An experimenter wants to observe the growth rate of radish seeds under
different temperatures to see if it affects their growth rate. The
experimenter adds water to each seed and places them under several
different heating lamps. The length of their roots is measured every 6
hours. In this experiment the type of soil used is which variable?
A: control. B:Independent. C: Dependent. D: none of these

Answers

Answer 1

Answer:

D, none of these.

Explanation:

The control group is going to be the radish seeds, they stay the same. The independent variable is the heating lamps and their temperatures. The dependent variable is the seed's growth rates.


Related Questions

Can someone please help me . WIL MARK BRAINLIEST !!

Answers


#1 50%
#2 25%
#3 75%
#4 25%
I might be wrong but I think this is the answer

Which of the following correctly describes the chemical reaction for cellular respiration?
F Glucose is broken down into water, Il water is used to convert oxygen to carbon
carbon dioxide, and energy
dioxide
G Carbon dioxide and water combine in the J Carbon dioxide is absorbed and oxygen
presence of sunlight to produce glucose is released
and oxygen

Answers

Answer:

the first one

Explanation:

cellular respiration= glucose + oxygen --> energy + water + CO2

all you need is in the photo ​

Answers

Answer:

i want to ive in habitat a

Explanation:

mark me brainliest bc im smart and helped aloyt

Answer:

D

Explanation:

Because more water is there since its not that dry in habitat A, and transpiration means like water vapor through plants/leaves

can someone PLZ help me on some QUESTIONS PLZ I AM BEGING FOR U

Answers

what questions do you need help with

Which feature do plants have that provide structure and form?

Answers

Answer:

Plants have a cell wall which gives the plant structure. The cell wall is made of cellulose.

Explanation:

Answer: plants have an internal skeleton of bones

Explanation:

A cell going through meiosis changes as it divides. Which process is most important for producing
haploid cells?
Group of answer choices

independent assortment

reduction division

synthesis

crossing over

Answers

Answer:

Reduction Division

Explanation:

Reduction division is the process that is most important for producing haploid cells during meiosis. Therefore, option (B) is correct.

What is meiosis?

Meiosis is a type of cell division that occurs in sexually reproducing organisms. It involves two successive divisions (meiosis I and meiosis II) that result in the production of four daughter cells, each with half the number of chromosomes as the parent cell. This reduction in chromosome number is known as "reduction division."

Reduction division is important because it ensures that the daughter cells produced by meiosis have the correct number of chromosomes. In organisms that have a diploid number of chromosomes (such as humans, which have 46 chromosomes), the daughter cells produced by meiosis have a haploid number of chromosomes (23 chromosomes). These haploid cells can then combine with other haploid cells during fertilization to form a new diploid organism.

Independent assortment, synthesis, and crossing over are also important processes that occur during meiosis, but they do not directly produce haploid cells. Independent assortment refers to the random distribution of chromosomes to daughter cells during meiosis I. Synthesis is the process of DNA replication, which occurs prior to meiosis. Crossing over is a process that occurs during meiosis I in which chromosomes exchange genetic material, leading to genetic diversity in the daughter cells.

Learn more about meiosis, here:

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Give one example of how humans can affect the biosphere. How might that impact the other spheres in the Earth system?

Answers

Answer:  Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere.

Explanation:  Hope this helps and good luck :)

What does the peak of the dotted line represent?

Answers

I can only assume it’s showing you a graph of a reaction with and without a catalyst. So the dotted line would be without the catalyst.

when a planetary object circles its star it does so in an ellipse. the length of the ellipse is defined as
a) shape
b) ellipticalness
c) eccentricity
d) distance

Answers

Answer:

the ellipse of eccentricity

I think it’s B but am not sure

A student mixes strawberry kool-aid and water. A pH meter is used to measure the pH of 5.4. What kind of solution is strawberry Kool-Aid? **

Answers

The strawberry Kool-Aid is an Acid

Most of the cells of the human body contain two sets of 23
chromosomes. Where did these chromosomes come from?
a- both sets came from the mother
b- both sets came from the father
c- a random number of chromosomes came from each parent
e-one set came from each parent

Answers

Answer:

e-one set came from each parent

Explanation:

I think the answer is c but I’m not for sure.

Tigers running across the field. what would happen if the hydrogen ion pumps in the Tigers mitochondria stopped functioning?

Answers

it probably dies of that because that seems intense so maybe it will die

Answer: A

Explanation:the tiger would not be able to keep running

Which discovery was essential to the concept that all life forms have cells as basic units?

Fungi, such as mushrooms and molds, get their nutrition primarily by

Answers

Answer:

A1) The invention of the microscope led to the discovery of the cell by Hooke.

A2) Decaying organic matter

Explanation:

__________

Which of the following organelles is in plant cells, but not animal cells ?
1. Nucleus
2. Endoplasmic reticulum
3. Chloroplasts
4. Cytoplasm

Answers

Answer:

Chloroplasts

Explanation:

Photosynthesis occurs in chloroplast . Plants do photosynthesis , so they have chloroplasts in their cells. But animals dont do photosynthesis , so they dont have it in their cells

Name one disease spread by dust infection​

Answers

Influenza is one type
Silicosis: One of the most common dust-causing diseases, Silicosis, is a form of lung disease marked by inflammation and scarring in the lungs. It occurs when silica, also known as quartz dust, is inhaled. Symptoms of this dust-causing diseases include shortness of breath, cough, and fever.

Explain the effect of activity on a heart rate​

Answers

Hello! i do not understand what you are asking, would you like to explain it to me please? and what subject is this for.

Help pleas due in 25 minutes. this is the 3 time that I have posted this question
In the middle of the night, you are awakened by hunger pains. You proceed to get up and go to the kitchen to have a couple of cookies and a glass of milk. Satisfied you go back to bed content. Explain in detail what tissues, organs, and organ systems are involved in completing that task. Be sure to include how the systems interact. The more detail the better! Start with getting up to get the food and include details on the steps in how the food gets digested.
. Explain in detail

Answers

Answer:

you would use your muscles from your legs and your body to get up from your bed and go to your fridge, your muscular system helps you up by being a structure for the muscles to apply force, you will use arm muscles for getting out cookies and milk. Then you will drink and eat your cookies and milk with your jaw muscle and send it down your esophagus to the intestines for the digestive system to break down your food. Then you will use your legs(muscles) to go back to your bed and sleep. (don't copy this whole thing it is not complete and you must add stuff so it is complete im just giving you an idea or the structure of this essay)

all you need is in the photo ​

Answers

I think it’s C I hope it’s right I’m sorry if I’m wrong
Im pretty sure its C!

which of the following is a biological aspect of an organism's niche?
A) the way it gets food
B) amount of sunlight
C) the water in the area

Answers

Mhmmmmm I think the answer is a but I’m not for sure......

The way it gets food is a biological aspect of an organism's niche.

What is Biological niche?

The term "niche" in ecology refers to the function an organism performs within a community.

The physical and environmental requirements (such as temperature or topography) and interactions with other species that a species must tolerate make up its niche (like predation or competition).

For instance, the tiny songbird from North America known as the Kirtland's warbler which is scarce, has an extremely constrained niche. It exclusively builds its nest amid young jack pine trees (Pinus banksiana), whose seeds need regular wildfires to germinate.

Therefore, The way it gets food is a biological aspect of an organism's niche.

To learn more about Niche, refer to the link:

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When we hear the word bacteria, we probably think of disease transmission or illness. But bacteria provide many
health benefits to humans. All BUT ONE is a health benefit of bacteria today in the world of medicine.
A)
production of vaccines
B)
genetic engineering to produce insulin
fixing atmospheric nitrogen into a usable form
D)
probiotic added to food and vitamin supplements

Answers

Answer:

A is the correct option

Explanation:

In the pharmaceutical industry, bacteria are used to produce antibiotics, vaccines, and medically-useful enzymes.

The answer would be D

Which statement best explains the importance of enzymes lowering the activation energy necessary for reactions to take place?
a Reactions that require less energy to begin are able to occur more quickly.
b Reactions produce heat, causing the chemical bonds to become strong.
c Reactions are able to proceed slowly to maintain the metabolism of the cells.
d Reactions requiring less energy are able to produce less product.

Answers

Answer:

A

Explanation:

because a enzyme simply speeds up a reaction and only does that by pressure and stress not by doing chemical changes

The statement which best explains the importance of enzymes lowering the activation energy necessary for chemical reactions to take place is: A. Reactions that require less energy to begin are able to occur more quickly.

A chemical reaction can be defined as a chemical process which mainly involves the continuous transformation or rearrangement of the ionic, atomic or molecular structure of a chemical element through a break down and formation of chemical bonds, in order to produce a new chemical compound.

As a general rule, the activation energy of a chemical reaction must first of all be reached by its combining chemical elements (reactants) before it can start or begin.

An enzyme can be defined as a biological catalyst that is used to speed up (increase) or catalyze (accelerate) the rate of a chemical reaction, by lowering (decreasing) the activation energy of its constituent chemical elements (reactants).

Hence, a chemical reaction that only require less energy to begin (start) are able to occur more quickly before those that require high energy.

In conclusion, the activation energy of a chemical reaction should be lowered in order for it to occur or take place fast (quickly) enough over a short period of time.

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Explain how a person can reduce their risk of coronary heart disease​

Answers

Answer:

Eating a heart-healthy diet

Eating more protective foods like fruits, vegetables, whole grains, lean protein, fish, nuts, and olive oil. Limit or avoid sweets, fried foods, red and processed meats, and full-fat dairy products.  Too much sodium can raise your blood pressure.

Explanation:

hope i helped

How did the arrival of the green bacteria likely affect the survival of purple bacteria?

Answers

Answer:

Have a wonderful day and I hope this is helpful?

all you need is in the photo ​

Answers

Answer:

The number of small fish and crustaceans increased.

Does diffusion require energy??!! (:

Answers

Answer:

no

Explanation:

i requires some form of ATP

Which of the following is not one of the following elements of hip-hop culture

Answers

Answer:

Yes you are correct

Explanation: The only answer would be graffitti art because that has nothing to do with the hip-hop culture.

Answer:

b

Explanation:

trust the rest is good it b

HEEEEEELP. PLEASEEEEEEEEEEEEE

Answers

there you go ^^

hope i helped

Heather presented to her class a report about the pancreas. Which statement in Heather’s report was not accurate?

Answers

Answer:

C. The pancreas triggers the development of secondary sex characteristics.

Explanation:

y e s

20. Scientists have discovered that there has been a reduction in the butterfly population in an ecosystem. After much
research, they have identified that the carrying capacity for butterflies has been decreased. If the scientists want to increase
the butterfly population, which action should they recommend?
A. removing primary producers
B. spraying of insecticides
C. increasing runoff
D. planting flowers

Answers

Answer:

i think the answer is planting flowers

Explanation:

this will allow more butterflies to have food.

Answer:

hello again

Explanation:

What is the most plentiful gas in our current atmosphere on earth?
A) oxygen
B) helium
C) hydrogen
D) nitrogen

Answers

Answer:

D) Nitrogen..............

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