletes ot necklaces and lots of other things.

Can anyone answer this its urgent...
srrry if the cropping is bad

Answers

Answer:

The answer for this question is the ureotelic

Answer:

b?

Explanation:

the six kingdom system was desgined to account for great variation in the kingdom that contained the?

Answers

Answer:

A system of naming organisms using a 2 part names to label the species. The binomial name is written in Latin and is known as the scientific name

Explanation:

What is a wave?
A. a circular path for energy
B. a back and forth or up and down motion
carrying energy
C. a straight line of matter
D. a material that transfers energy

Answers

Answer:

B.

Explanation:

A biologist is finished collecting data about the feeding habits of black bears from wilderness areas and from human-populated areas.

Which parts of a scientific process should the biologist do next?


The biologist should analyze the data.

The biologist should form a hypothesis.

The biologist should make conclusions.

The biologist should communicate the results.

Answers

Answer:

they should analyze data

The biologist should analyze the data in the next part of the scientific process. Therefore, the correct option is A.

What is a scientific process?

A scientific process is a systematic approach to answering questions and solving problems through the use of scientific methods. It involves a series of steps that are designed to help scientists investigate and understand the natural world.

After finishing the data collection process, the next step in the scientific process is to analyze the data. This involves organizing and interpreting the data to identify any patterns, trends, or relationships that may exist between the variables being studied.

Hence, the biologist should analyze the data, make conclusions, and communicate the results. Therefore, the correct option is A.

Learn more about scientific process, here:

https://brainly.com/question/16846908

#SPJ2

The question is incomplete, but most probably the complete question is,

A biologist is finished collecting data about the feeding habits of black bears from wilderness areas and from human-populated areas.

Which parts of a scientific process should the biologist do next?

A. The biologist should analyze the data.

B. The biologist should form a hypothesis.

C. The biologist should make conclusions.

D. The biologist should communicate the results.

) The stem of a plant is growing upward while the roots grow downward. Which of these stimuli correctly describes the response of the plant?(1 point) touch light gravity temperature

Answers

Answer:

The correct answer is ''gravity.''

Explanation:

Tropisms are movements or changes in posture that a living being normally makes in response to a continuous environmental stimulus. Plants have hormones that respond to the gravitational impulse of our planet. Gravity deeply influences their growth and development (positive geotropism) and plants have been found to bend in response to gravity due to redistribution of the plant hormone auxin at the root tip, so that auxin is redistributed to the underside of a root that grows when it is rotated 90 degrees, the stems will still grow upward, away from the center of the Earth (negative geotropism), just as roots will always grow in the reverse direction (positive geotropism).

Answer:

The correct answer is gravity

Explanation:

I just took the quiz lol.

If you could say thanks and rate, that would be great!

A eukaryotic cell always has this unique characteristic?
cytoplasm
O membrane
nucleus
ribosomes

Answers

Answer:

A membrane-bound nucleus

Explanation:

eukaryotic cells are defined by the presence of a nucleus surrounded by a complex nuclear membrane. also, eukaryotic cells are characterized by the presence of membrane-bound organelles in the cytoplasm.

what does this quote mean?​

Answers

Answer:repeat or copy out (a group of words from a text or speech), typically with an indication that one is not the original author or speaker.

Explanation: An example of a quotation is when you take a passage from Shakespeare and repeat it as written without changing any of the words. The prices or bids cited.

Which of the following processes in the water cycle causes the formation of clouds?condensation evaporation infiltration transpiration

Answers

Answer:

hey MR.PICKLE it is bellzE

Explanation:

I miss u

Condensation

Condensation is the process by which water vapor in the air is changed into liquid water. Condensation is a apart of the water cycle because it is responsible for the formation of cloud.

What is the chemical formula of the first carbohydrate shown?

Answers

Answer:

The chemical formula for carbohydrate is carbon, oxygen and hydrogen, the number of atoms varies on what carbohydrate. Carbohydrate general formula is CnH2nOn" e.g: Glucose - C6H12O6. Carbohydrates consist of the elements carbon, hydrogen and oxygen with a ratio of hydrogen twice that of carbon and oxygen...

Explanation:

I NEED HELP FAST!!!!!!!

Weathering is a process in the rock cycle. How does weathering contribute to the formation of rocks?
Here are the answers
It increases the temperature and creates metamorphic rock.

It deposits sediment and forms sedimentary rock.

It breaks down rock into smaller pieces that can become sedimentary rock.

It causes lava to cool and harden into igneous rock.

Answers

Answer:

It breaks down rock into smaller pieces that can become sedimentary rock.

Explanation:

Weathering is the physical disintegration and chemical decomposition of rocks to form sediments and soils.

The process of weathering is very important for the formation of rocks because it breaks down rocks into smaller pieces.

By virtue of this, these tiny rock pieces called sediments are gathered and assembled together through erosion. They are then taken away and deposited in basins where they are transformed into sedimentary rocks. This is a very vital process in the rock cycle.

In which of the following categories does the pictured organism belong?

HELP ASAP MARKING BRAINLIEST HURRY HURRY

Answers

Answer:

THe answer is C

Answer:

c

Explanation:

Which is not true?
Basaltic magma has a low viscosity and retains little gas.
Andesitic magma has both an intermediate gas content and explosiveness.
An increase in temperature increases a magma's viscosity.
An increase in silica increases the viscosity of magma.

Answers

Answer: An increase in temperature increases a magma's viscosity.

Explanation: Lower temperature magmas have higher viscosity than higher temperature magmas (viscosity decreases with increasing temperature of the magma).

The molten or semi-molten matter that is found underground and forms igneous rocks is called magma. It is very hot and is found in the lithosphere of the Earth's surface.

The answer is :

Option C. An increase in temperature increases a magma's viscosity.

This can be explained as:

The Basaltic magma has low gas content and viscosity because of this non-explosive eruptions occurs.

Andesite magma has strong explosion forces and the gas content is intermediate.

The greater degree of polymerization is due to high silica content.

Therefore, an increase in the temperature does not increase the viscosity of magma.

To learn more about Basaltic magma and Andesitic magma follow the link:

https://brainly.com/question/1069670

Why is mosa called to mrs.newtons supermarket?

Answers

Answer:

I dont know why

what's the answer

I’m not sure , what’s the answer?

Which of these landforms is created due to deposition?


A Cirque

B Fjord

C Horn

D Sandbars
helpppp

Answers

Answer: Sandbars

Explanation: Sandbar, also called Offshore Bar, submerged or partly exposed ridge of sand or coarse sediment that is built by waves offshore from a beach. The swirling turbulence of waves breaking off a beach excavates a trough in the sandy bottom.

Answer:

it is sandbars

Explanation:

Wave erosion also deposits sand, which can make spits (beach(es) that projects out into the water as a result of deposition) and build up sandbars (long ridges of sand that build up off the coastline as a result of deposition).

pls mark me brainliest

what are your thoughts about human population?

Answers

Answer:

As the human population continues to grow, the more resources we consume and use on earth. We need to slow it down, we highkey breeding like rabbits and in many places overpopulation is already a problem. As the population rises, all our problems we have grow as well. World hunger grows as there are more people on earth and we can't feed all of them. more people = more pollution.

Explanation:

Overpopulation is an undesirable condition where the number of the existing human population exceeds the actual carrying capacity of Earth. Overpopulation is caused by a number of factors. Reduced mortality rate, better medical facilities, depletion of precious resources are few of the causes which result in overpopulation. It is possible for a sparsely populated area to become densely populated if it is not able to sustain life.

Growing advances in technology with each coming year has affected humanity in many ways. One of these has been the ability to save lives and create a better medical treatment for all. A direct result of this has been the increased lifespan and the growth of the population.

In the past fifty years or so, the growth of the population has boomed and has turned into overpopulation. In the history of our species, the birth and death rates have always been able to balance each other and maintain a population growth rate that is sustainable.

At the root of overpopulation is the difference between the overall birth rate and death rate in populations. If the number of children born each year equals the number of adults that die, then the population will stabilize.

Talking about overpopulation shows that while there are many factors that can increase the death rate for short periods of time, the ones that increase the birth rate do so over a long period of time.

The discovery of agriculture by our ancestors was one factor that provided them with the ability to sustain their nutrition without hunting. This created the first imbalance between the two rates.

Fatal Effects of Overpopulation

1. Depletion of Natural Resources

2. Degradation of Environment

3. Conflicts and Wars

4. Rise in Unemployment

5. High Cost of Living

. Extinction

Can somebody answer this please it’s 1 question.

Answers

Answer:

The temperature has increased

Explanation:

Should water (H20) be included in the model as a reactant or product? If so, how should it be included?
A. Yes, as reactant A.
B. Yes, as product B.
C Yes, as reactant C
D No, it should not be included.​

Answers

Explanation: a is right

dfwdwggewgrgwrhrgwrhrw

This passage best supports which conclusion about dark matter?​

Answers

Answer:D

Explanation:

The passage talks about how it's gravity disrupts the path of light

Other Questions
What is an accurate definition of a goal?a way of living that shows the beliefs and opinions of a person or group of peoplea priority, principle, or belief that guides a persons lifean ability created through learning and experiencesomething specific a person wants to achieve NEED Help ASAP When I divide both sides of an inequality by a negative number, I notice... ( PLEASE HELPPPP) I GIVE BRAINLIESTWhen an electric light is turned on, the amount of light energy released by the lightbulb is less than the amount of electrical energy going into the lightbulb. Which statement best explains this?Question 4 options:Some of the electrical energy is destroyed.Some of the electrical energy is changed into heat energy.Some of the electrical energy stays in the wire.All of the electrical energy is destroyed. Find a number that makes the number sentence true . 1 1/2 ____ (fill the blank in ) Gametes, which are sex cells, carry the alleles. Why must a gamete carry one allele (represented by a letter) from each gene? Meaning, why cant a gamete carry an hh instead of an hs or an Hh instead of a HS? which of the following types of businesses are likely to use units of time as their units of sale (select four answers) 1.yard care2.shoe store3.house 4.baking/painting5.art gallery6.massage7.florist 8.dog walking In the American health care system, patient care generally begins:in a hospital.with a specialist.with a family doctor.with emergency services. :D can u guys help me on this one im kind of lost Which of the following is the feeling most often expressed by the poetsquoted in "The Writing on the Wall"? A. angerB.regretC.dismayD.loneliness The scatterplot shows the amount of sleep that Aria got the night before a test and her test scores. What type of relationship do you see between amount of sleep and test scores?A. In general, Aria scores lower on a test when she sleeps more and scores higher on a test when she sleeps less.B. In general, Aria scores higher on a test no matter how much she sleeps.C. In general, Aria scores lower on a test no matter how much she sleeps.D. In general, Aria scores higher on a test when she sleeps more and scores lower on a test when she sleeps less. SOMEONEEEEEEEEEEEEEE PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSlook at the photo and help me What is the simplified value of the expression below what is 10000000=...................$ Choose the correct symbol from the drop-down list to compare the rational number-1.5 -1.76 = Need Help ASAP Ill give brainliest Plz HELP! an object is dropped from the top of a building which is 75 meters high. what's it's velocity before it reaches ground Unexpected expenses... A. can make it hard to stick to your budget. B. may cause you to be unable to pay necessary bills. C. should be planned for. D. all of the above At the gym, Tika spends twice as much time doing aerobics than weight training. She stretches for one fifth of the time she spends on weight training. Let w be the amount of time Tika spends on weight training. Which expression represents her total workout? How many moles of sucroseare in 5.25x1029 sucrosemolecules? what is the period of the sinusoidal function