Which two methods do scientists use to gather information ??

Answers

Answer 1

Answer: Experiments and observations

Explanation:

Hope this helps


Related Questions

Why it is important to living organisms that nutrients are cycled

Answers

Answer:

When nutrients are recycled, the energy is put back into the bottom of the food chain, letting it be used instead of wasted.

Explanation: Hope this helps :P

What color is ragweed pollen

Answers

Answer:

A yellow-green.. Just search it up.

Explanation:

The color which can be attributed to the ragweed pollen when it is been analyzed can be regarded as greenish yellow.

How can the color of ragweed be described?

Ragweed has tiny heads of greenish yellow blooms that produce large amounts of pollen that is dispersed by the wind rather than insects. While ragweed blooms are not particularly eye-catching, it is frequently simpler to identify these plants by their stems and leaves.

In the aster family, Asteraceae, the genus Ambrosia contains flowering plants known as ragweeds. They are found across the Americas' tropical and subtropical climates, particularly in North America, where the southwestern United States and northwest Mexico are the genus's origin and diversity core.

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3. Explain why energy is required to move the hydrogen ions across the membrane in the direction
indicated in Model 1.

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Answer:

Energy is required to move the hydrogen ions across the membranebecause the hydrogen ions are movingagainst the concentration gradient. High potential energy electrons provide the energy necessary to pumphydrogen ions across the inner mitochondrial membrane.

Which of these could NOT be used to replace a wire in a circuit?

iron nail
iron nail

bendable straw
bendable straw

steel spoon
steel spoon

aluminum foil

Answers

Answer:

bendable straw

Explanation:

It is made out of plastic and can bend pls mark as brainlist

what is the role of chloroplasts in photosynthesis​

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Answer:

Explanation:

The primary function of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use.

Which part of the water cycle affects humidity by increasing
water vapor in the air?


HELPPP MEEE PLSSSS

Answers

The answer is
Evaporation

The chemical energy stored in ATP during photosynthesis is released during the dark phase to _____.

produce O 2
produce CO 2
release energy for the "light."
produce carbohydrate from CO 2

Answers

answer-

produce carbohydrate from co2

Students investigate how soil pH affects the height of tomato plants. Each of six tomato plants receives the same amount of

light each day and is planted in the same size pot and given the same amount of water. Each plant is planted in soil with a

different pH What is the dependent variable in the investigation?

Сь

Ос

Od

The size of the pot in which the plants are grown

The pH of the soil in which the plants are grown

The amount of water given to the tomato plants

The height to which to tomato plants grow

Answers

Answer:

The height to which to tomato plants grow

Explanation:

In an experiment, the dependent variable is the variable that the experimenter measures. It is the variable that responds to changes made to the independent/manipulable variable.

According to this question, students investigate how soil pH affects the height of tomato plants. The different pH each plant receives is the independent variable while the HEIGHT OF THE PLANTS that responds to the soil pH or that is measured by the students is the DEPENDENT VARIABLE.

Which list gives the complete path for pollen as it fertilizes a plant?

stamen - pistil - anther - ovary
stamen - anther - pistil - ovary
anther - stigma - style - ovary
anther - style - stigma - ovary​

Answers

Answer: 3

Explanation:

The complete path for pollen as it fertilizes a plant anther, stigma, style, and ovary. Thus, option C is correct.

What is anther, stigma, style, and ovary?

Anther is known as the part of a stamen and it that produces and it does contain pollen and it is usually borne which present on a stalk which shows the illustration. Anther is known as the part present in the stamen in which the pollen has to produced.

Style is known as the tube shaped structure which has the function of support to the stigma. The main function of the style has to assist the procedure of the fertilization as well as giving permission of pollen tube that travel in the delivery of the sperm cells in the egg.

Ovary is known as the basal enlarged part of the pistil, and it is known as the flower's female organ. The ovule is present in the ovary later it develops into the seed just after the process of fertilization. The main character of ovary is that it matures and develop into the fruit.

Therefore, The complete path for pollen as it fertilizes a plant anther, stigma, style, and ovary. Thus, option C is correct.

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What is the letters of the complimentary base pairs to convert this DNA strand in to an RNA strand: GCTGCA

Answers

Answer: CGACGU

Explanation: Remember the base pairing rules: cytosine with guanine and adenine with uracil (in the absence of thymine, which mRNA does not have). To compliment the given strand, you'd have to choose the base that would pair with each individual nucleotide.

Hope this helps,

Lacia

explain how the equations for photosynthesis and cellular respiration compare.

Answers

Answer:

In Photosynthesis, carbon dioxide and water is yielded to glucose and oxygen. In respiration, glucose and oxygen is yielded to carbon dioxide and water.  C6H12O6 (glucose) + O2(oxygen) → CO2(Carbon Dioxide) + H2O(water) + ATP energy.

Explanation:

The equations of photosynthesis and cellular respiration compare in such a way that one seems like the opposite of the other.

In photosynthesis, inorganic materials such as water and carbon dioxide are used to generate carbohydrates according to the following equation:

[tex]6CO_2 + 6H_2O + energy ---> C_6H_1_2O_6 + 6O_2[/tex]

In cellular respiration, carbohydrates are broken down to generate energy with water and carbon dioxide being by-products according to the equation below:

[tex]C_6H_1_2O_6 + 6O_2 ---> 6CO_2 + 6H_2O + energy[/tex]

Thus, the two processes are chemical opposite of each other. The starting materials of photosynthesis are the products of cellular respiration and vice versa.

More on photosynthesis and respiration can be found here: https://brainly.com/question/1388366

Why is DNA considered still an essential macromolecule for all living things?

Answers

Answer:

DNA is considered to essential be the “instructions” or “blueprints” of life because it contains the code for the proteins that give you your traits.

Answer:

Your answer is below . pleaseee mark me the brainliest.

Explanation:

DNA is vital for all living beings – even plants. It is important for inheritance, coding for proteins and the genetic instruction guide for life and its processes. DNA holds the instructions for an organism's or each cell's development and reproduction and ultimately death.

how do atoms become charged and how do they balance those charges

Answers

Answer:

Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.

Explanation:

What the main job of enzymes?

1.thicking the blood
2.Speeding up chemical reaction
3.Copying DNA

Answers

Answer:

They are vital for life and serve a wide range of important functions in the body, such as aiding in digestion and metabolism.

Explanation:

construct a dialogue between your friend about the online class​

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do you like online?
no

Answer:

Them: Do you like online school?

Me: Yes its kinda fun.

Them: why?

Me: Because i can watch anime all day without them knowing

How does a decrease/decline in a top predator impact biodiversity in an ecosystem?

Answers

Answer:

The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ... When prey becomes more scarce, the predator population declines until prey is again more abundant. Therefore, the two balance each other. When the predators are removed, prey populations explode.

SOMEBODY HELP MEEE WHAT IS THE Y AXIS

Answers

It says Y-axis (Population).
So on the graph, the Y-axis would be the population.

Answer:

on the graph the  y-axis  (Population).

Explanation:

It says Y-axis (Population).

So on the graph, the Y-axis would be the population.

Hope this helps!

Which of the following are ways in which thermal energy (heat) can be transferred? Select all that apply.
A.) radiation
B.) convection
C.) consumption
D.)conversation
E.) conduction
F.) entropy
G.) telepathy
H.) bippity boppity boo-yah

Answers

Answer:

A.radiation

D.conversation

Anyone good in Biology?

Answers

Answer:

6 Cell Organelles

Nucleus. nucleus; animal cellA micrograph of animal cells, showing the nucleus (stained dark red) of each cell. ...

Ribosomes. Ribosomes are the protein factories of the cell. ...

Endoplasmic reticulum. ...

Golgi apparatus. ...

Chloroplasts. ...

Mitochondria.Explanation:Animal cells each have a centrosome and lysosomes, whereas plant cells do not. Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not

Why does the pressure change inside of earth?

Answers

Answer:

Because of the core under the mantle is a huge fire

PLZ HELP me...im struggling

Answers

If D is dominant and d is recessive

1. Dd
2. DD
3. dd

i will give you 10 points if you answer this question!which major ecosystem of the United States is represented by the area shown in red?

O Alpine
OTundra
OGrassland
O Deciduous forest​

Answers

i’m almost 90% positive that it’s tundra because it is a very cold place

Answer:

b) Tundra

Explanation:

Tundra is the major ecosystem of the United States represented by the area shown in red of Alaska. Because, they are very cold and snow fall regions. Hence, option (b) is the correct answer.

how do you expect the period of a planet to change as its average distance from the sun increases?

Answers

Answer:

The closer a planet is to the sun, the stronger the sun's gravitational pull on it, and the faster the planet moves.

Which statement about natural selection is true?

Answers

I really think its D

You wan to study the effect of different types of water on the growth of plants you choose the same type of plants. All plants are planted in the same type soil, placed in the same location, exposed to the same room temperature. You water each plant with one of the four different types of water (salt water, regular water, sugar water and distilled water.) after a two-week period, the height of the plants is measured. What is the manipulated, responding, controlled variable

Answers

Answer:

The correct answer is -

The manipulated - type of water

Responding - the height of plants

Controlled variable- regular water

Explanation:

The manipulated or independent variable is in scientific research is a variable that is changed or manipulated to see the response of the responding variable or dependent variable.

In this case type of water, plants get, is manipulated as a different type of water is provided to different plants. So variable that is measured or showing response to the manipulated variable is, is responding variable that is the height of the plants.  

The controlled variable is a variable that is set to see or compare the difference in normal condition and manipulated conditions that is regular water here in this case.

what is the flow of energy in an ecosystem.

Answers

Answer:

The cycle of energy is based on the flow of energy through different trophic levels in an ecosystem. At the first trophic level, primary producers use solar energy to produce organic material through photosynthesis. The herbivores at the second trophic level, use the plants as food which gives them energy.

Hope this helps ; )

How does your posture amount to proper posture?

Answers

Good posture is important to balance: by standing up straight, you center your weight over your feet. This also helps you maintain correct form while exercising, which results in fewer injuries and greater gains


some good posture:

chin parallel to the floor
shoulders even (roll your shoulders up, back, and down to help achieve this)
neutral spine (no flexing or arching to overemphasize the curve in your lower back)
arms at your sides with elbows straight and even
abdominal muscles braced
hips even
knees even and pointing straight ahead
body weight distributed evenly on both feet.
Good posture helps you out slot with your back problems

1. Question: What effect does the amount of water have on plant growth?
Hypothesis:
If, then, because

Answers

Answer:

If a plant's soil has too much water, the roots can rot, and the plant can't get enough oxygen from the soil. If there is not enough water for a plant, the nutrients it needs cannot travel through the plant. A plant cannot grow if it doesn't have healthy roots, so the proper balance of water is key when growing plants

Explanation:

The hypothesis of this scientific question will state: IF the amount of water increases, THEN the plant growth will also increase.

WHAT IS HYPOTHESIS:

Hypothesis is a testable explanation of a phenomena. It is used in the scientific method to provide a possible answer to a scientific question.

The hypothesis, which is subjected to testing via experimentation, shows the relationship between the independent variable (cause) and dependent variable (effect).

The question of this experiment is as follows: 'What effect does the amount of water have on plant growth'. This means that the independent variable is the amount of water and the dependent variable is the measurable growth of plant.

Therefore, the hypothesis will read as follows: IF the amount of water increases, THEN the plant growth will also increase.

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please help me! asap im trying to figure this out

Answers

Answer:

you have it right I think

Answer:

[tex]\boxed {\tt 2nd \ Answer}[/tex]

Explanation:

An enzyme is a protein that speeds up a chemical reaction. Enzymes are shape specific. The active site is a specific shape, which means it can only break down specific substrates.

Certain conditions can denature enzymes. For example, extreme temperatures or pH will cause the enzyme to deform and change shape, which means it cannot perform its job.

Therefore, the best choice is the second one: enzymes work best in specific conditions and only break down specific substrates.

What are the defining characteristics of solids, liquids, and gases (think about their particles)?
Solid:
Liquid:
Gas:

Answers

solid:
for a solid the particles are compact and are rubbing and vibrating against each other
Liquid:
The particles for a liquid are more loose than the solid and they bounce off each other freely
Gas:
For a gas the particles are the most loose than a solid and a liquid. In a gas the Pericles race past each other And the particles are really separated
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For a bill to become a law, ____ of the 13 states had to approve it. -6(7) + 36 + (-12)Helpppppp When you write to give a personal critique of judgement, you are writing to ______.persuadeinstructentertainevaluateinform The Office Interiors Company has developed a new, modern office chair. Initial sales forecasts are for 64 chairs per day. The assembly operations will run for two eight hour shifts. The process engineer and operations manager are working together to balance the line to make the new chair as efficiently as possible. The process engineer suggests using the longest operating time rule while the operations manager suggests using the most followers rule to design the line. If there is a tie, use the other rule to break the tie.Required:Based on the processing information, which approach do you recommend? Why? Monty Furniture Company started construction of a combination office and warehouse building for its own use at an estimated cost of $2,500,000 on January 1, 2020. Monty expected to complete the building by December 31, 2020. Monty has the following debt obligations outstanding during the construction period. Construction loan-12% interest, payable semi-annually,issued December 31, 2019 $1,000,000 Short-term loan-10% interest, payable monthly, and principal payable at maturity on May 30, 2021 700,000 Long-term loan-11% interest, payable on January 1 of each year. Principal payable on January 1, 2024 500,000.1. Assume that Monty completed the office and warehouse building on December 31, 2020, as planned at a total cost of $2,600,000, and the weighted-average amount of accumulated expenditures was $1,800,000. Compute the avoidable interest on this project.2. Compute the depreciation expense for the year ended December 31, 2021. Monty elected to depreciate the building on a straight-line basis and determined that the asset has a useful life of 30 years and a salvage value of $510,000. the magnetosphere pulls particles coming toward earth to the Hector went to the grocery store by heading due north at 3 m/s, then turning east and continuing atthe same speed for another three blocks. Which of the following is true about Hector's velocity?A. Hector's velocity did not change because his direction did not change.B. Hector's velocity changed because his speed changed.C. Hector's velocity changed because his direction changed.D. Hector's velocity did not change because his speed did not change. What is the equation of the line that passes through the point (-5,7) and has a slope of -2/-5 Can someone Find f(-1) Movie tickets are $9.00 for adults and $5.50 for children. One evening, the theater sold 36tickets worth $282. How many adult tickets were sold? How many child tickets were sold? Why do you think that Holmes and Watson are clever spies?Please help its due tommorow. I hope you will help :) Please help I would appreciate it Were the colonists justified in going to war with Great Britain?Defend your response using historical evidence from at least 3 British actions and colonial reactions 30 points ! I NEED HELP PLEASE!! pls as fast as possible plssss, its mcq can someone help with.this please Please help me its due today! Please help D=Mesopotamia was a part of the Fertile Crescent, which was named after its rich soil.TrueFalse Water flowing through a watershed is effected greatly by which force?Earth's centripetal force around the Sun, Turgor Pressure, gravity or Hydrotropism HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP