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
In-s [12.5K]
3 years ago
15

Which of the following describes a properly controlled experiment?

Biology
1 answer:
finlep [7]3 years ago
6 0
The answer is a. It’s the only one with a control group
You might be interested in
¡Necesito ayuda con esto por favoor!
Shalnov [3]

Answer:

1. La enseñanza de la ciencia es importante porque: Contribuye a la formación del pensamiento lógico a través de la resolución de problemas concretos. Mejora la calidad de vida. Prepara para la futura inserción en el mundo científico – tecnológico

2. Las ciencias naturales buscan entender el funcionamiento del universo y el mundo que nos rodea. Se pueden distinguir cinco ramas principales: Física, Química, Astronomía, Geología y Biología.

3. Ramas, Historia, Sistematicidad, Experimentación, y Naturaleza

4. Existen dos categorías en que se agrupan las ciencias naturales, ciencias físicas y ciencias biológicas

5. Cuatro ciencias auxiliares de la Historia. Historiografía se trata de una disciplina que investiga el modo en que se construye la Historia oficial. Arte se una disciplina por completo autónoma, que centra su interés en las diversas formas de manifestación. Paleontología  la ciencia que estudia a los fósiles de los seres orgánicos que habitaron nuestro mundo en épocas pasadas. Cartografía una rama de la geografía, interesada en los métodos de representación espacial del planeta

Explanation:

3 0
3 years ago
Is 28.5 qualitative or quantitative data?
SSSSS [86.1K]

28.5 is quantitative data

4 0
3 years ago
Read 2 more answers
A diagram of chloroplast stroma and thylakoid lumen showing chemical energy, ferredoxin, ferredoxin-N A D p reductase, A D P syn
antoniya [11.8K]

Answer:

If the electron transport system did not work, electrons from PSII would not be transferred to PSI. Ferredoxin would then have no electrons to transfer to NADP+ so NADPH would not be produced. This would also affect the light-independent reaction of photosynthesis because NADPH is needed in this reaction.

Explanation:

Edgenuity's Answer.

4 0
3 years ago
State any two effects gravitational force​
rewona [7]

Any two effects of gravitational force are as follows:

1. The Earth's gravitational force accelerates objects when they fall.

2. It constantly pulls, and the objects constantly speed up.

6 0
2 years ago
The type of muscle shown here is found only in the heart. it is
murzikaleks [220]
Cardiac Muscle, reason its called Cardiac attack when you have that sort of " Heart Attack "
6 0
3 years ago
Read 2 more answers
Other questions:
  • He nurse is teaching an elderly client isometric exercises. which physiologic condition does the client have?
    6·2 answers
  • Which structure would a unicellular organisms most likely have to move around?
    7·1 answer
  • According to the Richer scale, a reading of 2.0 would cause _____ damage, as opposed to a reading of 7.0, which would cause ____
    9·1 answer
  • which of the following was most likely not present in creating the fatty acids of early earth's waters of the past?
    12·2 answers
  • When a fossil fuel is burned, _____ energy is converted to kinetic energy.
    13·2 answers
  • "gas exchange between blood and tissue cells is an example of"
    7·1 answer
  • PLEASE HURRY UP IM TIMED. Genetic modification is a method farmers use so their crops are resistant to disease or cold temperatu
    14·1 answer
  • Identify the cavity that develops entirely from the mesoderm.
    10·1 answer
  • What is the major component of plasma membranes
    8·1 answer
  • Arterial Bleeding (bleeding from the artery) is dark maroon and is under less pressure
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!