Which best describes an experiment?
In a lab a scientist measures the height of roses that received different fertilizers.
A scientist measures the speed at which a cheetah travels while it is hunting.
A scientist measures the rate at which a population of wild geese reproduces.
A scientist measures the width of a certain type of maple leaf throughout a forest.

Answers

Answer 1
A: In a lab a scientist measures the height of roses that received different fertilizers.

An experiment must include variables. The other three are just measurements, but since the scientist is varying the types of fertilizers used, this better describes an experiment. It is also done in a controlled environment (in a lab) which helps to eliminate other uncertainties.

Related Questions

this is not biology by the way its Science.
Question:Low viscosity lava is?
a.less runny.
b.more runny.
c.of more density.
d.of less density.

Please Help Me Figure it Out

Answers

Answer:

b

Explanation:

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

d. of less density

I'm quite sure it correct...

good morning.
what is photosynthesis? ​

Answers

Answer:

is the process by which plants use sunlight water and carbon dioxide to create oxygen and energy in form of sugar

Which of the following is a true statement about mitosis and meiosis?
Group of answer choices

A.Mitosis produces haploid cells, but meiosis produces polypoidy cells.

B.Mitosis produces haploid cells, but meiosis produces diploid cells.

C.Mitosis produces diploid cells, but meiosis produces haploid cells.

D.Mitosis produces monoploid cells, but meiosis produces haploid cells.

Answers

Answer:

C. Mitosis produces diploid cells, but meiosis produces haploid cells.

Explanation:

Mitosis produces 2 diploid cells that are identical to each other, and meiosis produces four haploid gametes (sex cells) that are different from one another.

Who’s your favorite nascar driver and why

Answers

Answer:

Kevin Harvick

Explanation: the mission of the Kevin Harvick(my faviort driver) Foundation is to support programs that positively enrich the lives of children throughout the United States. and hes a good driver!

I'm a Bubba fan. My reasons are that Bubba asked NASCAR to "give Larson a second chance" after Larson called him something. That's why. Respect to Bubba.

A. Using the molecular data, make a general statement that compares the "human-kangaroo" relationship ("H-K")to the "human-frog" ("H-F") relationship. B. Does the cladogram agree with this statement? _______ C. Explain your reasoning. PLEASE HELP

Answers

Answer:

lmk if you got the answer

Explanation:

.

During ______, the gravitational forces of the sun and moon pull on the Earth from the same direction, or opposite dire

Answers

Answer:

Spring Tides.

Explanation:

Tides can be defined as the rise and fall of water level in water bodies such as lakes and oceans due to the gravitational force of attraction exerted by the moon on earth. The side closest to the moon creates a bulge of water known as high tide. Low tides are generally experienced when a sea level is not within the bulge.

Generally, the gravitational pull of the Moon cause visible changes on planet Earth's surface.

This ultimately implies that, the pull of the Moon's gravity causes high and low tides on planet Earth's surface.

The various types of ocean tides based on the position of the Earth, Moon and the Sun are;

I. Neap tides.

II. Spring tides.

III. Low tide.

IV. High tide.

V. Brown tide.

VI. Rip tide.

VII. Red tide.

What is a model system? Please give an example.

Answers

Model organisms (yeast, bacteria, mice, fruit flies) Model organisms such as yeast, bacteria, the mouse and the fruit fly are used by researchers to study biological systems. They are commonly used for genetic and historic reasons by scientists.

Hope this helped my darling!

The gene for hemophilia in humans is present on the X chromosome only. Which inheritance pattern does hemophilia in humans represent?

Plz help :\

Answers

Answer please show more

Explanation:

What is a nebula?

the core of a massive star
a cloud of gas and dust in space
a swirling disk with a lot of gravity
the debris remaining after a supernova

Answers

A nebula can be defined as: B. a cloud of gas and dust in space.

What is a nebula?

A nebula can be defined as a cloud of gas and dust in space.

This ultimately implies that, a nebula is a low-density cloud of interstellar hot gas and dust such as:

HeliumHydrogen

Basically, a nebula is needed for the creation or formation of a star as follows:

An increase in the temperature at the center of a nebula causes the small nuclei of atoms to fuse.The nebula gets hotter and brighter as the nuclear fusion sets off a chain reaction while providing enough energy to turn the nebula into a star.

Read more on nebula here: https://brainly.com/question/19530940

What book should I read to enrich my biology knowledge?

Answers

2 the Double Helix by James Watson and what mad pursuit by Francis crick

Please help me. no links I will report you
Please answer fast for the 20 points.

Answers

Answer:

Request a refund for recent purchases · It's less than 48 hours since you bought an app or made an in-app purchase,

Answer:

D. several million years

Explanation:

find the velocity of the spacecraft:

6 ÷ 2 = 3 AU per year

the time for the spacecraft to travel to Wolf 359:

492,000,000 ÷ 3 = 164,000,000 = several million years

PLEASE HELP! BIOLOGY

Glycerol 3-phosphate, an organic molecule, is shown here. It is formed during the breakdown of glucose in glycolysis. It is structurally similar to glyceraldehyde 3-phosphate, formed in the Calvin cycle during photosynthesis. These two molecules have a 3-carbon backbone. Which of these statements accurately describe how cells utilize glycerol 3-phosphate and glyceraldehyde 3-phosphate to synthesize other molecules necessary for life? Select ALL that apply.

A) G3P can be used to form the nitrogenous bases of DNA and RNA by the simple addition of a nitrogen atom.

B) G3P can be used to form the backbone of triglycerides. Glycerol combines with fatty acid tails to form lipids.

C) Two G3P molecules can be combined through anabolic processes to form glucose, a six- carbon sugar required by cells.

D) G3P can be used to form ATP by the catabolic process of adding two phosphate groups to the existing three-carbon backbone of the molecule.

E) G3P can be used in to synthesize amino acids, which contain a central carbon, a carboxylic acid group, and a variable R group. These amino acids can the combine to form proteins.

Answers

Answer:

The Answer is,  B, C, And E. I just took it on USATESTPREP.

B) G3P can be used to form the backbone of triglycerides. Glycerol combines with fatty acid tails to form lipids.

C) Two G3P molecules can be combined through anabolic processes to form glucose, a six-carbon sugar required by cells.

E) G3P can be used in to synthesize amino acids, which contain a central carbon, a carboxylic acid group, and a variable R group. These amino acids can then combine to form proteins.

The statements which describes how cells utilize glycerol 3-phosphate and glyceraldehyde 3-phosphate include:

G3P can be used to form the backbone of triglycerides. Glycerol combines with fatty acid tails to form lipids.Two G3P molecules can be combined through anabolic processes to form glucose, a six-carbon sugar required by cells.G3P can be used in to synthesize amino acids, which contain a central carbon, a carboxylic acid group, and a variable R group. These amino acids can then combine to form proteins.

What is Synthesis?

This involves the combination of different constituents in other to form a whole one.

The enzymes glycerol 3-phosphate and glyceraldehyde 3-phosphate to synthesize other molecules such as lipids and amino acids which are necessary for life.

Read more about Glycerol 3-phosphate here https://brainly.com/question/13033785

How does a region’s latitude impact its climate? What role does the sun play on an area’s climate?

Answers

Answer:

Places with latitudes closer to the Equator have hotter climates. Places with latitudes closer to the Poles have colder climates. This happens because the Sun's rays hit them more or less directly.

The Sun powers life on Earth; it helps keep the planet warm enough for us to survive.

The latitude of a region influences its climate, and the sun plays an important role in the area's climate because the more the area receives close sun rays, the warmer it is, and the less the area receives close sun rays, the cooler it is.

What is the significance of the latitude in terms of temperature?

Latitude has a significant impact on temperature determination because the closer an area is to the equator, the more sunlight it receives, and thus the warmer it is; whereas in Arctic regions, the area is farther from the equator and thus receives less sunlight.

Hence, the latitude of a region influences its climate, and the sun plays an important role in the area's climate because the more the area receives close sun rays, the warmer it is, and the less the area receives close sun rays, the cooler it is.

Learn more about the latitude here.

https://brainly.com/question/28606059

#SPJ2

a) A scientist measures the moth population in an ecosystem. The population follows a logistical growth curve. When the moth population reaches 600, the moths begin to compete with each other for resources. They reach a carrying capacity of 2,000. Draw the
growth curve for the moths on the graph below. Label the point where they begin
competing and where they reach carrying capacity. (6 points)

Answers

:b

............................

please help its urgent. 100 points

Answers

Answer:

1. Watson and Crick

2. Franklin and Wilkins

3. amount of base pairs

4. double helix

5. pyrimidine

6. purine

7. replication

8. DNA polymerases

9. nitrogen base

10. five-carbon sugar

11. phosphate group

Explanation:

I hope this was helpful, good luck!

1. Watson and Crick

2. Franklin and Wilkins

3. amount of base pairs

4. double helix

5. pyrimidine

6. purine

7. replication

8. DNA polymerases

9. nitrogen base

10. five-carbon sugar

11. phosphate group

20 points
1. Some students used vinegar to dissolve away the shells of three eggs
and used these eggs as models of human red blood cells. The students
observed the changes in the eggs when they were placed in different
solutions. Which statement best describes the role of the cell membrane
in this model? *

Answers

Answer:

where is the 20 points!!!!!!!

culture of honey bees is called ……………….

a)pisciculture b)apiculture c)sericulture d)none​

Answers

B. Apiculture

Explanation:

I know this because I learned it in class before

20. The five recognized periods of mass extinction have- *


Answers

Answer:

1. Ordovician Mass Extinction (about 44o million years ago)

2. Devonian Mass Extinction (about 375 million years ago)

3. Permian Mass Extinction (about 250 million years ago)

4. Triassic-Jurassic Mass Extinction (about 200 million years ago)

5. Cretaceous-Tertiary Mass Extinction (about 65 million years ago)

Explanation:

Which is a pollutant associated with high-tech gadgets in landfills?
A. Carbon Dioxide
B. Oxygen
C. Lead
D. Nitrogen

Answers

The pollutants associated with the high tech-gadgets or e-waste include mercury, lead, cadmium, etc. So the correct answer is option C.

An electronic device that has reached the end of its usable life cycle is called as the electronic waste or the e-waste. The electronic waste contains a lot of toxic compounds inside them and should be handled carefully because this e-waste releases the toxic pollutants in the environment which can cause air pollution and also has an impact on respiratory health.

Burning of e-waste can release fine particles (pollutants) into the enviroment which can cause chronic diseases and cancers as well.

To learn more about the pollutants, refer to the link:

https://brainly.com/question/29594757

#SPJ1

can someone help me plzzzz

Answers

Answer:

D I studied it in geography

1. what is carrying capacity?

2. What are the variables in carrying capacity?

3. What is a sustainable food source?

4. What is a lasting food source?

5. Why is it important to control the species population?​

Answers

1- when there’s a minimum amount of capacity

WILL GIVE BRAINLIEST IF CORRECT
At one time, farmers had to spray insecticides on their fields to protect their crops from insects. Today, farmers can buy seeds that produce plants that are resistant to many insects. Which process contributed to the development of these seeds?
a. Cloning
b. Artificial Selection
c. Genetic Engineering
d. Asexual Reproduction

Answers

Answer:

C

Explanation:

Genetic Engineering is the largest contributor, but there's an argument to be made for artificial selection.

Answer:

The Answer Is C!!

Explanation:

once again, wassup yostos from bms Mrs hees 4th pd

How long does it take a 100.0 g sample of As-81 to decay to 6.25g?

How long does it take a180 g sample of Au-198 to decay to 1/8 its original mass?

What is the half-life of a radioactive isotope if a 500 g sample decays to 62.5g in 24.3 hours?

How old is a bone if it presently contains 0.3125 g of C-14, but it was estimated to have originally contained 80.0 g of C-14?

Thallium-208 has a half-life of 3.053 minutes. How long will it take for 120.0 grams to decay to 7.50 grams?

Answers

Answer:

1. Total Time: (34s)*(4) = 132s

2. 2.69 days

3. 8.10 hours

4. 5730 years*8 half lives = 45,840 years

5. 12.21

A system releases 7.9kj of heat while 6.5kj work is done on it. Calculate

Answers

Question:

A system releases 7.9kj of heat while 6.5kj work is done on it. Calculate the total change in internal energy during these operations in kJ.

Answer:

14.4kJ

Explanation:

The first law of thermodynamics which states that the total change in internal energy (ΔU) of a system is the sum of the total heat (Q) released by the system to its surroundings and the total work done (W) on the system by its surrounding, can be expressed mathematically as follows:

ΔU = Q + W      -------------------(i)

From the question;

Q = 7.9kJ

W = 6.5kJ

Substitute these values into equation(i) as follows;

ΔU = 7.9kJ + 6.5kJ

ΔU = 14.4kJ

Therefore, the change in internal energy is 14.4kJ

She is confident, her idea is strong and connective  Her voice is clear and enough for listening

Answers

Answer:

Explanation:

This should be you lol

The process of converting the "language" of mRNA into the "language" of proteins is called *
A - translation
B - transcription
C - mutation
D - active transport

Answers

A is the correct answer

Humans are in the group of living organisms that has the highest percentage of
species.

A. True
B. False

Thank you!

Answers

Answer:

The answer would be B. False.

Explanation:

Insects actually have moe than 1 million species, and that's only the ones that have been discovered so far, so that means it's false to say humans have the most.

How do the biosphere and atmosphere interact?

Answers

The biosphere and atmosphere are dynamic, constantly reflecting these interactions and feedbacks. Biosphere-Atmosphere Interactions focuses on the sources and sinks of greenhouse gases (GHGs), air pollutants, particulate matter, water, and energy between the Earth's surface and the atmosphere.

Answer:  The biosphere and atmosphere are dynamic, constantly reflecting these interactions and feedbacks. ... Biosphere-Atmosphere Interactions focuses on the sources and sinks of greenhouse gases (GHGs), air pollutants, particulate matter, water, and energy between the Earth's surface and the atmosphere.

Explanation:

In order for a neuron to receive and transmit a message it must be in a polarized state. While in this rest state there are more sodium ions outside the cell membrane while potassium is prevalent inside the cell. This causes the neuron to maintain a neutral charge. Once the action potential arrives at its [ Select ] , a nerve cell will shuttle the message down its own axon and to the next neuron via its [ Select ] . This impulse will cause the cell to become [ Select ] and will effectively change the charge of the neuron to a [ Select ] charge. After sodium rushes into the cell, the potassium will rush out in order to [ Select ] . Once the impulse reaches the axon terminal, it is [ Select ] that stimulates a [ Select ] to continue the message to the next neuron. The neuron then undergoes a [ Select ] when all ions are repositioned with help of the

Answers

Answer:

The process of nerve impulse transmission by means of an action potential involves the processes of depolarization, repolarization, hyperpolarization and restoration of resting memebrane potential.

Explanation:

In order for a neuron to receive and transmit a message it must be in a polarized state. While in this rest state there are more sodium ions outside the cell membrane while potassium is prevalent inside the cell. This causes the neuron to maintain a neutral charge. Once the action potential arrives at its dendrites, a nerve cell will shuttle the message down its own axon and to the next neuron via its axon terminal. This impulse will cause the cell to become depolarized and will effectively change the charge of the neuron to a poositive charge. After sodium rushes into the cell, the potassium will rush out in order to restore its resting memebrane potential. Once the impulse reaches the axon terminal, it is used to open voltage- gated calcium channels releasing calcium ions that stimulates a neurotransmitter to continue the message to the next neuron. The neuron then undergoes a repolarisation when all ions are repositioned with help of the voltage-gated ion channels.

Explain how the sun determines climate distribution. What type of weather conditions does the sun control?

Answers

Answer:

The rate of energy coming from the Sun changes slightly day to day. It has been suggested that changes in solar output might affect our climate both directly, by changing the rate of solar heating of the Earth and atmosphere, and indirectly, by changing cloud forming processes

The Sun warms our planet, heating the surface, the oceans and the atmosphere. This energy to the atmosphere is one of the primary drivers our weather. Our climate is also strongly affected by the amount of solar radiation received at Earth.

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