Which of the following is always an important part of an experiment?

1.making a working model

2.observing things in nature

3.making drawings of things observed

4.identifying and controlling variables

Answers

Answer 1

The most important part of an experiment would be; identifying and controlling variables.

In order to set up an experiment, you need to test the specimen(s) with and without a curtain variable. That is what makes an experiment a test.

Answer 2

Answer:

identify and controlling variables

Explanation:

lack of awareness of control variables can lead to faulty result or what are called "confounding variables" additionally, noting control variables makes it easier to reproduce and experiment and establish the relationship between the independent and the dependent variable


Related Questions

While Mikey was at the zoo, he classified the animals as he walked by their exhibits. Category 1 is for vertebrates, which are animals with a backbone. Category 2 is for invertebrates, which are animals without a backbone. The table Mikey made is shown below.

Category 1 Category 2
cat snail
mouse jellyfish
dolphin sponge

The last animal that Mikey needs to categorize is a earthworm. Into which category does it belong?
A.
neither category
B.
category 2
C.
both categories
D.
category 1

Answers

Answer:

D. category 1

Explanation:

Im so sorry if im wrong and i hope this helps!

Answer:

it's B

Explanation:

When true-breeding tall plants are crossed with hybrid tall plants,
the offspring are
a. all tall plants
b. all short plants
c. some tall and some short plants
d. not enough information has been given to answer this question

Answers

Answer:

a. all tall plants

Explanation:

The gene that makes the plant tall is dominant

a mimic octopus has lost some of its arms, and is in the process of regeneration. Describe a scenario where this ability would provide the octopus an advantage in its environment.

Answers

Answer:A shark tries to eat an octopus they fight but the octopus ends up victorious. The shark only got away with one tentacle,

But fortunately for the octopus it will grow back.

The ability of the octopus arm to regenerate is an advantage in the case of

interaction with larger predators.

The octopus is a marine organism which is characterized by the eight arms.

It uses these structures to find food for its survival. The octopus are eaten by

larger predators such as shark, whale etc.

During the interaction with these large predators, there is a possibility of its

arms being eaten alone instead of its whole body which provides it with the

advantage of survival and regeneration of arms for subsequent finding of

food.

Read more on https://brainly.com/question/234269

The ability for one substance to dissolve into another is
a) Dissolvability
b) Solubility
c) Solvent
d) Solute

Answers

Answer:

b)solubility

Explanation:

Hope I helped

:D

b) solubility
hope this helps :))

describe the adaptations of animals in the rainforest

Answers

Answer:

Many animals have adapted to the unique conditions of the tropical rainforests. The sloth uses camouflage and moves very slowly to make it difficult for predators to spot. The spider monkey has long, strong limbs to help it to climb through the rainforest trees.

Explanation:

Organisms are classified as carnivores, omnivores, producers, or herbivores. Identify the classification of
the rabbit and the owl based on how they obtain their food. Include a 1 sentence explanation supporting your answer. (i.e. The rabbit/owl is a ____________ because __________________________________________.)



Answers

Answer:

omnivore because they both eat meat and vegetables/ fruits.

Explanation:

An omnivore eats both, so, both animals eat both. Have a great day

What are abiotic factors? List at least 3 in the environment

Answers

Answer:

In biology and ecology, abiotic components or abiotic factors are non-living chemical and physical parts of the environment that affect living organisms and the functioning of ecosystems. Abiotic factors and the phenomena associated with them underpin all biology.

Five common abiotic factors in the enviroment are atmosphere, chemical elements, sunlight/temperature, wind and water.

hope it helps : D PLEASE MARK ME BRAINLIEST

Explanation:

which body system is responsible for transporting blood to other parts of your body?

Answers

Answer:

The circulatory system is responsible for transporting blood with oxygen (O2) from the lungs to cells and then transporting blood with carbon dioxide (CO2) back to the lungs. It also has to distribute nutrients from the digestive system to the cells in the body and remove waste products to be excreted.

HOPE IT HELPS :D PLEASE MARK ME BRAINLIEST =)

Explanation:

What do you think the pH of water is?

Answers

The pH of pure water is considered to be neutral so it has a pH of 7. However, if you have water that falls below this range, the solutions or substances are considered to be be more acidic than than normal water. On the other hand, if you have water above 7, it is considered alkaline or basic.

In the process of distillation, during condesation the temperature of water decreases Hence absorption of CO2 takes place and some H2CO3 is formed. This is an acid (though very weakly) so water turns acidic. Double distillation enhance this so theoritical pH is 7.0 but practically less than 7.0 (6.2 to 6.8)

8. Identify one function of the decomposers in this food web $3.
SOMEONE PLZ HELP ILL GIVE BRAINLIEST PLZ HELP

Answers

Answer:

the decomposers do what their name says... they decompose

Explanation:

they decompose the dead animals and plants and turn them into nutrients that helps the plants grow

Give one advantage of using a satellite tracking system to track whales.

Answers

Answer:

Satellite tagging has the advantage that it provides an animal's-eye view of the whales' movements. Combining these tracks with environmental data also helps to explain why particular areas are so important to the whales.

Explanation:

Answer:

Satellite tagging has the advantage that it provides an animal's-eye view of the whales' movements. Combining these tracks with environmental data also helps to explain why particular areas are so important to the whales.

The rectal thermometer is the BEST instrument to use when

Answers

Answer:

Taking the animals temperature

Explanation:

Rectal temperatures are more accurate so they might also be used in someone who has severe hypo- or hyperthermia to obtain a more accurate core temperature. ... If someone has a heart condition, inserting a rectal thermometer can stimulate the vagus nerve and cause heart arrythmias (irregular heart beats).

Have a great day

What did Joseph Lister discover ?

Answers

Answer:

listerine

Explanation:

lister listerine had to name it after himself.

carbolic acid - this is what google says

an example of a density dependent limiting factor is...

A) an avalanche

B) The amount of available food

C) a sudden flood

D) a decrease in water due to drought.

(please don't guess)

Answers

An example of a density-dependent limiting factor is the amount of available food. Thus, the correct option for this question is B.

What is a density-dependent factor?

Density-dependent factors may be defined as those factors that may significantly vary with the density of the population. These factors may affect a higher proportion of individuals when population densities are higher and a lower proportion when the population is lower.

Examples of these factors may effectively include food, competition, predation, parasitism, accumulation of toxic wastes, etc. While options like a sudden flood, a decrease in water due to drought, etc. may include examples of density-independent factors.

Therefore, an example of a density-dependent limiting factor is the amount of available food. Thus, the correct option for this question is B.

To learn more about Density-dependent factors, refer to the link:

https://brainly.com/question/15649557

#SPJ1

How can organisms become endangered or extinct due to human activities?

Answers

Answer:

they shoot and kill and also we use hurtful acid and are killing them

We killed dem lololololololololololl

Purpose to create gemetes

Answers

Answer:

Gametes are cells used during sexual reproduction to produce a new individual organism or zygote.

Explanation:

This is helpful if male ejaculation is not possible, or insufficient.

How is cotton candy made ?

Answers

Answer:

When you pour sugar into the center of a cotton candy machine, the coils inside heat the sugar to its melting point and break the bonds of the constituent molecules. The hydrogen and oxygen atoms rearrange to form water molecules and promptly evaporate, leaving only carbon behind. the candy is made by heating.

if this helped pls mark as brainliest

Answer:

Cotton candy is a spun sugar confection that resembles cotton. It usually contains small amounts of flavoring or food coloring. The candy is made by heating and liquefying sugar, spinning it centrifugally through minute holes—by which the sugar rapidly cools and re-solidifies into fine strands.

Explanation:

what is the formula for Glucose

Answers

Answer: Glucose also called dextrose one of a group of carbohydrates know as simple sugars.

Answer:

Explanation:

C₆H₁₂O₆

?

What do food chains demonstrate? What do they tell us about energy?

Answers

Answer:

Explanation:

They demonstrate the flow of energy from one thing to the next. They tell us Energy is a non-stop force.

Answer:

Food chains demonstrate that energy is ever-lasting. It is always transferred from organism to organism, and the cycle just goes on. Everytime an animal eats another, it absorbs that organisms energy and so on.

Explanation:

ok boomer

Explain the significance of the increased cell specialization of the volvocine line

Answers

Answer:

Well, I cannot see your list of suggestions but I am assuming one of them would be muscles.

Muscles use a lot of energy and require a large number of mitochondria.

Explanation:

Give example of SUTAINABLE USE and UNSUSTAINABLE USE of ANY 4 OF THE FOLLOWINGS: Water, Waste, Food, Paper, Energy, Plastic

Help would be really appreciated! Best answer will be marked as brainliest(so try your best)!

Answers

water -
sustainable use is: water systems in the realm of sustainable development may not literally include the use of water, but include systems where the use of water has traditionally been required. Examples include waterless toilets and waterless car washes, whose use helps to alleviate water stress and secure a sustainable water supply
-
unsustainable use is: world's water use may be unsustainable. ... These practices can have an important influence on what scientists call “evapotranspiration,” which is water that is lost to the atmosphere by either evaporating from the Earth's surface or being taken up by plants and later released into the air through their leaves.

food -
sustainable use is: Local & seasonal,
Organic & sustainable farming,
Reduce foods of animal origin & maximise welfare standards,
Excludes fish species identified as at risk,
Fair-trade-certified products,
Promote health and well being,
Food democracy and
Reduction of waste and packaging
-
unsustainable use is: Foods containing high fructose corn syrup (HFCS) are especially bad for the environment. Not only does consumption of HFCS increase the likelihood of obesity and health problems, but production is extremely energy intensive,
Seafood listed in the “avoid” column on the Seafood Watch list and
Factory farmed beef.

plastic -
sustainable use is: Renewable feedstock. Organic materials such as starch and other natural fibers can replace petroleum-based feedstocks, greatly reducing the reliance on carbon-dioxide-emitting fossil fuels,
Reclaimed feedstock,
Recycled feedstock and
Biodegradable materials.
-
unsustainable use is: plastic forks and knives,
plastic shopping bags,
plastic coffee cup lids,
plastic water bottles,
Styrofoam and plastic take out containers,
and, of course, plastic straws.

energy -
sustainable use: renewable energy sources like solar, wind, geothermal, hydropower and ocean energy are sustainable as they are stable and available in plenty.
-
unsustainable use: Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas and
Plants, algae, and plankton grew in these ancient wetlands.

hope this helps :)

do you know why bananas are curved

Answers

Answer:

Because they grow towards the sun

Explanation:

brainliest pls :)

Answer:

They do this because bananas are negatively geo-tropic.

Explanation:

Hi, let me elaborate: This means that they grow away from the pull of gravity because of mass, as opposed to turning upward toward the sun.

HELP ME
Match each description with the appropriate type of thermal energy transfer from
the following list. Place your answer in the blank space given.

i. radiation ii. convection iii. conduction
a. requires direct contact between substances at different temperatures
b. based on currents flowing in fluids

Answers

Answer:         (A) = Conduction

                       (B) = Conduction

Explanation:

The diameter of the large intestine is larger than that of the small intestine, and the large intestine is also longer than the small intestine. True or False.

True.
False.

Answers

Answer:

False

Explanation:

the small intestine is both larger and longer than the big intestine.

Match all of the planets and the asteroid belt with their distance from the Sun.

Answers

Answer:

Mercury,Venus,Earth,Mars,Asteroid belt,Jupiter,Saturn,Uranus,Neptune

Explanation:

Mercury,Venus,Earth,Mars,Asteroid belt,Jupiter,Saturn,Uranus,Neptune

What is one similarity between the lungs and capillaries?

Group of answer choices

They are both activated by inhalation.

They are both involved in gas exchanges.

They are both part of the circulatory system.

They are both regulated by the heart.

Answers

Answer: Its B because Arteries deliver oxygenated blood to the capillaries, where the exchange of oxygen and carbon dioxide takes place.

Answer:

B

Explanation:

Just took the test

where does partly digested food go after it leaves the stomach

A) esophagus
B) Appendix
D) small intestine
C) large intestine​

Answers

The answer is D) Small intestine

hi my sky betteljust

Answers

Answer:

pls mark brainliest pls I need one more

Explanation:

What is the cycle that involves the conversation of nitrogen gas into a usable form by bacteria?
A. Carbon cycle
B. Nitrogen cycle
C. Water cycle
D. None of the above

Answers

Answer: B

Explanation: in took the test

help.. Approximately what percentage of our tropical rain forests have
already been destroyed?
a. 10 percent
b. 20 percent
c. 50 percent
d. 60 percent

Answers

60%

hope this helps :)

(if you wouldn’t mind can you mark me brainliest?)

60% of our tropical rain forests have already been destroyed.

What are the functions of tropical rain forests?

Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm.

Tropical Rain Forests are found in warm and humid areas with annual precipitation of over 200 cm and mean annual temperature above 22 degrees celsius.

Tropical rainforests are forests with tall trees, warm climates, and lots of rain. In some rainforests it rains more than one inch nearly every day of the year.

Learn more about tropical rainforests:

https://brainly.com/question/14835386

#SPJ3

Other Questions
what happens when ethanol is refluxed with acidified sodiumheptaoxodiochromate(4) solution for a long time what are the typical properties of a group 1 metal Are some questions better addressed by religion than science? Explain your answer in a well thought out paragraph. How many bonding electrons are present in PO43- ? PLEASE HEALP FAST!!In this excerpt from Treasure Island by Robert Louis Stevenson, which sentence helps develop the setting?He was a very silent man by custom. All day he hung round the cove or upon the cliffs with a brass telescope; all evening he sat in a corner of the parlour next the fire and drank rum and water very strong. Mostly he would not speak when spoken to, only look up sudden and fierce and blow through his nose like a fog-horn; and we and the people who came about our house soon learned to let him be. Every day when he came back from his stroll he would ask if any seafaring men had gone by along the road. At first we thought it was the want of company of his own kind that made him ask this question, but at last we began to see he was desirous to avoid them. When a seaman did put up at the Admiral Benbow (as now and then some did, making by the coast road for Bristol) he would look in at him through the curtained door before he entered the parlour; and he was always sure to be as silent as a mouse when any such was present. For me, at least, there was no secret about the matter, for I was, in a way, a sharer in his alarms.He had taken me aside one day and promised me a silver fourpenny on the first of every month if I would only keep my weather-eye open for a seafaring man with one leg and let him know the moment he appeared. Often enough when the first of the month came round and I applied to him for my wage, he would only blow through his nose at me and stare me down, but before the week was out he was sure to think better of it, bring me my four-penny piece, and repeat his orders to look out for the seafaring man with one leg. Which of the following is true, based on Mr. Minow's speech?He believes that television has the potential to be destructive.2He is satisfied with the content of television broadcasting.c3The importance of television is slowly decreasing.4The television industry has a responsibility that print media do not have. Can someone help please How did the South reverse much of the Civil Rights Act of 1866? (5 points)Group of answer choicesBy electing African AmericansBy electing a Southern presidentBy passing Black CodesBy passing blue laws Consider the enlargement of the triangle. A smaller triangle with side lengths 9 millimeters and 6 millimeters. A larger triangle with side lengths x millimeters and 16 millimeters. Which proportional statements are true for finding the value of x? Check all that apply. StartFraction 6 over x EndFraction = StartFraction 9 over 16 EndFraction StartFraction 6 over 16 EndFraction = StartFraction 9 over x EndFraction StartFraction 9 over 6 EndFraction = StartFraction x over 16 EndFraction StartFraction 9 over x EndFraction = StartFraction 16 over 6 EndFraction StartFraction 9 over x EndFraction = StartFraction 6 over 16 EndFraction a cup is filled with 80 mL of water. every second, 3ml are poured out. after how long will there be 45 ml left? Layer F is an igneous extrusion. How could a geologist use layer F to infer the age of layer A? wany words does that message have?The three coordinate of the angles of a rectangle are (0,0), (4,0) and(0,3).find the coordinates of the fourth angle. The dimensions of a CD case are 14.2cm by 12.5cm. Each case is approxiomately 1cm deep. What would be the volume of this stack of 17 cd cases to the nearest tenth? Point A is at (-6, 8) and point B is at (6, -7). What is the midpoint of line segment AB? When registering to vote, a voter must show identification. Which of the following forms of identification is NOT used to provide proof of citizenship?A.a passportB.a state identification cardC.a club membership cardD.a drivers license ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing. PLEASE SEE THE ATTACHES FILE SOMEWHERE AROUND THIS MESSAGE! I REALLY NEED HELP! PLEASE WANT BRAINLIEST PLEASE ANSWER!!!!!!!!!!!11Although it was not suited to solving his immediate problem, Silver felt the unusual adhesive might have some commercial value, and so he demonstrated it to various colleagues, including Fry. At the time, no one had come up with a use for it, and so the formula for the weak adhesive was filed away until the Monday morning when Fry came to work with the idea of making sticky bookmarks that could also be removed without damaging the book. The Evolution of Useful Things,Henry PetroskiWhich pair of phrases signals the passage of time?A- Although it was not suited . . . Silver felt. . . . B- Silver felt . . . and so he demonstrated it. . . .C- At the time . . . until the Monday morning. . . .D- ... until the Monday morning . . . that could also be. . . . What is the coordinate of the point (6,8) The function f(x) = 3(1.7)x gives the length (in inches) of an image after being enlarged by 10% x times. What is the length of the image after it has been enlarged 4 times? Round your answer to the nearest hundredth.