DUE SOON PLZ HELPP!!!!!!!!
Which of the following is an example of a step in an EXPERIMENTAL scientific investigation?


A. Recording the sound of a test tube breaking

B. Placing test tubes in a water bath

C. Nothing a color change in a test tube

Answers

Answer 1
the correct answer is A. Recording the sounds of a test tube breaking

Related Questions

make a list of all addie's symtoms​

Answers

Addie Rerecich was only 11 years old when she was hospitalized with MRSA, an infection her doctor said she likely caught by picking at a scab — like so many kids do. While in the hospital, she contracted an untreatable form of the bacteria stenotrophomonas that nearly took her life. just give the girl above me brailyest

Storing stem cells is not regulated by the U.S government the way that a drug or a surgical procedure is because it is a service that will be helpful for treatments not yet invented. Do you think such banks should be regulated, and if so, by whom and how?

Answers

Answer:

IT'S HELPFUL FOR YOU

PLEASE Mark BRAINLIST

who discovered haley's comet? when and how?​

Answers

Answer:

Edmond Halley discovered Haley's comet and it was discovered in 1758 he discovered it by examining reports of a comet approaching earth in 1531.

Why are bacteria needed in the nitrogen cycle?

Other living things cannot use atmospheric nitrogen.
Other living things cannot use the nitrogen in plants.
Bacteria are the main nitrogen reservoir.
Bacteria are the main nitrogen transporters.

Answers

Answer:

Other living things cannot use atmospheric nitrogen

Bacteria helps nitrogen change its states

Answer:

The answer is A) Other living things cannot use atmospheric nitrogen.

Explanation:

Edge 2022

What do proteins have to do with your traits?

Answers

Answer:

Proteins are molecules made of amino acids. They are coded for by our genes and form the basis of living tissues. For example, proteins catalyse reactions in our bodies, transport molecules such as oxygen, keep us healthy as part of the immune system and transmit messages from cell to cell.

Explanation:

What are these two diagram structures?

Answers

Answer:

Hydrogen bond

Explanation:

How do blood vessels change during vasodilation?
O A. They shrink to decrease body temperature.
B. They expand to decrease body temperature.
C. They expand to increase body temperature.
D. They shrink to increase body temperature.

Answers

Answer:

D. They shrink to increase body temperature

if wrong sorry ya based on my syllabus

Greenhouse
gases
affect Earth by:
O A. keeping heat from radiating back into space.
B. cooling the other gases in the upper atmosphere.
C. undergoing chemical reactions that give off heat.
D. allowing gases from volcanoes to leave the atmosphere.
bac

Answers

Greenhouse gas causes global warming. The answer is A
The correct answer is letter B

what is the different between mechanical digestion and chemical digestion in the mouth?

Answers

Answer and Explanation:

The mouth is part of the digestion system.

Mechanical Digestion is the physical motion our mouth makes to chew up the food. We grind up the food with our teeth, then swallow the food into the next part of the digestive system.

Chemical Digestion in the mouth is the saliva our mouth produces. It breaks down the food along side the mechanical part of the mechanical digestion.

#teamtres #PAW (Plant And Water)

When a trait has two forms and one trait is expressed over the other, the trait that is
expressed is said to be ─

Answers

Answer:The trait that is expressed is said to be dominant

Explanation:

If CO2 is a molecule, how many TOTAL atoms is it made
up of?

Answers

Answer:

Carbon dioxide, CO2, is a chemical compound composed of two oxygen atoms and one carbon atom.

Explanation:

Answer: No number means one atom. For CO2 there is one atom of carbon and two atoms of oxygen. For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom.

How many days are in between moon phases, and if there was a new moon on March 17, when will the next new moon be?

Answers

Answer:

It takes 27 days, 7 hours, and 43 minutes for our Moon to complete one full orbit around Earth. This is called the sidereal month, and is measured by our Moon's position relative to distant “fixed” stars. However, it takes our Moon about 29.5 days to complete one cycle of phases (from new Moon to new Moon).

The 27th, I believe

Explanation:

can racial categories be determined by biological traits?

Answers

Yes depending on what traits you get or receive that could have an strong impacts on an individual

Do you use potentially hazardous products in your home in a way that’s safe for humans and safe for the environment? Explain.

Answers

Answer:

No.

Explanation:

The question says it all even though it safe for humans and the environment it still has the potential to become hazardous given the right conditions

In humans blood type A and B are equally dominant (codominant). Both types are dominant to type O. Aman with type AB blood marries a woman with type O blood, give the genotype and phenotype of all possible offsprings

Answers

Answer:

The correct answer would be -

Genotype: IAIO or IBIO

Phenotype: A Blood or B Blood

Explanation:

Blood group A and blood group B both are dominant over the blood group O, however, both A and B are codominant if present together and form the blood group AB.

The blood group of Aman is AB and If he marries the female with O blood group then possible blood group in offspring would be as follows:

gametes: Aman = IA and IB

woman = IO IO

then cross between:

    IA     IB

IO IAIO IBIO

IO IAIO IBIO

the genotype of this cross would be 50% chances of IAIO and 50% chances of IBIO and phenotype would be either Type A or type B.

In humans, hair color and hair type are controlled by simple dominance. Brown hair (B) is dominant over blonde hair (b). Straight hair (H) is dominant over curly hair (h). A man who is heterozygous for brown hair and also has curly hair is crossed with a blonde-haired woman who is heterozygous for straight hair.

Answers

Answer:

These are the possible phenotypes of the offspring

What is the action force and the reaction force when someone swims?
No link

Answers

Answer:

The action and reaction forces are reciprocal (opposite) on an object. The swimmer pushes against the water (action force), the water pushes back on the swimmer (reaction force) and pushes her forward. The ball puts a force on the wall (action force), and the wall puts a force on the ball (reaction force) so the ball bounces off.

Explanation:

Answer:

the force is push and the reaction is moving forward.

Explanation:

Which of the following is a population?

A) all of the fish, bacteria, and mammals that live in a lake
B) all of the trout that live in a lake
C) all of the different kinds of fish that live in a lake
D) all of the living and nonliving things that interact in and around a lake

Answers

Answer:

maybe C because it says different kind of fish that live in one area that is a lake

so a population is one specific group of species that live in an environment, so your answer would be B

Scientists have been studying four populations in a swamp area. In this area, alligators eat gar (a type of large fish), and both gar and diving ducks eat crabs. The data showed that recently the alligator population has decreased. How could the decrease in the alligator population affect the other populations? Be sure to explain whether the gar population, the diving duck population, and the crab population will change, and why.

Answers

Answer:

There wouldn't be enough resources for the alligator population to live off of thus decreasing its population number. This decrease affects the other populations because it without alligators, its predators and prey wouldn't gain its nutrition from it and it would overall change its environments' habitation. The gar population would increase because they wouldn't be eaten by the alligators and therefore increasing the diving duck population as well. The crab population would decrease because the gar (their prey) population increased which overcomes the number of crab in the population.

Explanation:

Hope this helped :)

The drawing below illustrates a small portion of the molecules that make up a cell membrane. What is the purpose of the phospholipid molecules?

Answers

Answer:

Although there is no picture....

Explanation: Phospholipids protect cells by acting as barriers in their membranes, and they also act as barriers for the organelles within those cells. Phospholipids serve as conduits for different substances to pass across membranes.

Alex is studying a population of fifty organisms that belong to the same species. Some of the organisms have dark spots, some have light spots, some have no spots, and some have stripes.

How does this species most likely reproduce?

Answers

Answer:

Sexual reproduction

Explanation:

There is a significant amount of genetic variation (diversity) here. Asexual reproduction results in little to no diversity, so we can assume this species reproduces sexually. Hope it helps :)

What does "dismiss" mean in these sentences?

Answers

Answer:

The answer is to send away

Studies indicate that acidification of the ocean by the absorption of carbon dioxide is harmful to virtually all marine life and ecosystems. The group most vulnerable to both warming and acidification would be the _________. View Available Hint(s) Studies indicate that acidification of the ocean by the absorption of carbon dioxide is harmful to virtually all marine life and ecosystems. The group most vulnerable to both warming and acidification would be the _________. marine mammals krill and other zooplankton reef corals and other calcareous organisms benthic crustaceans pelagic fishes

Answers

Answer:

The correct answer is - reef corals and other calcareous organisms.

Explanation:

Acidification of the ocean is the continuous uptake of carbon dioxide from the atmosphere and reducing the pH of the water of the ocean. The acidification and warmth due to increasing the carbon dioxide in water cause harmful effects on the life of all marine life.

It affects coral reefs and other calcareous organisms as well as other organisms. These calcareous organisms required more efficiency to repair their cells or have to thickening of layers to survive in  case of acidification of the ocean or to

What is the approximate speed of earth flying through space around the Sun?
100 mph
1000 mph
50,000 mph
100,000 mph

Answers

Answer:67,000 mph, which is about 50,000mph

What are the structure and function of the cytoskeleton in a cell?

Answers

Answer:

The cytoskeleton of a cell is made up of a few key components:

microtubules

actin filaments

intermediate filaments

Those three components/structures help give the cell its shape, and organize its parts.

I hope I helped you, and a "Brainliest" is always appreciated! ☺

hi please help i’ll give brainliest

Answers

Answer:

Perpendicular, Option b

Explanation:

Sorry if it is wrong

What type of energy transformation takes place when a rose takes in energy from the soil and uses the energy to make its own food?​

Answers

Answer:

plants use photosynthesis to make food.

Explanation:

Photosynthesis takes place in the specific cells of plants known as chloroplasts, which are the cell type found in leaves. A single chloroplast is like a suitcase full of major photosynthesis materials. It has water-soaked from the root of the plant, atmospheric leaf absorbed carbon dioxide and chlorophyll in softened, labyrinthine organelles known as Thylakoids.

The true catalyst for photosynthesis is chlorophyll. This light-sensitive molecule is used to stimulate the process by cyanobacteria, plankton, and terrestrial plants.

The chlorophyll molecules are so awful for the green light to absorb that they reflect it like small mirrors that cause the majority of the leaves to look green. In the autumn we only look at these limitless colors of yellow and orange formed in carotenoid pigments after chlorophyll degradation.

Which statement is most consistent with the theory of Natural Selection?
a. Individual organisms learn to adapt to changes in their environment in order to
survive.
b. Different species breed with each other to produce offspring with new helpful
characteristics.
c. Organisms that are best suited to survive will pass their traits onto their offspring.
d. All changes in the environment cause mutations that help organisms.

Answers

Answer: C. Organisms that are best suited to survive will pass their traits onto their offspring.

Explanation: Natural selection is the process where organisms better adapted to their environment tend to survive. This allows them to pass their traits onto the offspring for better survival.

1. What causes the tectonic plates to move?
2. How did the creator of this video explain why
some plates are moving faster than others?
3. What are the 3 main types of plate boundaries?

Answers

Answer: 1. The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift. 2. But scientists were at a loss to explain why some pieces of crust move much faster than others. A new study suggests these tectonic plates control their own speed more than the mantle does. ... The velocities of these plates and the velocities of the boundaries between these plates vary significantly on Earth." 3. Divergent boundaries -- where new crust is generated as the plates pull away from each other.

Convergent boundaries -- where crust is destroyed as one plate dives under another.

Transform boundaries -- where crust is neither produced nor destroyed as the plates slide horizontally past each other.

Explanation:

List and describe the characteristic and position on the periodic table of metalloids.

Answers

Answer:

Metalloids usually look like metals but behave largely like nonmetals. Physically, they are shiny, brittle solids with intermediate to relatively good electrical conductivity and the electronic band structure of a semimetal or semiconductor.

Explanation:

Other Questions
please help!! Work out the size of an exterior and an interior angle of a regular 16-sidedpolygon. At a football stadium, 20% of the fans in attendance were teenagers. If there were 240 teenagers at the football stadium, what was the total number of people at the stadium? Write an expression for the area of the square. please help ill give brainliest Hello, I hope that you're doing well todayCan you help me with this exercise please? Thanks! Another way to write 300 + 70 + 5/10 + 8/100Pick one:A) 370.58B) 370.058C) 30, 070. 508D) 30,070. 58No! links or guessing or lm will report you! :) Refer to the two sources.Source 1"Improving job access continues to be one of the most important priorities for transportation planners, but policy-makers and researchers debate whether this goal is better served by investments in public transportation or increasing access to vehicles. In the analysis of a large-scale panel survey of families, it was found that improving automobile access decreases the likelihood of unemployment and increases earnings, but thatunsurprisinglyautomobiles are also quite costly to own and maintain.A Longitudinal Analysis of Cars, Transit, and Employment Outcomes, by Michael J. Smart and Nicholas J. Klein, 2015Source 2A graph titled Ownership of Private Vehicles in Developed Countries, 1960 to 1995 shows countries on the x axis and ownership in millions on the y axis. The graph shows an upward trend in ownership for each country.On a global scale, which of the following is most likely to occur based on the use of private vehicles to access suburban jobs?Increased urbanizationIncreased carbon emissionsDeclining healthcare accessDeclining economic opportunity Anyone who is good with Geometry Organism A has blunt teeth, while organism B has sharp ones. Identify the organisms on basis of their feed habit and give another point of difference between these two organisms What function do the kidneys perform Justice is defined as __________.A.the administration of lawB.a union of states under one national governmentC.enthusiastic support for ones country and way of lifeD.an order by lawPLEASE NEED ANSWER FAST An aquarium holds 11.35 cubic feet of water, and is 2.8 feet long and 1.5 feet wide. What is its depth? Round your answer to the nearest whole number. How many atoms does methane=CH4? tsQuestion 11 ptsFrom the list below, choose the greatest advantage internships offer while inhigh school.A. You will earn college credit during high schoolB. Opportunity to "try out" a careerC. Obtain your GEDD. Military academies are more likely to accept you area = ___ square units what is respiration and the different types Melinda is planning to attend a private university after she graduates from high school in 3 years. She is devising a plan to save money each month to help with the expenses of attending the university. The cost of attending the private university for one year is $22,500. Her family has promised to contribute $13,500 each year she is in school. Which plan shows the minimum amount of money Melinda must contribute to her savings to have enough money to pay for her first year of tuition? A: save $250 per month for the next 3 years B: Save $375 per month for the next 3 years C: Save $625 per month for the next 3 years D: Save $750 per month for the next 3 years 69 min equals how many hours and min please help me on this!!! 1. What, according to Cassius, isironic about Caesar styling himself a"god"?