Which of the following situations
demonstrates a chemical change?
A. wood turning to ashes as it burn's
B. ice forming when water is placed in a freezer
C. sugar dissolving in a glass of hot
tea
D. a board becoming smooth as it is sanded

Answers

Answer 1
A. wood turning to ashes as it burns, because when something burns that is a chemical change
Answer 2
The correct answer is A

Related Questions

A community in which populations of plants and animals remain stable and exist in
balance with each other and the environment

Answers

Answer:

ecological community

Explanation:

A climax community is the final stage of succesion

differences between the structure of the wall of the stomach and the structure of the wall of the ileum​

Answers

Answer:

Wall of stomach : it has three layers of muscle instead of two. Under these muscle layers is the adventitia, layers of connective tissue continuous with the omenta. The epithelium of the stomach forms deep pits, called fundic or oxyntic glands.

wall of ileum : The wall itself is made up of folds, each of which has many tiny finger-like projections known as villi on its surface. The ileum has an extremely large surface area both for the adsorption of enzyme molecules and for the absorption of products of digestion.

proteins are responsibe for

A.) insulating the body
B.) Maintaining the structure of cells and tissue
C.) Storing energy from unused glucose molecules
D.) Holding the blueprints that code for all the cell's activities

Answers

Answer:

B.

Explanation:

Answer:

its a.

Explanation:

im learned protiens in biology like 4 weeks ago.

Help me please!!!!! ASAP!!! ​

Answers

Answer:

Noncyclic photophosphorylation (top) and cyclic photophosphorylation (bottom). These processes are better known as light reactions.

Glycolysis produces 2 ATP molecules, and the Krebs cycle produces 2 more. Electron transport from the molecules of NADH and FADH2 made from glycolysis, the transformation of pyruvate, and the Krebs cycle creates as many as 32 more ATP molecules.

I'm not sure if that'll help you, but yuhhh!

Which of the following best describes chemical weathering? A process in which ice wears away at rocks over a long period of time O A series of changes that moves rocks from one area to another O Any small-scale event such as rain or fog O A process that changes the composition of rocks, causing them to break down.​ PLEASE HELP ME NOW.

Answers

the erosion or disintegration of rocks, building materials, etc., caused by chemical reactions (chiefly with water and substances dissolved in it) rather than by mechanical processes. HOPE THIS HELPS!! :)

what is the relationship between the photosystems and the calvin cycle

Answers

What is the relationship between the photosystems and the Calvin cycle? The photosystems transfer energy to the Calvin cycle through ATP and NADPH.

I hop this helps! :)

match the vocabulary word with the correct definition


reaction that needs oxygen

Monosaccharide used at the beginning big cellular respiration

useable cell energy

An organelle that produces ATP through cellular respiration

Reaction that does not need oxygen


VOCAB
1. Mitochondrion
2. ATP
3. Glucose
4. Aerobic
5. Anaerobic ​

Answers

Answer:

1. mitochondrion to an ATP through cellular respiration

2. ATP to unseable cell energy

3. glucose to monosaccharide used at the beginning big cellular respiration

4. aerobic to reaction that needs oxygen

5. anaerobic to action that does not need oxygen

5. In a tundra ecosystem, the carrying capacity for arctic hares is about 400 individuals. Which of these events is MOST likely to reduce the carrying capacity for arctic hares in the ecosystem by at least 25 percent?

(A) a severe storm that kills about 100 adult and young arctic hares

(B) a 25 percent decrease in the populations of foxes, wolves, or other predators of arctic hares

(C) the arrival in the ecosystem of a species that competes with the arctic hare for its food

(D) a temporary increase in the arctic hare population to more than 425 individuals

(E) a mutation that introduces a new fur color to the arctic hare population

Answers

A temporary increase in the arctic hare population to more than 425

individuals.

Hares are among the primary consumers as they are herbivores while foxes

are  secondary consumers which feeds on the hares.Foxes will hunt the

hares for food which will drastically reduce their population

Increasing their population by 425 individuals with the hares having a

population of 400 will surely decrease their carrying capacity in the tundra

ecosystem.

Read more about Ecosystem on https://brainly.com/question/842527

Question 8 of 10
The molecules that make up food contain energy. How does the human body
get energy from the food molecules?
A. By adding energy to the molecules
B. By breaking and reforming chemical bonds in the molecules
C. By using them to form ionic bonds
D. By combining the molecules together

Answers

Answer: B.) By breaking and reforming chemical bonds in the molecules.

Explanation:

Are there any parts of the human body that get oxygen directly from the air and not from the blood?

Answers

Answer:

The Cornea

is the answer

What part of the microscope give us a sharper image?
a
micro or fine focus
macro focus
light source
on/off button

Answers

I’m pretty sure it’s macro focus.

DNA ___________ is important because it ensures that when a cell divides, the two resulting cells have the same genetic code. Pleaseee help

Answers

Answer: Replication

Explanation: When the cell is preparing to divide it will replicate its DNA so that both of the daughter cells will have a complete set of the DNA. It's like a book of instructions and the cell has to perfectly replicate it so that when it splits into two both of the new cells will have a perfectly made copy of it! Hope this helps :)

what do you waste the most of and how could you repurpose it into something that is beneficial?

Answers

Answer:I dont know

Explanation:

You see, the explanation of me not knowing is that my brain cells have died over the years and i do not know what to do with my life:)

Your friend says that every material can be classified as either good conductor or a good insulator. Is your friend correct? Write a sentence to explain why you agree or disagree?

Answers

Answer:

Your friend is correct. Materials such as copper are good conductors, but poor insulators. However, rubber is a good insulator and a poor electrical and heat conductor.

18.
Which of the following organisms are
producers?
A. humans
B. bears
C. trees
D. fungi
19.

Answers

Trees are producers

I hope this helps

Answer:

Trees

Explanation:

Trees are the only thing on the list that does nothing but help the environment/produce. Its not fungi because fungi is literal harmful bacteria that molded.

We would expect cells found in the active muscles of animals to contain relatively large amounts of which cellular organelle? A) centrioles B) mitochondria Eliminate C) lysosome D) nuclei

Answers

Answer: B.) Mitochondria

Explanation:

In an ecosystem, a deer consumes grass. What percentage of energy will the deer acquire from the grass? 0. 1% 1% 10% 100%.

Answers

In an ecosystem, the energy is transferred between the organisms participating in the food webs from producers and consumers.

The percentage of energy transferred to the deer after feeding on the grass is 10%.

The 10% law of the energy states that:

1. The food chain at each trophic level passes or transmits only 10% of the energy and 90% of the energy is lost as heat.

2. The amount of energy at each trophic level decreases, such that the producers if consuming the 100 J of energy, the deers or primary consumers at the first trophic level will have only 10% of the energy.

Thus, the deer will possess only 10% of the energy at each trophic level, following the 10% law.

The correct answer is Option C.

To know more about 10% law, refer to the following link:

https://brainly.com/question/1367643?referrer=searchResults

why is biodiversity in a certain environment important?


pag tama ung answer i brainliest you

Answers

Answer:

That's right. You have listed important determinants and features of biodiversity.

Explanation:

Pa fallow po pls.

No clue dude tuff luck my guy

In the area illustrated, what process is evident over time?

Answers

In the area illustrated in the image attached, the biological process which is evident over time is: ecological succession.

Ecology can be defined as the scientific study of the relationship existing between living organisms such as plants and animals with respect to their physical and biological environment (abiotic factor).

In Ecology, ecological succession refers to a process through which the structure of an ecological (biological) community evolves or changes over time.

Generally, there are three (3) main types of ecological succession and these include:

Primary successionSecondary successionCyclic succession

From the ecological (biological) community illustrated in the image attached, we can deduce that there is an evolution (change) in the species of plants growing over time. This ranges from weeds during the first visit to pine and oak trees during the seventh visit.

Read more on ecological succession here: https://brainly.com/question/5187022

Explain step by step or in simple terms how does the body regulate water ​

Answers

Answer:

The kidneys can regulate water levels in the body; they conserve water if you are dehydrated, and they can make urine more dilute to expel excess water if necessary. Water is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs.

what happens when a vacuole releases its store of water?

Answers

If the central vacuole in plants cell loses its water then the plant will plasmolyse or deflate.

In Mendel's experiments with pea plants, the allele for tall pea plants was dominant and the allele for short pea plants was recessive. When did Mendel see short pea plants?

A. when the plants had two dominant alleles for height

B. when the dominant allele for tall plants was not present

C. when the plants had both a dominant allele and a recessive allele

D. when the pea plants produced yellow seeds
PLS HELP!

Answers

Answer:

B

Explanation:

if the reccesive trait is what you want then you cannot have any dominant alleles present

should the nation of warring wizards be considered a nation. why or why not

Answers

Answer: no

Explanation:

The nation of Warring Wizards should not be considered a nation because they all live in different places and only 2 of them speak Russian.

How does your body respond to a decrease in blood glucose

Answers

Answer:

When blood sugar drops too low, the level of insulin declines and and other cells in the pancreas release glucagon, which causes the liver to turn stored glycogen back into glucose and release it into the blood. This brings blood sugar levels back up to normal

(ID Level 18
OC
I start with "e"end with "e".
have whole countries inside
me. What am I?

Answers

Answer:

Europe

Explanation:

The only system that does not pass through the thalamus on its way to the cerebral cortex is the __________ system. A. Tactile B. Gustatory C. Olfactory D. Visual.

Answers

The cerebral cortex process the information delivered by the thalamus, the information is related to the senses.

The only system that does not pass through the thalamus on its way to the cerebral cortex is the olfactory system.

The systems that pass through the thalamus are:

1. The visual sensation or information passes through the visual occipital cortex. It then delivers the information from the thalamus to the cerebral cortex.

2. The gustatory cortex is the region of the cerebral cortex, which is responsible for the senses of tastes and flavor. It also passes through the thalamus on its way to the cerebral cortex.

3. The tactile system includes the senses of touch. It is the information received through the receptors present on the skin. It also delivers the information to the cerebral cortex via the thalamus.

4. The olfaction system is not involved in the thalamus pathway. The olfactory cortex is present in the temporal lobe, which is not routed through the thalamus.

Thus, the correct answer is Option C.

To know more about the olfactory system, refer to the following link:

https://brainly.com/question/7500611

Answer:

C. Olfactory

Explanation:

PLEASE HELP WILL GIVE BRAINLIST!

A population of rhinos in Africa is 112. this year there were 17 births and eight deaths in the population. What is the change in population? Do we have a positive, negative, or zero change in population? How many members are in the new population?

Answer should contain the following information: work for calculating the change in population positive, negative, or zero change in population. work for calculating the new population

Answers

Explanation:

Why anti-poaching?

Rhinos have inhabited the African continent for over a million years and they play a huge role in their ecosystems. The illegal trade in powders made from their horns, which in some countries in Asia is still considered a medicine or simply a symbol of wealth, nearly led to the extinction of the African rhino.

In 1875, there were still more than 1,000,000 rhinos living in the vast grasslands of Africa. Today the populations of the two species of black rhino and white rhino are estimated to contain about 5,000 and 20,000 animals respectively. The senseless killings continue. Since 2007, the number of rhinos hunted in Africa has increased by almost 9,000%.

It is therefore our call to stop the slaughter of rhinos with all our might.

What evidence does the cladogram provide

Answers

A phylogeny is a hypothesized relationship between groups of creatures that is represented by a cladogram. A scientist investigating phylogenetic systematics uses a cladogram to depict the groups of species being studied, their relationships, and their most common ancestors.

What is the term used to describe when a molecule moves into the cell through a
transport protein but does not require energy to do so?
a) facilitated diffusion
b) osmosis
c) active transport
d) filtration

What’s the correct answer

Answers

A) facilitated diffusion :)

How does a forest fire impact a population of birds that nest in the trees.

Answers

Answer:

If a forest fire occurs it will impact a population of birds that nest in those trees because their habitat will be burnt down. This will provoke the birds to find a new habitat which can be hard if the entire forest is burnt down. Additionally resources such as food will be burned down as well.

Assuming birds escape a fire, smoke might still affect their health in ways that aren’t very well understood. Scientists have found that smoke can damage lung tissue and leave the animals susceptible to potentially lethal respiratory infections.
Other Questions
Which of the following is surrounded by two phospholipid bilayers?a) Ribosomes b) the vesiclesC. CYTOPLASMD) THE NUCLEOPL Look carefully, what do you see? (This is a riddle, the answer is not tiger/tiger print/etc) Please help me solve it! I WILL GIVE 30 POINTS TO THOSE WHO FILL IN THE BLANK CORRECTLY. Find the value of X What is the equation of the line that passes through the point (-1, -7) and has aslope of 2? Complete the sentences. Circle the correct answers. A customer buys 17. 01 in gas and requests one five dollar [$5] lottery ticket, two one dollar [$1] lottery tickets, and one [$3] lottery ticket. He gives you two winning tickets to be redeemed: one for ($5) and the other for ($2). How much change would he receive from a $100 bill?. PLEASE HELP!! (WILL GIVE BRAINLIEST!!)Complete and submit this assignment by the due date to receive full credit.(10 points)Score1. Choose two themes that would be appropriate for thematic time lines of important events from prehistory to A.D. 1600. Write these themes below.Answer:Theme 1: ______________________________________Theme 2: ______________________________________(10 points)Score2. Write five events for each of the two themes you chose.Answer:Theme 1: ______________________________________ Event 1: _____________________________________________________________________________ Event 2: _____________________________________________________________________________ Event 3: _____________________________________________________________________________ Event 4: _____________________________________________________________________________ Event 5: _____________________________________________________________________________Theme 2: ______________________________________ Event 1: _____________________________________________________________________________ Event 2: _____________________________________________________________________________ Event 3: _____________________________________________________________________________ Event 4: _____________________________________________________________________________ Event 5: _____________________________________________________________________________(5 points)Score3. Choose one of the two themes from #1 on which to create a thematic time line. Write the theme below.Answer:Theme: ______________________________________(25 points)Score4. Write the five time line entries below for the theme you chose in #3. For each entry, write a short paragraph that explains why you included the event on your time line.Answer: Event 1: _____________________________________________________________________________Rationale: Event 2: _____________________________________________________________________________Rationale: Event 3: _____________________________________________________________________________Rationale: Event 4: _____________________________________________________________________________Rationale: Event 5: _____________________________________________________________________________Rationale:(50 points)Score5. Submit a thematic time line for the theme you chose that includes at least five events. (You can include up to ten events on your time line.) You can create the time line below or submit a separate Word or PowerPoint document containing the time line. If your time line is in a separate document, submit that document to your teacher by the due date.Answer: Given the function f(x) = x. If the function is shifted right 2 units, then shifted down 1.5 units and reflected about the x-axis, what is the equation of the new function? Use the area model to multiply 148q+12r.First, find the partial products. Write numbers as integers, decimals, or simplified proper or improper fractions. ANS WER AS SOON AS POSSIBLE AND I WILL MARK U AS BRAINLIST If a = 3 and b=i, then find the value of a^ 3b in fully simplified form. Anyone know to know they are hiring?? (Job) how to application to restaurant, pizza, kfc, starbuck, food 4 less ( fast food, Grocery....) What is the function of tRNA?A.catalyze the assembly of amino acids into a proteinB.carry genetic instructions for building a proteinC.bring an amino acid to the ribosome Shell Scripting:In the following statement, X is the initial value: for (( X = N; X ITS DUE TMRW!! PLS HELPWhat is the value of x in the solution to this system of equations?5x 5y = 120y= 7x + 8Enter your answer in the box. can someone tell me if i did this right lol An astronaut uses a pendulum with a mass of 0.200 kg to measure the acceleration due to gravity on Planet X. He lifts the pendulum's mass a vertical height of 0.500 m and is able to determine that it gains 15.0 J of gravitational potential energy as it is lifted. Using this information, calculate the acceleration due to gravity (g) on Planet X If differential heating did not occur on earth, which scenario would become true?. Which sentence is incorrect? A. -4 > -7 B. 5/2=2.5 C. -2.5 A pattern rule is square, triangle, circle, oval. What is the 50th shape?