1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alexxandr [17]
3 years ago
11

(b) Identify the dependent variable in the experiments. Identify a control group missing from the second experiment. Justify the

need for this control group in the second experiment.
Biology
1 answer:
hammer [34]3 years ago
4 0

Hello. You have not submitted the experiments to which this question refers, which makes it impossible for it to be answered. However, I will try to help you in the best possible way.

A dependent variable is one that is influenced by an element, in order to present a result, that is, it is a variable that does not establish itself, being dependent on another variable to establish itself. An example of a dependent variable can be seen in an experiment that seeks to determine the differences in growth rates of bean plants that were fertilized with different organic fertilizers. As you can see, this is an experiment where the different organic fertilizers influence differences in the growth rate of bean plants. Thus, the growth of these plants depends on the fertilizer, this growth being the variable dependent on the experiment.

A control group, in turn, is an element of the experiment that does not receive the element that is being tested in the same experiment. The control group is important, because it allows the researcher to see the results of a system where the tested element does not exist, thus being able to determine the real differences that the tested element is capable of causing. Using the same example presented in the paragraph above, we can see that the different organic fertilizers are the elements tested in the experiment. These fertilizers will be applied to the plants, however it is important that at least one of these plants does not receive any fertilizer, so that the difference between a system with fertilizer and a system without fertilizer can be evaluated. This plant that received no fertilizer is the control group.

You might be interested in
I need some help here now ASAP
Aleks [24]

Answer:

None of those, its called Soul Horizons

Explanation:

5 0
3 years ago
Read 2 more answers
20 POINTS PLEASE ANSWER QUICK
forsale [732]

Answer:

Their Cell walls

Explanation:

Bacteria has a cell made up of peptidoglycan

Archaebacteria has a cell wall made of various compounds)

Their rRNA is different, so different taht tehy are placed on different part of the evolutionary tree.

6 0
3 years ago
Read 2 more answers
Sir isaac newton was sitting under an apple tree when an apple tree on his head. Was the force acting on the apple doing so dire
madreJ [45]

Answer:

A. At A Distance

Explanation:

4 0
3 years ago
Answer all 20 and I can give you brainliest
ExtremeBDS [4]

Answer:

1.(D)

2.(D)

3.(C)

4.(B)

5.(B)

6.(C)

7.(B)

8.(D)

9.(A)

10.(africa)

11.(D)

12(B)

13(?)Convergent boundaries

14(C)

15(A0

16(​Sturdy Desks and Tables. The safest place to perform the 'duck, cover, and hold' action is under a sturdy desk or table. ...

Bed or Closet. When you are in bed during an earthquake, stay there. ...

A Room with No Windows. Stay away from glass windows during an earthquake. ...

Door Frame. ...

Outside your Home.

So C?

17(C)

18(D)

19(B or A)

20(B)

Extra credit question

Earth is special because it is an ocean planet. Water covers 70 percent of Earth's surface. Earth's atmosphere is made mostly of nitrogen and has plenty of oxygen for us to breathe.There are multiple reasons for earth to be a special planet. Reasons are as follows

1.Earth is the only planet known where intelligent life exist.

2.It lies in the circumstellar habitable zone (CHZ). CHZ is defined in the image given below.

3. Earth has a unique magnetic field which protects the earth from the harmful solar winds. These solar winds played a role in transforming venus into hell.

4. Earth has Van Allen radiation belts which protects it from cosmic rays.

5. Our large neighbour Jupiter protects is from many comets and asteroids that come from the keiper belt and Oort cloud.

6. Earth's atmosphere is favorable to support life on earth. This atmosphere consists of different gases in adequate amount. If the percentage of gases would differ then life on earth may face serious consequences.

7. Tectonic plates of earth differentiates it from most other planets.

8. Earth has a solid crust unlike the gaseous planets.

9. Earth has been gifted with a medium sized star which release solar winds and protect us from the harmful radiation of outer space.

Brainliest?

Explanation:

5 0
3 years ago
Atoms of nonmetals have a tendency to __ or__ electrons when they react.
Lera25 [3.4K]

Answer:Atoms of nonmetals have a tendency to gain or share electrons when they react.

Explanation: Non-metals are elements that gain electron to form negatively charged ions known as anions.

When non-metals react, they either gain/accept electron from a metal atom or share electron with another non-metal atom. When a non-metal accepts an electron from a metal atom, the type of bond formed is called ionic or electrovalent bond. In electrovalent bond, the metal atom transfers its valence electrons to the non-metal atom so that both attain a stable octet or duplet structure.

When a non-metal shares electron with another non-metal atom, the type of bond formed is known as covalent bond. In covalent bond, the two non-metal atoms share a pair of electron, each atom donating one electron to form a pair.

8 0
3 years ago
Other questions:
  • Am I right? I will mark a brainliest! :) there is a picture!
    9·1 answer
  • What is the term for a reproductive cell?
    11·2 answers
  • The point beneath the earths surface where rock breaks and an earthquake is produced known as the
    11·1 answer
  • Which one of the following is true for a theory?
    14·1 answer
  • For which form of reproduction is a mate required? asexual reproduction sexual reproduction mitosis binary fission
    9·2 answers
  • A sheep embryo is removed from a mother's uterus and 8 individual cells are separated and allowed to grow and develop in a test
    10·1 answer
  • GIVING BRAINLIEST!!!!!
    6·1 answer
  • I need to know the independent variable​
    12·2 answers
  • What are some potentially linked genes you think humans might have?
    8·1 answer
  • Prokaryotic cells lack which of the following?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!