While eating a piece of fruit, a group of scientists noticed that some had fruit that was spoiled while others didn't. One scientist said they left their fruit on the counter, another left theirs in the fridge, and one left theirs in the freezer. They decided to conduct an experiment to determine where fruit should be stored so it stays fresh longer. The fruit of choice was granny smith apples that were bought at the same time and were the same size. One apple was left on the counter, another in the fridge, one in the freezer, one was left outside on a porch, and a final apple was left in the microwave. All remained in their locations for one week and they tested which apple was freshest. In this experiment, what is the independent variable? A. Type of apple B. Where the apples were left C. Amount of time apples were left out D. Freshness of apple

Answers

Answer 1

Answer:

"where the apples were left"

Explanation:

In the scenario being described the independent variable would be "where the apples were left". This is because where the apple was left does not depend on any other factor for the results to be affected. The freshness of the apple would be the dependent variable because it depends on where the apple was left and for how long, while the amount of time is the controlled variable in this scenario because it remains constant for all groups and was chosen by the scientists.


Related Questions

Select all that apply
Which of the following countries exclusively use the metrie system?
France
Canada
England
United States

Answers

Answer:

france uses the metrie system

A process which is essential to the whole species but not to an individual
member of that species is:
1. Digestion
2. Growth
3. Reproduction
4. Development

Answers

Reproduction. Not everyone is capable of reproduction therefore, it becomes something that the rest of society “has to do”. I really hope I make sense and answered this right.

Helppppppppp!!!!!!! I don’t know any of this!

Answers

The answer is Polysaccharide, hope this helped :)

How do the Earth, the Sun, and the moon interact to influence the time patters of tides?

Answers

Answer:

Explanation:

When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides, both commonly called spring tides. A similar situation occurs between the Earth and the sun.

What is the result when a single cell reproduces by mitosis?
two cells with genetic material identical to the parent cell
two cells with half the genetic material of the parent cell
four cells with half the genetic material of the parent cell
four cells with genetic material identical to the parent cell

Answers

Answer: The answer is two cells with genetic material identical to the parent cell.

Explanation: I am also studying this in class and we went over many instances where this question was brought up and the correct answer is four cells with genetic material identical to the parent cell because besides the fact that when you reproduce one cell you get two cells, (which makes logical sense from both a science and a math standpoint) you always have identical DNA to the parent cell and you never get half of it or else it would mess up the whole reproductive process.

The result when a single cell reproduces by mitosis is TWO cells with genetic material IDENTICAL to the parent cell.

Mitosis is a type of cell division by which a parent cell divides to produce two genetically identical daughter cells.

Conversely, meiosis is a type of reductional cell division that produces four daughter cells (gametes) from one parent cell. These cells have half of the genetic material as the original parent cell.

Mitosis divides into four stages: prophase, metaphase, anaphase and telophase.

In conclusion, the result when a single cell reproduces by mitosis is TWO cells with genetic material IDENTICAL to the parent cell.

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depending on their ______, stars can be one of four categories: white dwarf, main sequence, giants, or super giant

Answers

Answer:

pretty sure the answer is surface temp or mass

Explanation:

pls heart and mark brainliest much appreciated

Which organelle is used as temporary storage for water, waste products, food, and other cellular material?
mitochondrion
lysosome
centriole
vacuole

Answers

Answer:

d. vacuole

Explanation:

the vacuole stores water, waste, food, etc. and then releases it from the cell.

Organelles are present inside the cells of eukaryotic organisms. The vacuoles of the cells temporarily store water, wastes, food, and other material. Thus, option D is correct.

What is a vacuole?

A vacuole is an organelle present in an animal and plant eukaryotic cell. Though they differ in size and number in both cells but have various functions important for the survival of the cell.  

The vacuole of plant cells is large than the animal cell and stores the cellular substances, cell waste, and synthesized food particles. In plants, they maintain the water and osmotic balance.

They regulate the storage and transport of cellular materials, maintain turgor pressure, and control the localization of the proteins synthesized by translation.

Therefore, option D. vacuoles stores waste and food.

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Choose the best example of an observation we might make of an occurrence where change is gradual and not perceptible in minutes or even hours.

A)Trees losing their leaves in the fall.
B) Fall leaves drifting on a pond.
C) Fall leaves burning in an incinerator.
D) Leaves changing color in fall.

Answers

D makes the most sense since the others all occur within hours or can be easily watched and followed

Answer:

D

Explanation:

got it right on the quiz

What is the best way to sample sessile organism with quadrats?
a) Cover the entire area with quadrats
b) Place one quadrat in the center of the area
c) Place quadrats in locations with the most interesting organisms
d) Randomly place quadrats in many locations as possible

Answers

Answer:d

Explanation: if you’re doing an experiment you Need multiple trials

The best way to sample sessile organism through the use of quadrats is to: d) Randomly place quadrats in many locations as possible.

Sampling can be defined as a statistical process that is typically used for collecting or selecting data (objects, observations, or living organisms) from a larger statistical population by using a specific procedure.

A quadrat can be defined as a rectangular or square plot that is used to randomly mark off (enclose) an area within a habitat, so as to isolate a sample and determine the percentage of species.

Basically, a quadrat is made of wire and it is usually used for:

Sampling sessile organisms (plants).Sampling slow moving animals such as snails, slugs, etc.

In conclusion, the best way to sample sessile organism through the use of quadrats is by randomly placing quadrats in many locations as possible within a habitat.

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question from the four answer choices provided.
2
Question 11
In a study of physical endurance, researchers observed significant increases in the heart rates and breathing rates
exercise.
Which statement best explains the increase in the heart rate and the breathing rate during exercise?
3
Answer
A
The water concentration in the blood increases.
B
Body cells require increased oxygen as energy is expended.
с
Muscle cells increase in temperature and require fluid to reduce the temperature.
D
An increase in muscle activity causes increases in glucose levels in red blood cells.
5
Question 11
Previous
6
7

Answers

Answer:

B

Body cells require increased oxygen as energy is expended.

A man and a woman both have blood type AB. What is the probability their child will be blood type B?

Answers

Answer:

25%

Explanation:

you can solve this with a punnett square as well :)

Help mememmememememmemememem

Answers

Answer:

B

Explanation:

since the impulse is moving form Q to P ...Q will be the receptor and P is the relay neuron which will transfer the impulse to the next neuron

what kind of animal is this?

Answers

Answer:  Desert bandicoot

Explanation:

what would need to change in order for mars atmosphere to support human life?

Answers

Answer: successfully terraform Mars, the atmosphere would need to be raised enough so that humans could walk around without spacesuits. But although tripling the Red Planet's atmospheric pressure might sound like a lot.

Explanation: it's only one-fiftieth of the CO2 necessary to make the atmosphere habitable to Earth creatures.

I’ll give you a thanks, please help!

Answers

Answer:

carbon dioxide

Explanation:

this is formed during photosynthesis

Answer:

Carbon dioxide

What is the main obstacle to cloning the woolly mammoth.

Answers

Cloning of mammals has improved in the last two decades, but no viable mammoth tissue or its intact genome has been found to attempt cloning. According to one research team, a mammoth cannot be recreated, but they will try to eventually grow in an "artificial womb" a hybrid elephant with some woolly mammoth traits

Answer:

A lack of suitable genetic material.

Explanation:

most of the DNA has been destroyed after being frozen for so long.

A textbook weighs 3.2 lbs. How much is that in grams?

Answers

Answer:

1451.5 grams

Explanation:

Answer:

1451.5 grams  :)

Explanation:

Which person participated mostly in the primary level of an economy?
A. A collage professor
B. A coal miner
C. A car mechanic
D. A car factory worker
Please help a girl out‍♀️

Answers

Answer:I know I’m to late, but the answer is B coal miner.

Explanation: I just took the test on apex

•What are flood plains, what do they do?

Answers

Answer:

Floodplains are dynamic natural systems. ... Floodplains provide a wide range of benefits to the ecosystem and community that include: Flood storage and erosion control–offer a broad area for streams and rivers to spread out and accommodate temporary storage of flood water, reducing flood peaks and erosion potential.

1. Name 3 examples of prokaryotes and 3 examples of eukaryotes. Explain how prokaryotes and eukaryotes are similar and different (name at least 2 similarities and 2 differences).​

Answers

Answer:

Explanation:

Prokaryotes: Bacteria and cyanobacteria

eukaryotes: Animals and plants

Similarity: 1. They both contains ribosomes.

2.They both have cytoplasm and DNA

dissimilarity: 1. Double membranous organelles are absent in prokaryotes

2. The well defined nucleus absent in prokaryotes.

Compare a daughter cell to the mother cell after interphase but before prophase step.

Answers

Answer:

Explanation:

This chart may help. The daughter cell will be an identical copy to that of the mother cell.

What is the source of the carbon dioxide that is used in photosynthesis?
sunlight
the soil
the atmosphere
the plant

Answers

Answer:

THE ATMOSPHERE

Explanation:

The atmosphere is the source of the carbon dioxide that is used in photosynthesis. Hence option c is correct.

What is photosynthesis?

Photosynthesis is defined as the process through which green plants use energy from sunlight to transform carbon dioxide and water into food. It is a process that only happens in plants that contain the chlorophyll, a green pigment used in food preparation. Photosynthesis takes place in the chloroplast, a specialized intracellular organelle found in plants and algae, which emerged considerably later.

During photosynthesis, plants take up carbon dioxide (CO2) and water (H2O) from the soil and atmosphere. Plants take in carbon dioxide from the atmosphere as they photosynthesize. Plants can absorb the gas carbon dioxide from the air by way of microscopic holes in their leaves. Once they have carbon dioxide and water, they can use solar energy to create food.

Thus, the atmosphere is the source of the carbon dioxide that is used in photosynthesis. Hence option c is correct.

To learn more about photosynthesis, refer to the link below:

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Please help!
Match each soil horizon to the description of its formation.

Answers

Answer:

A    O    B  C

Explanation:

Answer:

Explanation:

HORIZON B: undergoes the most change, barely resembles parent material. HORIZON O: accumulation of organic material. HORIZON A: decomposed organic material mixes with highly weathered parent material. HORIZON C: parent material barely affected by soil formation process.

A scientist creates a pedigree to map out a family’s inheritance pattern for a genetic disorder. After analyzing the chart, it is determined that the genetic disorder is likely autosomal recessive. Which of the following genotypes would best represent individual B and individual C?
A. Individual B: Hh / Individual C: Hh
B. Individual B: HH / Individual C: HH
C. Individual B: HH / Individual C: hh
D. Individual B: hh / Individual C: hh

Answers

Answer:

A

Explanation:

only one is black while the rest is white

B is out because all the children would be the same

C is out because the children would all be the same

D is out because all the children would be the same

A flounder is a flattened fish that lives on the bottom of bodies of water, while
a tuna is a streamlined fish that swims in the open sea is an example of:
1. adapting to its environment
2. maintaining internal conditions, homeostasis
3. Obtaining and using energy
4. growth and development
5. reproduction

Answers

Answer:

1 adapting to its environment

2 points
What makes a water molecule polar?*
0 it has neutrons
oxygen has a stronger attraction for electrons than hydrogen
hydrogen has a greater pull on protons than oxygen
0 it has 3 atoms

Answers

Answer:

hydrogen has a greater pull on proteins than oxygen

Explanation:

Protons have positive electricity, electrons have negative electricity, and neutrons have no electricity

Which organelles allow plants to support heavy structures such as leaves and
flowers?

Answers

Answer:

central vacuole

Explanation:

In many plant cells there is a single large central vacuole filled with liquid, pressure of the central vacuole allows plants to support heavy structures such as leaves and flowers. pro here here :D

Lower air density means
oxygen molecules in each breath

Answers

Answer:

As air pressure decreases oxygen continues to account for about 21% of the gasses in the air as it does at sea level. But, there is less oxygen because there is less of all of the air's gasses

13. Radha's mother makes fluffy idlis, everyone likes them.
a) How does idli batter become soft?
b) What are the organisms involved in it?

Answers

Answer:

a)by the process of fermentation

b) organism involved in it are yeast

50 POINTS + BRAINLIEST!
Coal is best used as a

A.) fuel
B.) paint
C.) fertilizer
D.)conductor

Answers

Answer:

A.) fuel

Explanation:

Coal is best used as a fuel to generate electric power.

Anthracite is the best quality of coal with least ash content.

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