A student wants to compare how long a flashlight will continue to shine using different brands of batteries. How can the student make sure that the test is fair?

Answers

Answer 1

Answer:

start with unused fresh out of the pack batteries

Answer 2

Answer:

THE TYPE OF FLASHLIGHT USED

Explanation:


Related Questions

which of the following would be a quantitative observation
a. the attractiveness of the tail feathers of a male peacock is compared
b. butterfly wings are assessed to see which is the most orange in appearance
c. the height of radish seedlings is measured
d. the odor of different plants is compared to see which smells the worst

Answers

Answer:

c. the height of radish seedlings is measured

Explanation:

Quantitative measurements revolve around the quantity of things and exact measurements. The measured height of a radish seedling is the perfect example of that.

Memory technique:

Quantitative observations involve quantity (numbers).Qualitative observations involve quality (descriptions, features, i.e. color, smell, shape)

Which product in photosynthesis is a waste product for the organisms that produce It? (2 points) OATP Oxygen OGlucose x Carbon dioxide​

Answers

Answer:

Oxygen

Explanation:

Organisms performing photosynthesis use sunlight and carbon dioxide to produce glucose, which is then turned into sugar. Oxygen is the waste product in the process.

Individuals who lack lactase are unable to breaķ down the sugar lactose during digestion
and are said to be lactose intolerant. Which type of biomolecule is lactase?
A) protein B) lipid C) carbohydrate D) nucleic acid

Answers

Answer:

the biomolecule is something called enzymes also known as protein.

Explanation:

An enzyme that is located in our small intestine called lactase breaks down the lactose into two parts. Only after the two sugars (glucose and galactose) have been separated can then they be absorbed by our bowel.

What is a big difference between to
biosphere and the geosphere?

Answers

Bio is Life Geo is Earth

Find the number of atoms of each element.
Ca(OH2)3
Ca:
0:
H:
please!!!

Answers

Explanation:

Calcium Hydroxide has three atoms 5 atoms in each molecule.

One calcium atom

Two oxygen atoms

Two hydrogen atoms

So total 5NA. present in NA molecules.......

Show work

13.5mm = ?m

Answers

Answer:

0.0135

Explanation:

Move the decimal place three times to the left

Answer:

0.013 m i believe

Explanation:

the food prevented from leaving the stomach by a _________​

Answers

Answer:

valve

Explanation:

Answer:

Valve!

Explanation:

A “valve” called the lower esophageal sphincter (LES) is located just before the opening to the stomach. This valve opens to let food pass into the stomach from the esophagus and it prevents food from moving back up into the esophagus from the stomach.

Steroids include substances such as?

Answers

Answer:

The steroid core structure is typically composed of seventeen carbon atoms, bonded in four "fused" rings

Explanation:

Answer:

testosterone:an anabolic steroid... principal sex hormones

dexamethasone:a synthetic corticosteroid drug

cholic acid

Pls I need these answers ASAP

Answers

Answer:

Okay, from what i understand, you should make a column with the kind of snake, and another one with Mortality percentage from the venom of those snake's bites.

Use the numbers to guide yourself... for example

Kind of Snake                                          I Mortality Percentage

(1)southern United States copperhead I (1) less than 1%

Attraction between molecules of the same
substance solution

Answers

Answer:

The attraction among molecules of a substance is called cohesion. Cohesion due to hydrogen bonds makes water molecules "stick together". The attraction among molecules of different substances is called adhesion.

Hope this helps :)

During meiosis, the chromatids of homologous chromosomes have just undergone crossing over. Which of the following phases will the cell enter next?

A: Metaphase I
B: Anaphase II
C: Prophase II
D: Telophase I

Answers

As I know the process of crossing over occurs in prophase 1 so the next phase will be metaphase 1
Hope this helps!!

Answer:

Metaphase I

Explanation:

Got it right on the test nun to worry about.

2. THE DEPRESSION THAT RESULTS WHEN A VOLCANIC CONE COLLASPES OVER AN EMPTYING
WALEN
MAGMA CHAMBER IS A

Answers

Answer: A caldera is a large depression formed when a volcano erupts and collapses. During a volcanic eruption, magma present in the magma chamber underneath the volcano is expelled, often forcefully. When the magma chamber empties, the support that the magma had provided inside the chamber disappears.

Explanation:

Explain the importance
of decomposers to the overall
biogeochemical cycle.

Answers

Answer: Decomposers plan an important role in the biogeochemical cycling for nutrients in the environment as they are responsible for the breakdown and return of nutrients back to the environment in their native state.

Decomposers are essential for the biogeochemical cycle as they facilitate the recycling of nutrients, provide energy for other organisms, and help maintain the health and balance of ecosystems by Breaking down organic matter, Recycling nutrients, Energy flow and Detoxification.

Without decomposers, organic matter would accumulate, nutrients would become locked up, and energy flow within ecosystems would be disrupted.

Decomposers play a crucial role in the overall biogeochemical cycle. Here's why they are important:


Breaking down organic matter: Decomposers, such as bacteria and fungi, break down dead plants, animals, and other organic materials into simpler compounds. They do this through the process of decomposition, where they release enzymes that break down complex molecules into smaller, more manageable forms.

Recycling nutrients: By decomposing organic matter, decomposers release essential nutrients back into the ecosystem. These nutrients, such as carbon, nitrogen, phosphorus, and sulfur, are then made available for uptake by plants and other organisms. This recycling of nutrients is vital for maintaining the balance and productivity of ecosystems.

Energy flow: Decomposers also play a crucial role in energy flow within ecosystems. When they break down organic matter, they release energy in the form of heat. This energy can then be used by other organisms in the ecosystem, such as primary consumers (herbivores) and secondary consumers (carnivores), to carry out their life processes.

Detoxification: Decomposers are capable of breaking down and detoxifying harmful substances and pollutants in the environment. For example, certain bacteria can break down pesticides and other chemical pollutants, helping to reduce their negative impact on the ecosystem.

To know more about Decomposers:

https://brainly.com/question/33382684

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A developer wants to extend a golf course into a wetland. Outline
environmental arguments you could make against this plan.

Answers

Answer:

This is a wrong decision.

Explanation:

This decision is not right because by removing wetland means removal of habitat of millions of organisms living in that wetland. The advantages of wetland is more than golf course. Golf course is only used for sport purpose but wetland has a number of purposes i. e. it provides protection against floods which occurs due to climate change, absorb pollutants and enhances water quality.

Geckos are a type of small lizard that live in tropical areas. Geckos are often eaten by birds, snakes and larger lizards so they need to blend into their surroundings. In one area, scientists had always found brown and green geckos that blended in with the grass and the leaves on the ground. Over time, though they found yellow geckos in the same population. Three students were talking about why there were yellow geckos. Ciena thought that the change came from a mutation in the population. Tibor thought the change came from the environment. Sasha though that Ciena and Tibor were both right. Who do you agree with and why do you think that?​

Answers

Answer:

Not going to say this is right but, I think that Tibor is correct because if the land has changed more over time then the yellow ones have adapted to the new living conditions while the green one have found ways to live in that environment.

hi I'm lonely are you lonely

Answers

Answer:Very much so. But that is by my own choice so I am good with it.

Explanation:Choose to be or to not be lonely.

Answer:

YUP!!!!!!!!!!!

Explanation:

FRIENDS PLS!!!!!!!!!!

List three types of asexual reproductions (other than vegetative) and define each in a short paragraph.

Answers

Answer:

Budding, spore formation, binary fission

Explanation:

i need help please ​

Answers

Answer:

can't really see the questions pls do it a different angle

What process is depicted in the following image?



Conjugation
Transformation
Binary fission
Transduction

Answers

Answer:

its transformation! so option B

Explanation:

Within the image you can see the final product is a "Genetically Transformed cell" and within lesson 03.01 HONORS on flvs there are multiple dropdowns giving definitions. one of these dropdowns contains this exact image, and it is titled 'Transformation' in the lesson.

I am currently taking this course, so actually searched brainly for that answer initially. I decided to take the test and come back with the right answer to help any other students like me! A tip for taking tests on flvs: You can have flvs open on multiple tabs, so the best way to take tests like this is to have the test open on one tab, and the lesson plan on another tab. That way you can read through the lesson and look at any graphs while actively in the test! Hope I could help at least a little, have a great school year everyone.

Predicting how the utilization of nonrenewable resources impacts the dom in the deep ocean
system?

Answers

Answer:

Non-renewable energies such as those derived from oil affect the seabed in a serious and lethal way for its fauna / flora.

When oil fields are drilled or when they have losses, they flood the seas with oil, these seas, having living organisms, will be directly affected in a lethal way by this unexploited fuel.

In addition, petroleum derivatives such as naphtha are used for water cars such as boats that pollute the water

Explanation:

Environmental awareness led to the search for an alternative as a source of energy that are renewable sources, which make a lot of competition today to polluting or non-renewable sources.

In addition, it must be considered that the pollutants have a limit, since they are exhausted, and on the other hand, an economy that solvent and supports all the expenses of the extraction of these from the depths of the seas is needed.

Answer: When coal and oil are burned, they release particles that can pollute the air, water, and land. ... Burning fossil fuels also upsets Earth's “carbon budget,” which balances the carbon in the ocean, earth, and air. When fossil fuels are combusted (heated), they release carbon dioxide into the atmosphere.

Explanation:


b) Write about pest control?

Answers

Answer:

Pest control is helpful I guess...

Explanation: Pest control uses lots of chemicals and poison stuff to kill those vexing pests but most importantly it kills them its a dangerous job if you don't know what your doing.

Answer:

give the answer in short Press control means when in our home of dirty Cockroaches and small insects then we Press control our house to get out all the dirty insects

Explanation:

Mansa is up to this if this is correct then mark me as a brainliest

Which process occurs within the mitochondria?
lactic acid fermentation
alcohol fermentation
glycolysis
Krebs cycle

Answers

Answer:

Krebs cycle.

It's also known as the citric acid cycle. It releases stored energy through the oxidation of acetyl-CoA derived from carbohydrates, fats, and proteins.

The biological process occurs within the mitochondria is: D. Krebs cycle

Cellular respiration refer to series of metabolic reactions typically occuring in all living cells, in order to produce energy in the form of adenosine triphosphate (ATP).

Basically, there are three (3) main stages involved in cellular respiration and these include:

Glycolysis.Krebs cycle.Electron transport chain.

Krebs cycle is an aerobic reaction that takes place in the mitochondria of both prokaryotic and eukaryotic cells and in the presence of oxygen. Also, the Krebs cycle produces carbon dioxide ([tex]CO_2[/tex]), two (2) adenosine triphosphate (ATP), six (6) NADH, and two (2) FADH.

Read more: https://brainly.com/question/12827458

Humans are altering the carbon cycle by _____. (5 Points) killing off large numbers of animals, which reduces the amount of carbon in the system growing crops, which increases the amount of carbon in the system increasing their population, which reduces carbon dioxide from the atmosphere burning fossil fuels, which adds carbon dioxide to the atmosphere extracting fossil fuels from the ground, which removes carbon from the system

Answers

Answer:

By burning fossil fuels, which adds carbon dioxide in the atmosphere.

Explanation:

The carrying capacity of an ecosystem will most likely become unbalanced when?

Answers

Answer:

In a population at its carrying capacity, there are as many organisms of that species as the habitat can support. ... If resources are being used faster than they are being replenished, then the species has exceeded its carrying capacity. If this occurs, the population will then decrease in size.

Explanation:

When resources are depleted faster than they are replenished, the species has reached its carrying capacity. If this happens, the population will shrink in size.

What is carrying capacity?

Carrying capacity is defined as the average population size of a species in a given habitat.

Environmental factors such as adequate food, shelter, water, and mates limit the species population size. If these requirements are not met, the population will decline until the resources recover.

Carrying capacity, or the maximum number of people that an environment can support over time without destroying or degrading it, is determined by three key factors: food availability, water availability, and space.

Carrying capacity is the maximum number, density, or biomass of people that a given area can sustainably support.

This is likely to change over time and is influenced by environmental factors, resources, and the presence of predators, disease agents, and competitors.

Thus, any disturbance in these factors can lead to an unbalanced carrying capacity.

For more details regarding carrying capacity, visit:

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“A lava monster needs a molten plastic-consistency to survive. What later should it be in?”
- lithosphere
- asthenosphere
- inner core
- outter core

Can someone please help me with this asap?

Answers

Answer:

Asthenosphere

Explanation:

The upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.

what is stimuli in biology in terms of igcse ????​

Answers

Answer: A Stimulus is any change either internal or external which leads to a response. This could be a noise, smell or the changes in blood sugar level.

Explanation:

Give one word answer for the following. responsible for hereditary characteristics in living organisms.

Answers

Answer:

genes

Explanation:

Organisms inherit genetic material from their parents in the form of homologous chromosomes, containing a unique combination of DNA sequences that code for genes. The specific location of a DNA sequence within a chromosome is known as a locus.

Please help. I’m kinda dumb

Answers

Answer:

why do you say that?

Explanation:

I can't see what it says even when i pull the piscture up.

Sorry :|

Have a great day/night and stay safe! :D :)

I'm not quite sure either, but from the instructions it appears that you should have some sort of "subject" and two of the subject's relatives. Then you just have to list if the subject and the two relatives show the traits. I believe that the subject is either you, since the course says "Your Genetic Traits"

I hope this helped a bit.

The stems and fruits of pineapple plants contain a group of protein-digesting enzymes collectively
called bromelain and often used as an antibrowning agent for fruits and vegetables. Fruits and
vegetables brown when they are bruised during transport or sliced and exposed to air. This browning is
controlled by enzymatic pathways that produce brown pigments. The browning of fruits and vegetables
reduces the nutritional value of the food, so antibrowning agents such as bromelain are used.

Answers

Answer:

c

Explanation:

Matthias Schleiden proposed that a plant grows by the division of cells and is composed entirely of cells. Which component of the cell theory is supported by Schleiden’s contribution?


The activity of an organism depends on the energy it consumes.

The activity of an organism depends on the energy it consumes.


All living organisms are made up of one or many cells.

All living organisms are made up of one or many cells.


All cells are physically and chemically similar.

All cells are physically and chemically similar.


Energy flow occurs within cells.

Answers

Answer: All living organisms are made up of one or many cells.

Explanation:

In 1830s, botanist Matthias Schleiden studied the tissues individually and proposed the cell theory for the first time. According to him all the living beings are made up of cells and cell is the basic unit of life.

As according to him in the cell division he was able to observe that the plants are made up of cells. This observation is indicating towards the fact that all living organisms are made up of one or many cells.

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