Step 1- Investigative Question
What will happen if I submerge a raw egg in vinegar for 24 hours? (Will it
bounce if I drop it or will it crack?)
Explain - Is this question testable or no? Tell me why.
What are the variables in this question?
The variables in this question are apple
The independent variable is
The dependent variable is
Answers
Answer:
Eggshells are made of calcium carbonate. If you soak an egg in vinegar the eggshell will absorb the acid and break down, or dissolve. The calcium carbonate will become carbon dioxide gas, which will go into the air.
Explanation:
It will bounce.
I believe that it is testable because you can do it at home.
Independent variable is vinegar.
Related Questions
Scientists believe lichen is the common ancestor for all plants.
Answers
Explanation:
Scientists believe it’s Ancient green algae that is the common ancestor for all plants
Hope this helps:)
Which property of matter is conserved in chemical reactions and shown by balanced equations?
mass
ООО
volume
density
shape
Answers
Answer:
The correct answer is - Mass.
Explanation:
A chemical equation represents the change in the complete composition during the chemical reaction. The reactants and the mass of the products remain constant in the balanced equation which means there is no loss of mass take place in a chemical reaction.
Chemical reactions follow the law of conservation of mass which means like energy mass can not be destroyed or created and represent by the balanced chemical equation.
Answer:
a mass
Explanation:
Both heterotrophs and autotrophs do not need metabolic processes to
convert energy into forms that they can use to carry on life processes.
True O False
25 points
Answers
You take a job selling diet marshmallows at a company where the average employee earns $70,000 a year. Later you discover the company has a president and 30 salespeople, but each sales person eats $20,000 a year. How can the "average" be so high?
Answers
To find the average they also take into account the salary of the president, who probably makes a lot more than $20,000.
Plzz help!!!
Some scientists are modifying the genetic code of certain fish by inserting genes that cause the fish to produce more growth hormone, which causes the fish to grow more quickly. Salmon is one type of fish on which scientists are working. Which answer choice shows the most significant negative impact to society that could result from producing genetically modified salmon?
Salmon cells could become less responsive to the hormone over time, slowing the growth rate of the fish.
Salmon could be reintroduced into the ecosystem where they could breed with, and alter, populations of wild salmon.
The genetically modified salmon will be very expensive to raise, so the fish will be too expensive for people to buy.
The modified, farmed fish would be more difficult for predators to hunt than wild salmon if reintroduced into the ecosystem.
Answers
Answer:
breeding with and altering the population of wild salmon
the extra growth hormone could change the wild salmons reproductive fitness, could slow them down or make them less fertile or more fragile so they aren't able to spawn etc and reduce the wild population of salmon which would have large effects
there is a rainforest in BC that's survival relies on the nutrients that salmon bring when they spawn and die
It could also be scare mongering and have no negative effect, could be a net positive??
Explanation:
which piece of equipment will be the best for measuring
75 mL of liquid?
Answers
PLS HELP WILL GIVE BRAINLIEST AND 50 POINTS!!!
The runoff from fertilizer has increased the phosphate levels in a nearby body of water. What effect does this increase in phosphate have on the body of water?
Increases oxygen levels
Colic
Fatigue
Increases algae growth
Answers
The effect that an increase in phosphate has on the body of water is increased oxygen levels. The correct option is A.
What are fertilizers?Fertilizers are compounds used to give plants the most nourishment possible for growth and development. They can also be administered directly to plants.
These chemical fertilizers include potassium as salt, phosphorus as phosphates, and nitrogen as nitrates. These chemical fertilizers pollute water bodies by entering through runoff when they are applied to soil or plants during rain.
Nitrates and phosphates enter water bodies as a result, leading to eutrophication. Algal overgrowth brought on by eutrophication results in low oxygen levels in bodies of water.
Therefore, the correct option is A. Increases oxygen levels.
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Answer:
Increases algae growth
Explanation:
An increase in phosphate levels in a body of water due to fertilizer runoff would likely lead to an increase in algae growth.
2. Which is the correct structural organization of a plant?
A. Atom-Cell Tissue- Organ- Organ System Molecule-Cell
B. Cell Tissue- Organ Organ System
C. Atom Molecule Cell Tissue- Organ— Organ System- Organism
D. Atom Molecule- Cell Organ - Tissue Organ System Organism
Answers
Which number label represents the cell membrane?
1
2
4
6
Answers
The absorption process in the kidneys depends on the ___ between the medulla and the filtrate.
Answers
Answer:
try b and tell me if i am wrong please
Explanation:
The absorption process in the kidneys depends on the between the medulla and the filtrate in the cortex as the cortex is found in between the medulla and filtrate.
The cortex presents an area for arterioles and venules from the renal artery and vein, in addition to the glomerular capillaries, to perfuse the nephrons of the kidney. Erythropoietin, a hormone important for the synthesis of the latest crimson blood cells, is likewise produced withinside the renal cortex. Its predominant feature is to reabsorb water and sodium chloride from the filtrate.
What is the function of coetex ?This conserves water for the organism, generating exceedingly focused urine: The inner-maximum location of the kidney is organized into pyramid-like structures, that include the majority of the nephron structure. renal cortex: The outer location of the kidney, among the renal tablet and the renal medulla, includes an area that consists of blood vessels that hook up with the nephrons.
Thus it is clear that the absorption process in the kidneys depends on the cortex that is in between the medulla and the filtrate.
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Which is an accurate genotype for free earlobe (dominant)?
A.
EE or ee
B.
ee
C.
Ee
D.
Ee or EE
E.
EE
Answers
Answer:
option D is correct.
Ee or EE
Explanation:
because free ear lob is a dominant trait. so when E is present the ear lobe will free.
Which of the following fur colors are possible in females? Choose all that apply:
Black
Black and White
Black, Orange, and White
Orange
Orange and White
Answers
Answer:
It is all of them and I have PROOF
Explanation:
HERE IT IS YOU CHEETERS, isn't brainly the best?
In cats, the X-linked genes determine the fur color. The alleles for the fur color are present on the same locus but can have a different version, such as a cat can produce orange or black fur color.
The combinations of fur possible are:
Black
Black and White
Black, Orange, and White
Orange
Orange and White
The X-linked gene is responsible for the color or tortoiseshell of the cats.
The black color in the cats is caused due to the pheomelanin and the black color is caused due to eumelanin. The condition arises because of the inactivation of the X-chromosome.
For instance, the heterozygous patches of orange and black tortoiseshell result in the expression of different alleles coding for different fur colors.
Thus, in the female cats, the genotype is two X-chromosomes, which can result in all the possible tortoiseshells.
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PLEASE HELP IT IS FOR PSYCHOLOGY!!
How does the brain determine who we are? To what extent should individuals be held accountable for their actions when the individual is known to suffer from neurological disorder?
Answers
Answer:
i think it bc it cennected to ower bodys and know ower body langues so i thin this how ower brain know who we are
Explanation:
ADD NOTE QUESTION GUIDE
Scientists around the world use a standardized taxonomic
system. Why would scientists want to use a taxonomic system that is standardized?
A
In order to place organisms in different groups
B
In order to avoid confusion with the identification
of organisms
C
So that Latin names can be applied for a practical
purpose
D
Because Linnaeus established the system
Answers
Answer:
In order to avoid confusion with the identification of organisms
Explanation:
Drag and drop the terms at the left to match the appropriate descriptions at the right. ResetHelp Composed of phospholipid bilayer: . Involved in mitosis: . Site for protein synthesis: . Stores calcium ions in muscle cells: . Copy of a chromosome: . Vesicles with powerful digestive enzymes: . Intracellular fluid and organelles: . Folds of the inner mitochondrial membrane: . Intracellular fluid: . Short, hairlike cellular extensions: .
Answers
Answer: The appropriate description is matched against the components of the cell below.
1) Cilia: Short, hairlike cellular extensions
2) Ribosome: Site for protein synthesis
3) Chromatid: Copy of a chromosome
4) Cristae: Folds of the inner mitochondrial membrane
5) Lysosomes: Vesicles with powerful digestive enzymes.
6) Smooth ER: Stores calcium ions in muscle cells
7) Plasma membrane: Composed of phospholipid bilayer
8) Cytosol: Intracellular fluid
9) Cytoplasm: Intracellular fluid and organelles
10) Centriole: Involved in mitosis.
Explanation:
A cell is simply defined as the structural and functional unit of an organism. It is made up of highly organized physical structures called intracellular organelles. These organelles includes:
• Ribosome
• Lysosomes
• Smooth Endoplasmic reticulum
• Plasma membrane
A type of cellular motion called ciliary movement, is a whip-like movement of CILIA on the surface of cells takes place in the respiratory airways of human.
The cytoplasm is filled with both intracellular fluid and organelles while the cytosol contains mainly dissolved proteins, electrolyte and glucose ( intracellular fluid).
____ detect stimuli and transform them into nerve impulses.
A. Motor neurons
B. Synpases
C. Sensory receptors
D. Axon terminals
E. Sensory neurons
Answers
The answer is Sensory Receptors
What are three tasks that DNA must be able to perform in all organisms? Select three answer choices.
A. It must store genetic information.
B. It must discard foreign genes.
C. It must instruct cells to produce needed molecules.
D. It must copy itself.
E. It must move to locations throughout the cell.
Answers
Answer:
A,C,and e i think sorry if i'm wrong
Do we follow the natural order? We as humans, do follow Mother Nature rules?
Answers
Hello what happens when you are. Buried wouldn’t it be bad if you were still alive and you wake up in a grave and it is pitched black?
Answers
Answer:
I mean yeah then you would just have to lay there and just slowly starve to death because your buried and the weight of the dirt or sand or whatever you got buried in would be to heavy
In order for a recessive trait to show up, what genotype does the organism need to have?
A.
EE
B.
Ee
C.
ee
Answers
Explanation: For a recessive trait to show up, there cannot be a dominant trait in the genotype or else the dominant trait will appear. This means that the only way for a recessive trait to show up is for the genotype to be “ee”
In order for a recessive trait to show up, the organism needs to have an "ee" genotype Option C is correct. This is further explained below.
What is Genotype?Generally, The word "genotype" is simply defined as an organism's genetic composition in a general manner of speaking.
In conclusion, The recessive trait is a type of trait that is very strong and shows up more often than not.
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what are two ways in which white blood cells fight pathogens that have entered the body?
A)They produce Antibodies that work against the pathogens
B)They produce hormones to locate the pathogens
C)They surround and destroy the pathogens
D)They make digestive acids to destroy the pathogens
Answers
Answer:
A and C
Explanation:
I'm pretty sure that's the right answers. Hope this helps! <3
The two ways in which white blood cells fight pathogens that have entered the body are "they produce antibodies that work against the pathogens and they surround and destroy the pathogens".
What are pathogens?Any organism as well as an agent that could cause the disease would be a pathogen in the widest and oldest sense.
What are antibodies?Whenever the immune system of the body recognizes dangerous compounds, known as antibodies, it produces a protein designated an antibody.
Therefore, the two ways in which white blood cells fight pathogens that have entered the body are "they produce antibodies that work against the pathogens and they surround and destroy the pathogens".
Hence, the correct answer will be options (A) and (C).
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(ILL GIVE YOU BRAINLIEST HELP ASAP PLS, I GOT A COUPLE QUESTIONS ON MY PAGE)
Henry was recently hired as the head of social media marketing for a small podcast company. What will this role likely entail?
A.
handling payroll and other human resource management responsibilities
B.
evaluating and assessing employee performance
C.
providing personal financial support for all company endeavors
D.
gathering needs of customers and fulfilling those needs largely with the use of online media outlets
Answers
C.
Explanation:
I was first thinking A but that really sounds like a bosses job. normally, head of a company means CEO, if im not mistaken. The CEO handles the financial part. Please correct me if I'm wrong
How fast the continents move?
Answers
Answer: A
Explanation:
Answer:
3-4 inches per day
Explanation:
How does a loess affect the environment around it?
Answers
Answer:
Because loess is deposited from the atmosphere it provides an important geologic archive of past atmospheric circulation that can be used to test atmospheric circulation models
Explanation:
Answer:
Loess often collects in river headwaters, and subsequently gets carried to riverbeds. The buildup can be so dense, that it diverts the water over the adjacent flood plain. This may result in the flooding of rivers.
Explanation:
In a cell, the fluid within the cell membrane is called
And the fluid Outside the cell membrane is called:
cytoplasm; interstitial fluid
interstitial fluid: cytoplasm
interstitial fluid: tissue fluid
tissue fluid: interstitial fluid
Answers
the fluid outside the cell membrane is called what? —-> tissue fluid
im not toooooo sure about the second one buttt i tired lil
In a cell, the fluid within the cell membrane is called cytoplasm, and the fluid Outside the cell membrane is called interstitial fluid. The correct option is A.
What is cytoplasm?The gelatinous solvent that fills the inside of a cell is known as cytoplasm. It is made up of water, salts, and organic molecules.
Certain intracellular organelles, including the nucleus as well as the mitochondria, are separated from the cytoplasm by membranes.
The cytoplasm of a cell performs all functions related to cell expansion, growth, and replication.
Interstitial fluid can be found in the spaces between cells. It is caused by substances leaking from blood capillaries.
It aids in the delivery of oxygen and nutrients to cells as well as the removal of waste products.
Glucose, salt, fatty acids, and minerals such as calcium, magnesium, and potassium are all found in interstitial fluid.
Interstitial fluid contains nutrients from blood capillaries. It can also contain waste products from metabolism.
Thus, the correct option is A.
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56. Students in an eighth grade science class are investigating different cells under a microscope,
as shown by the three microscope drawings below.
What part of the cell theory is best illustrated by these three slides?
O All organisms are composed of cells.
All organisms are composed of a single cell.
O All organisms are composed of more than one cell.
O All organisms come from pre-existing cells that divide.
Answers
All organisms come from pre-existing cells that divide.
What is Microscope?Microscope: a device that magnifies small objects, giving the user a close-up view of minuscule structures at a scale suitable for observation and analysis.
Even though optical microscopes are the focus of this article, an image can also be magnified by a variety of different wave types, such as acoustic, X-ray, or electron beams, and is then captured using direct or digital imaging, or a combination of these techniques.
The magnifying power of a microscope is a dimensionless ratio that expresses how often the thing under examination seems to be magnified.
Therefore, All organisms come from pre-existing cells that divide.
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is 8 1/5 greater than 2 1/10
Answers
Answer:
8 1/5 > 2 1/10 = True
Explanation:
Answer:
No
Explanation:
8 1/5 is equal to 41/5 which is equal 20.5/10 while
2 1/10 equals 21/10
Giving everything!!!!!!!!! Plzzzz help!!!!!!!!!!! ASAP!!
The immune system has two modalities, specific and nonspecific responses. Which of the following is an example of a nonspecific response?
A. an antigen binding to an antibody
B. inflammation at the site of an infection
C. a cytotoxic T cell attacking a pathogenic agent
D. lymphocytes activating plasma cells in the blood
Answers
B. Inflammation at the site of an infection is an example of a nonspecific response of the immune system.
What is non-specific immune response?Non-specific immune responses, also known as innate immunity, are the first line of defense against invading pathogens and are activated immediately upon exposure to a foreign invader. These responses are not specific to a particular pathogen and do not require previous exposure or recognition. Instead, they provide a general response that helps to prevent the spread of the pathogen and contains it until the specific adaptive immune response can be activated.
Examples of non-specific immune responses include physical barriers such as skin and mucous membranes, as well as physiological responses such as inflammation, fever, and the activity of phagocytic cells like macrophages, which engulf and destroy pathogens. Non-specific immune responses also include natural killer cells, which are able to recognize and kill infected cells, and the complement system, a group of proteins that help to enhance the ability of other components of the immune system to destroy pathogens.
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All chemical reactions
A. Involve the creation of new atoms.
B. involves a change in chemical bonds.
C. are dangerous.
D. create energy
Answers
Answer:
c
Explanation:
of the following factors that impact biodiversity, which one would be considered a micro-effect
Answers
Answer: A stand of aspen trees dies and decays, leaving a clearing in the forest.
Explanation:
:)
Answer:
B) A stand of aspen trees dies and decays leaving a clearing in the forest
Explanation: