What are some variables that can change in an experiment?

Answers

Answer 1

Answer:

independent and dependent variable

Explanation:

many factors can effect the out come of your independent and dependent variables.


Related Questions

What does Rob mean when he says some tropical lakes do not "cycle

Answers

Answer:

He means that the surface doesn't mix with the deeper colder water and the water remains anoxic.

Explanation:

The statement that says that tropical lakes don't mix means that the surface layer of water does not mix with the deeper colder layer. This means that it remains anoxic.

What are tropical lakes?

Tropical lakes have the following major classes. These are

shallow, lowland lakes; deep, tertiary lakes; high altitudinal lakes; rainforests lakes; man-made lakes

These are present at all latitudes and altitudes. Basic ecological processes like grazing, competition, predation and abiotic adaptation are simple in temperate and tropical lakes.

The tropical lakes of small size and intermediate age are not biotically more complicated than temperate lakes of similar size.

Fish have a key role to play in the tropic regions because many species because they consume zooplankton and also compete with them for food. This is an important co-evolution process between the fish and the algae which leaves a part of the algal community with a refuge for predation, and the zooplankton will have a decreased ability to exploit algae.

Therefore, the statement that says that tropical lakes don't mix means that the surface layer of water does not mix with the deeper colder layer. This means that it remains anoxic.

Read more about tropic lakes, here

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because the amazon pink dolphin is in danger of extintion
it is urgent

Answers

Answer:

yes it is in high risk of extinction

Explanation:

yes it is in high risk of extinction


A species of lizards migrates to a group of islands in the ocean. Over time, they diversified and evolved into several different species. Each species has a unique jaw shape that allows it to eat its own specific diet. This is an example of

gradualism because one species evolved into several different species over a relatively short amount of time
adaptive radiation because one species evolved into several different forms that occupy different niches
coevolution because the evolving lizard species changed in order to interact with the changing environment
convergent evolution because one species evolved into multiple species that live alongside each other

Answers

Answer:

adaptive radiation because one species evolved into several different forms that occupy different niches

No, because its genes are still the same. To evolve would mean that the frog had one set of genes as a tadpole, then a different set as an adult. It just doesn't work that way. The genes are the same.

When there is a cut in the skin and bacteria enter the body, the immune system responds. First, macrophages approach the area of the cut. Next, the macrophages surround any bacterial cells and engulf them. What feature of the immune system is best described by this scenario? A. the inflammatory barrier, which is a part of innate immunity B. the phagocytotic barrier, which is a part of innate immunity C. antigen specificity, which is a part of adaptive immunity D. self-recognition, which is a part of adaptive immunity

Answers

Answer: B. the phagocytotic barrier, which is a part of innate immunity

Explanation:

Answer:

the phagocytotic barrier, which is a part of innate immunity

In which condition is relative velocity known by adding the velocity of the first body and that of second body?

Answers

Answer:

When the two bodies are moving in opposite direction

Explanation:

The relative velocity of two bodies is found by adding the velocity of one body to the other body when the two bodies are moving in opposite direction

For example, if one body is moving towards the right direction at 5.0 km/hr and the other body is moving left at 1.0 km/hr, the relative velocity of the body   moving right relative to the other moving left is given as 5.0 + 1.0 = 6.0 km/hr.

Relative velocity can be experienced when moving up along on an escalator relative to the visible side drive mechanism going down.

Describe the three stages of urine production. Be sure to include how each stage relates to the structure of the nephron and why the composition of urine reveals information regarding the health of the body.

Answers

Answer:

Urine is considered to be a true reflection of bodily health because it releases metabolites not necessary for our body.

In some situations, other solutes or secretions are eliminated since they are increasing or are a sign of pathologies.

Clear examples of these situations are: increased protein in urine, presence of hematocrit in urine, presence of glucose in urine, etc.

The three phases of urine formation are: glomerular filtration, reabsorption, and secretion.

Explanation:

The glomerulus and the nephron are responsible for the formation of urine.

Faced with certain pathologies such as diabetes, leukemias, urogenital infections, ketoacidosis, hypercapnia, increased ketone bodies, hyperproteinemias, etc., it is urine that reflects this state of imbalance in the body.

The glomerulus is a filter that is in charge of filtering in a meticulous way those residues of our organism, it releases the unnecessary residues and the chemical compounds or molecules or even cells in excess.

Glomerular filtration is higher or lower in terms of the volume of the afferent and efferent arteries of the renal glomerulus, and the pressures these vessels have within them.

This is how it correlates with the renin-angiotensin-aldosterone system, blood pressure, lungs, nutritional levels, and the overall health of the body.

The complexity of life, combined with our limited knowledge:
O is overcome by the science of taxonomy
O is circumvented by objective analysis
O sometimes prevents conclusive classification
O always prevents classification

Answers

Answer:

The complexity of life, combined with our limited knowledge sometimes prevents conclusive classification.

Explanation:

Hope this helped c;

ANSWER ASAP PLEASEEEEEE!!!!!! ILL GIVE 100 POINTS!!

Answers

Answer:

its a becoz it is the characteristic of asexual reproduction to form daughter cell genetically identical to parent cell and to each other

Explanation:

Answer:

its a.

I also had it right

Explanation:

How do we use the scientific method in our daily lives? Give an example to support your answer. :)

Answers

sembrar una planta ejemplo con la cascara de huevo ya que tiene sus propiedades espero te haya ayudado :)

When did Isaac Newton start learning facts about Force and Motion?

Answers

Answer:

He developed the theories of gravitation in 1666, when he was only 23 years old. Some twenty years later, in 1686, he presented his three laws of motion in the "Principia Mathematica Philosophiae Naturalis." The laws are shown above, and the application of these laws to aerodynamics are given on separate slides.

Explanation:

Glycogen, cellulose, and starch are all __________________. A. proteins B. polysaccharides C. nucleic acids D. lipids E. phospholipids
Select all that apply.

Answers

Answer:

It's B I think

Explanation:

Glycogen, cellulose and starch are all polysaccharides made up of monosaccharides bonded by a glycosidic linkage. Therefore, option (B) is  correct.

What are polysaccharides?

The most prevalent kind of carbohydrates in food are polysaccharides, often known as polycarbohydrates. They are long-chain polymeric carbohydrates made up of glycosidic connections that connect monosaccharide units. Using amylase enzymes as a catalyst, this carbohydrate may combine with water to create its component sugars.

The polysaccharides starch, cellulose, and glycogen are a few examples of. Polysaccharides are used as stabilisers and dietary fibre in the food industry. Polysaccharides may also be produced by bacteria, for instance while making yoghurt.

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Which concept refers to repeated violent episodes followed by a makeup period when the abuser expresses sorrow and asks for forgiveness?a. Cycle of abuse
b. Post traumatic stress syndrome
c. Quid pro quo
d. De facto violence

Answers

Answer:

I believe the answer is cycle of abuse

what is discontious vartion?​

Answers

Answer: Hi!

Discontinuous variations are differences in a population (for example, a group of pea plants) that can be clearly seen. For example, the peas can be wrinkled or smooth, or can have wide, short seed pods, or long, thin seed pods. These are determined by different alleles.

Hope this helps!

Cats have many different cells in their bodies * Cells come from existing cells The cell is the basic unit of life All living things are made up of cells Cells take in and use energy

Answers

Answer:

By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

evidence that ____ with your prediction supports your hypothesis

Answers

Answer:

Evidence that agrees with your prediction supports your hypothesis.

Explanation:

Hope it will help you :)

Answer:

evidence that agrees with your prediction supports your hypothesis

i hope it helps ❤️

Which kind of reaction is shown below? 2H2O2 → 2H2O + O2 Synthesis reaction Decomposition reaction Single replacement reaction Double replacement reaction

Answers

Answer:

i think its a decomposition reaction

Explanation:

when hydrogen per oxide is decomposed to produce water and oxygen

Answer:

decomposition reaction

Explanation:

you're welcome

Show the energy of Oxidation of two mole pyruvic acid.

Answers

Answer:

Methanesulfinic acid (MSIA) is an important intermediate in the oxidation of dimethyl sulfide (DMS) in the marine boundary layer. The oxidation of MSIA by ozone in the gas phase to form methanesulfonic acid (MSA) was investigated using theoretical calculations in this paper. Three pathways can be found for the reaction of MSIA with ozone. The highest energy barrier is 13.02 kcal mol−1 in the most favorable pathway. By comparing the reaction rate of MSIA + O3 with that of MSIA + OH, it can be concluded that the oxidation of MSIA by O3 to form MSA is of minor significance relative to its oxidation by OH radical in the gas phase. This study can provide some information for the theoretical and experimental studies in the significantly heterogeneous and aqueous-phase oxidation of MSIA by O3.

List the six fundamental elements found in living
organisms in the text area below.

Answers

Answer:

carbon, hydrogen, oxygen, nitrogen, phosphorus,and sulfur

hope this answer correct :)

Which of these problems would be best studied with a survey? a. Should I buy a laptop or desk computer for my home? b. Which brand of hand soap is more effective in killing bacteria? c. Which type of milk do most people buy whole, low fat, or skim? d. Which activity causes a greater increase in heart rate?

Answers

The answer would be C

My leg is on fire: a case study on spinal and peripheral nerve anatomy answer

Answers

Hello. The question above is incomplete. The full question is:

My leg is on fire: a case study on spinal and peripheral nerve anatomy  

Sarah Mitchell is a 68-year-old female who is normally healthy. However, about five days ago she began to feel very fatigued and started to experience a burning and tingling sensation on her right thigh.

You ask to see the area and upon visual inspection you notice 3–4 small, red, swollen areas with vesicles on the posterior aspect of her right thigh. She describes the pain to you, saying "it feels like the back of my leg is on fire and it hurts so bad." She denies being exposed to any excessive heat sources, any changes in her diet, and any changes in the type of body soap, lotion, or laundry detergent she is using. All other physical findings are within normal limits, but her oral temperature is 100.6°F. She complains about being under a lot of stress for the past three months because she has been helping take care of her husband, who is in the end stages of Alzheimer's disease. She has no known drug allergies, is a non-smoker, and attends a water aerobics class twice a week. You suspect she may be suffering from a particular viral infection, so you ask if she had chicken pox as a child. Sarah confirms that she had chicken pox and measles during childhood. Her answer confirms your suspicions that she is likely suffering from shingles (herpes zoster) due to varicella-zoster virus infection.

Define the following terms, used in the case and also in associated questions.

paresthesia

skin vesicle

dorsal

ventral

dormant

Answer:

Paresthesia: Term describing the loss of sensation in some region of the body, usually on the tongue, lips and buccal buccal. This loss of sensation occurs with the application of anesthesia in the desired location. Skin vesicle: Term that refers to the appearance of bubbles in the skin. These bubbles may have different sizes, but they all have a liquid inside them. The skin blister can cause itching, tingling and even a burning sensation. Dorsal: Term that refers to the region of the back in the body. It covers the back muscles and is present in the internal and external skeletons. Ventral: Refers to the front of a body and is related to the entire belly. Dormant: Refers to the lack of sensitivity in a muscle. This term is associated with the sense of something that is asleep and unavailable at the moment.

Why would cells need to move things in and out?

Answers

Answer:

Cells do not generally allow such materials to go in because they are having a cell membrane outside. The cell membrane only allows the materials which are required for the growth of the cell such as water and minerals.

So they can reproduce more cells

What is the total energy change for the following reaction: H2 + I2 -> 2HI?

Answers

I think the answer to the question is +7kj/mol. Hope this helps! :)

Answer:-7kJ/mol

Explanation:

Just got it correct on Founders Ed.

All of the wolfs, the rabbits, the trees and the rocks in one area is an example of

Answers

Answer: Life and circle of life

Explanation: Wolves, rabbits, and trees is an example of life or as we call it "The Circle Of Life". The wolves eat the rabbits in order to live and the rabbits would eat the leaves that fall from the tree. For life, rocks are there to make caves or to digs holes to hide in, to live, survive, and to hide from preditors.

Hope this helps^^

how is observations used by scientist

Answers

Answer:

scientists use observation to collect, and record data, which enables them to construct, and then test hypotheses and theories.

Answer:

yes

Explanation:

In a magazine advertisement, a manufacturer claims its laundry ball, which contains ceramic pellets, gets clothes clean by changing the pH of the water. The ad claims the product reduces wear on clothing, contaminants in the environment, and the cost of doing laundry. What should the advertisement include to give a consumer more confidence in this product's claims

Answers

Answer:

Information about a product testing in a study that includes a control group

Explanation:

Answer:

A

Explanation:

A blue whale is louder than any animal around.
Go in search of a thing that also makes a loud sound.

Answers

The correct answer to this open question is the following.

A blue whale is louder than any animal around.

Go in search of a thing that also makes a loud sound.

Well, talking abound animals sounds, what about the roaring of a lion or a tiger. That is loud too, and scary.

If we do not want to refer to an animal sound, we could talk about the sound of the turbines of an airplane. That is loud. Indeed, floor airport operators have to use earplugs or other kinds of protection to avoid ear damage in the workplace.

The sounds of machines in many industries and factories are also very loud.

10) Jane trimmed 4 inches off her hair before she got a perm. How many millimeters did she trim? Hint:
"1 inch = 25.4 millimeters."

Answers

Jane trimmed 101.6 millimeters

In prokaryotic cells, regulator proteins bind to a section of DNA called a/an
A)chromatin
B)repressor***
C)promoter
D)operon
“*** is my answer”

Answers

Answer:

C) Promoter

Explanation:

Gene expression is the process of synthesizing RNA from a gene (transcription), and subsequently, proteins from mRNA (translation). In both prokaryotic and eukaryotic cells, gene expression is controlled at the transcriptional level, which is regulated by certain proteins called transcription factors. Transcription factors are proteins that regulate the synthesis of a protein from a gene.

Transcription factors regulate the progression of transcriptional process by binding to a regulatory region on the DNA sequence about to be transcribed called PROMOTER. The promoter region is a DNA sequence contained in the OPERON. This binding influences the binding of the transcription enzyme, RNA polymerase in order for transcription to start.

Answer:

I think the best option given the options above would be D) operator.

Which of the following was a common life form during the Cambrian Period? A. trilobite B. bryozoan C. land plant D. cephalopod

Answers

Answer:

Hey there!

Trilobites were common during the Cambrian Period.

Let me know if this helps :)


Amino acids and sugars are both required by animals to maintain their health. Without a diet containing both of these, animals cannot
survive. Amino acids are obtained by animals when they digest .
A) nucleic acids
B) carbohydrates
C) proteins
D) lipids

Answers

Answer:

c

Explanation:

Amino acids are the monomers of protein molecule.Each amino acid molecule is made up of an amine group,caboxylic acid  group,Hydrogen atom and R-group. All are attached to the alpha  carbon.It is the R-side group that differentiate one amino group from another.

These amino acids units are joined together by the peptide bonds to form the giant protein molecules

The arrangement, the number of the amino acids and the orientation of these  amino acids  can be used to classify protein into different primary,secondary, tertiary and Quaternary levels.

Generally protein digestion begins and ends in the stomach and the small intestine. by enzymes pepesin and renin, and the activities of enzymes of the pancreas  chymotrypsin and trypsin,respectively.

The cells in the wall of the small intestine finally breakdown the digesting protein into amino acids by the activities of the enzymes there.

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