Question 23 of 25

PLEASE ANSWER!!!!
How can you be certain that a
chemical change has happened?
O A. A new substance is formed.
O B. A substance changes state.
O C. The color of a material changes.
O D. The amount of a material changes.

Answers

Answer 1
A
A formed substance changes and it state change

Related Questions

Is a phytoplankton a producer?

Answers

Answer:

Yes

Explanation:

How can a mutation affect protein synthesis by a cell? do you think there are different consequences if it happens in a gamete cell (sperm or egg) versus a non-gamete cell?

Answers

A mutation affects protein synthesis by a cell by changing the instructions of genes for making a protein, as a variant can cause a protein to malfunction or not to be produced at all. Yes, there are different consequences if it happens in a gamete cell versus a non-gamete cell.

The mutation affects protein synthesis in a cell due to the involvement of genes as they are responsible for coding proteins, needed for all of the functions of the body and to build strong body structures. So, a mutation that is affecting could change the way how a protein is made.

If a mutation occurs in cells that are making gametes by the process of meiosis or during the meiosis process itself, it has the chance to be passed on to the next offspring and will contribute to the condition of genetic variability of a particular population. Mutations are considered the sole source of genetic variability that may have the chance to occur in asexual reproduction.

If a gene is made to alter in a germ cell, then the mutation will be termed germinal mutation because germ cells will give rise to gametes so that some gametes will carry the process of mutation and can be passed on to the subsequent generations.

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Explain how the processes of diffusion, passive transport, and active transport occur and why are they important to cells

Answers

While active transport requires energy and work, passive transport does not. There are several different types of this easy movement of molecules. ... The membrane proteins then grab one molecule and shift their position to bring the molecule into the cell

When you engage in heavy exercise, more often then not, your breathing rate and
heart rate increase. Explain what purpose both increased breathing rate and heart
rate would serve in regard to cellular respiration.

Answers

Answer:

Breathing rate increases to provide the body (exercising muscles) with oxygen at a higher rate. Heart rate increases to deliver the oxygen (and glucose) to the respiring muscles more efficiently. The heart, lungs and circulatory system working together make up the cardiovascular system.

How do sediments eroded by water become more smooth and round​

Answers

Answer: Liquid water is the major agent of erosion on Earth. Rain, rivers, floods, lakes, and the ocean carry away bits of soil and sand and slowly wash away the sediment causing it to become more round and smooth.

I hope this helps!

Answer:

through friction.

Explanation:

The sediments rub together to become smoother. Sediments that are transported in a mass by water or stream are in motion with respect to the motion of the stream water. They bump into each other which makes extruding parts vulnerable to getting knocked off which makes these particles round.

can someone help me on this one? ​

Answers

Answer:

metaphas

Explanation:

its in the middle

Answer:

metaphse

Explanation:

its just is i think

involvement of cd 8 and cd 3 lymphocytes in the transport of eimeria necatrix sporozoites within the intestinal mucosa of chickens. parasitology research, 87(5), 405-408.

Answers

Both cytotoxic T cells (CD8+ naive T cells) and T helper cells (CD4+ naive T cells) are activated by the protein complex and T cell co-receptor known as CD3 (cluster of differentiation 3).

What does the study indiacte about the involvement of cd8+ and cd3+ lymphocytes in the transport of eimeria necatrix sporozoites?A panel of six monoclonal antibodies to several chicken lymphocyte surface markers was used to analyze the phenotypic of cells carrying Eimeria necatrix sporozoites during a primary infection. At 8, 12 and 18 hours after infection, sporozoites and the cells containing them were investigated using two-color immunoflorescence and confocal microscopy. At all times under consideration, CD8 + (15%) or CD3+ (13-22%) cells contained the majority of the parasites detected within lymphocytes. The percentages of alphabeta TCR+ (5%) and deltagamma TCR+ (5%) cells were lower. At any time point, no sporozoites were discovered in CD 4+ or IgM+ cells.

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Oil and natural gas eventually reached layers of rock through which they could not pass called _________ _______.

Multiple choice question.

A)
deep rock


B)
permeable rock


C)
impermeable rock


D)
cement

Answers

C is your answer! Good luck
C is what I think it’s is

variation in intergroup relationships among species and among and within local populations of african apes

Answers

Variation in intergroup relationships among species and among and within local populations of African apes-evolutionary process

despite the truth that many animals shield important sources from conspecifics at some stage in interactions, several primate species automatically have interaction in tolerant encounters. In terms of evolutionary process intergroup relationships, as an instance, African apes and people (Homininae) show off full-size range, and local human groups are hooked up thru a community of affiliative relationships amongst corporations. We have to have a look at variance between species, between populations, and inside populations to be able to comprehend this range and its evolution. even as bonobos' intergroup connections are typically affiliative, each jap and western chimpanzees often exhibit adverse intergroup ties. despite the fact that the percentages of corporations with numerous adult males within the genus Gorilla range, all subspecies show off great domestic range overlap and each adversarial and affiliative intergroup interactions. in regards to neighborhood populations of the same (sub)species, there are few variations between Pan and Gorilla. The distribution of girls within corporations seems to play a position in the affiliative relationships among bonobos, however intergroup connections differ in the identical neighborhood populations in different species. those patterns in bonobos seem like just like the ones in local human communities, wherein lady dispersal amongst corporations performs a huge function in affiliative relationships and intergroup connections vary for extraordinary combinations of companies. All gorilla subspecies showcase a variety of intergroup connections, from affiliative to competitive, and relatives relationships between leading males are vital to the development of affiliative relationships. studies on intergroup variation, the roles played through ladies and men in that variation, and the genetic make-up of the neighborhood populations may additionally assist us higher apprehend the evolutionary process that gave upward thrust to neighborhood groups within the Homininae.

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between the nucleus and the electrons is empty space ?

Answers

Answer:

There are protons

Explanation:

Seagrasses are flowering plants which grow in the photic zones of marine environments. Which factor would be abiotic limiting factor for seagrass growth?
A) water temperature
B) amount of available sunlight
C) density of the animal population Eliminate
D) concentration of dissolved nutrients

Answers

Answer:

C.

Explanation:

Density of the animal population eliminate.

This can effect the seagrass growth.

Another one maybe? Please help! The function of messenger RNA (mRNA) is:
A) To bring a sequence of nucleotides from DNA to the ribosome
B) To bind RNA to the ribosome
C) To deliver amino acids to the ribosome
D) All of the above
E) None of the above

Answers

Answer:

b

Explanation:

16. In living things, traits are passed on from one generation to the next by the
transfer of *
blood
minerals
Calories
DNA

Please help I don’t understand

Answers

Answer:

the fourth answer DNA is correct

A student draws a model of cells in a solution. The arrows indicate the direction water will move with respect to each of the cells.



In which type of solution are the cells?

Answers

Answer:isotoni

Explanation:

Answer:

isotonic

Explanation:

PLZ HELP ASAP I’ll GIVE BRAINLEST Why is water considered to be a Polar Molecule?

Answers

Water is considered to be a polar molecule because one side of the molecule is a different charge than the other side of the molecule

wild animal attack is which type of disaster
(a) biological
(b) geological

please help me ​

Answers

Wild animal attacks should qualify as biological disasters rather than geological disasters.

Disasters generally refer to accidents that happen rather suddenly and result in widespread damages or loss of lives

Biological disasters are disasters whose causes have biological origins such as plants, animals, humans, and microbes.Geographical disasters are caused by natural geographical events such as landslides, cyclones, hurricanes, volcanic eruptions, and so on.

Wild animals are biological organisms, hence, an attack from them would be a biological disaster.

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what are the three most basic functions of nutrients? regulate metabolic reactions, detoxify life-threatening substances, provide materials for body structure activate compounds to prevent malnutrition, provide materials for body structure, provide energy for body processes detoxify life-threatening substances, activate compounds to prevent malnutrition, regulate metabolic reactions provide materials for body structure, serve as regulators of metabolic reactions, may provide energy for body processes

Answers

The three  basic functions of nutrients are:

1. serve as regulators of metabolic reactions

2. provide energy for body processes

5. provide materials for body structure.

The correct options are 1,2,5.

The body need nutrients, chemical substances found in food, to function effectively and preserve health. Proteins, lipids, carbs, vitamins, and minerals are a few examples. Source: Office of Dietary Supplements, National Institutes of Health.

Three primary roles that nutrients play in the body include: supplying energy, supporting bodily structure, and/or controlling chemical reactions. These fundamental processes let us to move, expel waste, breathe, develop, and reproduce as well as sense and react to our surroundings.

The complete question is:

what are the most basic functions of nutrients?

1. serve as regulators of metabolic reactions

2. provide energy for body processes

3. activate compounds to prevent cancer

4. detoxify life-threatening substances

5. provide materials for body structure

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Energy flow in an ecosystem is best represented by _______. a. the predator/prey relationship b. food chains c. food webs d. autotrophs please select the best answer from the choices provided a b c d

Answers

Energy flow in an ecosystem is best represented by c. food webs.

In the field of ecology, we can describe the food web as a representation of all the food chains of a particular ecosystem.

In an ecosystem, there are many organisms that act as prey and predators for each other through which energy flows in the ecosystem.

As a food web will represent all the prey as well as predator organisms and also depict what eats what, hence the energy flow in an ecosystem can best be represented by food webs.

Other options, such as food chain, are not correct as a food chain is a representation of a single energy flow system of an ecosystem. To determine the energy flow of the whole ecosystem, a food web is required.

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Answer:

c. food webs

Explanation:

Which bacteria produces 2 daughter cells every 20 minutes?

Answers

Answer:

The bacterium Escherichia coli

Why can’t your body heal an amputation the same way it can heal a cut?

Answers

Answer:

Because there is too much to fix with an apmutation

Explanation:

A cut will usually just close itself up but an amputation cant do that.

Describe any significant differences you observe between the experimental and control aquariums.

Answers

The significant differences I observe between the experimental and control aquariums is that the experimental is seen as a group that we alter their variable in while the control group we cannot. The control aquarium is used for comparison.

What is the differences about?

A factor that is known to bring about a significant difference that I have noticed is said to be the color of the water.

Note that In the control aquarium, the color of the water as at the time after 30 days was known to be the same as  day one but in regards to the  experimental aquarium, the water is one that has turned to a green tint on its 30th day and this is said to be quite different from its first day which was clear. This can be due to the fertilizer that was added to the experimental plot.

Therefore, The significant differences I observe between the experimental and control aquariums is that the experimental is seen as a group that we alter their variable in while the control group we cannot. The control aquarium is used for comparison.

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To test your hypothesis, the same fertilizer from the farm will be mixed into the water of one aquarium (experimental) and the other will be left alone (control). Each will be allowed to sit for several days in sunlight. Move the slider to see the results of the experiment. 2. Describe any significant differences you observe between the experimental and control aquariums.

The resting metabolic rate of an adult male Gorilla is 8,000 kcal/day. How many calories must he eat every day in order to survive?

Answers

did you end up getting the answer?

Which type of molecule would be most affected by a substitution mutation in a gene?
a. Sugar
b. Phosphate
c.Protein
d.Carbohydrate

Answers

A if wrong I’m sorry

IN YOUR OWN WORDS what is
Interphase
G0 (Gap 0)
G1 (Gap 1)
S (Synthesis)
G2 (Gap 2)
Mitosis

Answers

Answer:

interphase:(longest stage in the cell cycle)

g1:initial growth to normal size

s:synthesis of DNA (replication)

g2:growth to 2x the normal size

7. Which statement is correct?
1. Nitrogen must cycle through an ecosystem because it is used to make
proteins and nucleic acids.
2. Nitrogen makes up most of Earth's atmosphere.
3. Nitrogen gas from the atmosphere cannot be used by plants to make organic
compounds.
4. all of the above

Answers

I think the answer is 4 all of the above

phylogenomic analysis of the parrots of the world distinguishes artifactual from biological sources of gene tree discordance

Answers

The correct answer is heterogeneous levels of phylogenetic signal among individuals within datasets may cause artifactual sources of topological discordance.

Individuals with varying levels of phylogenetic signal within datasets may be artifactual sources of topological discordance. We investigated how the information content of tips and subclades influences topological discordance in the parrots (Order: Psittaciformes), a diverse and critically endangered clade of nearly 400 species. We estimated concatenated and species trees for 382 ingroup taxa using ultra conserved elements from 96% of the clade's species-level diversity. We discovered that discordance between tree topologies was most common at nodes dating from the late Miocene to the Pliocene, and frequently at the taxonomic level of genus. a better predictor of metrics supporting alternative topologies.

The complete question is- What is phylogenomic analysis of the parrots of the world distinguishes artifactual from biological sources of gene tree discordance. explain?

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explain how ground water is recharged? ​

Answers

Explanation: Natural groundwater recharge occurs as precipitation falls on the land surface, infiltrates into soils, and moves through pore spaces down to the water table. Natural recharge also can occur as surface-water leakage from rivers, streams, lakes, and wetlands.

Answer:

Groundwater is recharged naturally by rain and snow melt and to a smaller extent by surface water (rivers and lakes). Recharge may be impeded somewhat by human activities including paving, development, or logging.

Explanation:

Which reactant of photosynthesis is also involved in climate change?

A oxygen
B carbon dioxide
C water
D sugar

Answers

Answer:

B. Carbon dioxide

Explanation:

First of all, let’s write out the photosynthesis equation to identify the products and reactants.

6CO2 + 6H2O + energy —> C6H12O6 + 6H2O

In a chemical equation with the arrow pointing right, the reactants are on the left and the products on the right.

In photosynthesis, the reactants, carbon dioxide, water, and energy, react to form the products of glucose (sugar) and oxygen.

Now, let’s look at the answer choices. We can automatically eliminate choices A (oxygen) and D (sugar) because they are products.

We are left with B (carbon dioxide) and C (water). Water isn’t really considered a major contributor to climate change. Carbon dioxide is a greenhouse gas that traps heat in the atmosphere, causing climate change.

Therefore, the best answer choice is B. Carbon dioxide

In the image below, what atom is shown in white? URGENT!!!!

Answers

Answer:

Pick Hydrogen, but read below.

Explanation:

The blacks are Carbon. They have 4 connections. The left Carbon has 3 whites connected to it. It is not totally an exclusive answer, but the whites could be anything in Column 17 (F, Cl, Br, I) or Hydrogen. Likely it is hydrogen.

The answer is Hydrogen

please help me!! will give crown!

Answers

Answer:

2

Explanation:

2

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What is the answer?... You are a drop of water going through the water cycle. Where do you go? How do you get there? What processes do you go through? Include at least three phases of the water cycle . I do know what the phases of the water cycle,so i don't need the phases of the water cycle. I just need a righting Which ethnic group in Indonesia is discriminated against the most? According to erikson's eight stages of psychosocial development, between the ages of 12 and 18 people go through _______ as they try to discover who they are. a. an identity crisis b. the stages of grief c. a midlife crisis d. multiple personality tests 7th grade help me please :)) I need help with an equation for this problem Express into partial fractions 3x - 5x - 3x - 40/( x + 4)(x - 3) A person who holds him- or herself out as a specialist or knowledgeable in a certain type of business is one type ofO negotiatorO offereeO merchantbuyer help please i give brainliest Draw a line from each equation to the property of equality it illustrates.(6 + 3) - 3 = 9 - 3 Addition Property of Equality(6 + 3) 3 = 9 3 Division Property of Equality(6 + 3) + 3 = 9 + 3 Multiplication Property of Equality(6 + 3) 3 = 9 3 Subtraction Property of Equality If m= 6 what is..36 - 6m Pizza Hut charges $10 per large pizza plus a $4 delivery fee. If you spent a total of $34, how many pizzas did you order I GIVE BRAINLY PLEASE HELP!!!So I have to do a report for english and this is what I came up with what do you guys think how would you grade me?EnglishBy: AngieCharacters Different Points of ViewMaze RunnerGallyIntroductionThe way you see a character all depends on the point of view you read from. In this report you will see how I view Gally from the maze runner, compared to how others see him.A true antagonist?Everyone sees Gally as an antagonist but a quote that I read made by Gally had me thinking past what was right in front of me. The quote was The rules are the only thing that have ever held us together, why now are we questioning that? so I did some research and according to the books and the movies, Gally has been in the glade for three years before Thomas arrived. I read all the books and watched all the movies over and over again and the word that kept popping into my head was the word Fear. I kept thinking and doing my research and came up with a question. Is Gally a true antagonist? My answer is no, and Im willing to bet that you are going to agree with me after you finish reading this.Theory and EvidenceGally is looked upon as an antagonist, but during my studies and research I have reason to believe otherwise. Others read the books or the movies and see a stuck up hard headed bully, But once you dig deeper other things come to light. According to both the movies and the books, Gally has been in the maze for three years before Thomas arrived. During those three years, he has likely seen death multiple times. In fact during my research, I have come to find that a total of 30 gladers have died in the maze runner. As seen in one of the scenes in the movies where he is standing in front of a wall of stone, In the stone was etched in all of the names of the gladers, and in the same scene Gally is shown to be crossing out one of the names, the name in question was Albys, after the leader of the glade (Alby) died, Gally went to the deadheads where the stone wall with all the names of the gladers is. Because Galy was the keeper of the Builders the task of crossing out the names on the stone fell upon him. So I assume that in the three years that Gally has been in the Glade, he was the one crossing out the names of the dead. That includes both friends and coworkers. A job like this is likely to take a toll on the person doing it. For three years gally, has seen people break rules, get exiled, and die, and all the while as he saw it all he took a lesson to the heart. Dont break the rules. The one time he did break the rules he ran into the maze and ended up stung by a griever and had to go through the changing. And ever since he has followed the rules to a T, and takes his job very seriously so when Thomas comes along and begins Breaking all the rules without consequences, he begins to fear the repercussions. And finally when the griever begin attacking, it was like all his worst fears were coming true. So in the end his behavior was the effect of three years of living in fear. How many grams of CO2 are contained in 4.77x10^24 molecules of of CO2? alicia and christine are doctors at a hospital and can each perform two tasks: open-heart surgery and liver transplants. alicia is more efficient than christine at both of these two tasks, but alicia has a lower opportunity cost in performing liver transplants. identify the actions that lead to the hospital seeing more patients. ANYONE? PLS HELP ME.What are some possible reasons to summarize an interviewee's account instead of quoting the person directly? What is a calorie?a fire that burns slowly) a device to measure heata storage tank for energya unit of heat energy Which of the tables represents a function? (5 points)Table AInput Output5 35 24 1Table BInput Output1 23 25 3Table CInput Output0 01 21 3Table DInput Output4 24 34 4 2.1 x 2.1 -0.9 x 0.9a)2.1 -0.9 Calculate the mass of 1.25 mol ammonium sulfide, (NH4)2S. *