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k0ka [10]
3 years ago
8

In an experiment to test whether sleep deprivation affected student exam grades, a group of students (Group A) slept their norma

l amount before coming to the exam. The other group (Group B) only had 2 hours of sleep. Group B represents the ______.
A. experimental group
B. hypothesis
C. variable
D. control group
Biology
1 answer:
Ivahew [28]3 years ago
5 0

The correct answer is A. Experimental group

Explanation:

In experiments, the experimental group refers to the group of subjects that receives special treatment or in which the scientist or researcher intervenes. This is the opposite of a control group that does not receive treatment and therefore, it is used as a reference to measure the effect of the treatment.

This implies, in the experiment presented Group A is the control group as they do not have special treatment because they sleep normally and Group B is the experimental group as the researcher modifies their sleep time and reduces it two hours which means in this group there is a treatment or intervention.

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One important adaptation that separated us from other animals in our evolutionary trajectory is _________.
malfutka [58]

We can confirm that one important adaptation that separated us from other animals in our evolutionary trajectory can be considered to be Bipedalism.

<h3>What is bipedalism?</h3>

Bipedalism was the adaptation of early human ancestors to abandon movement on all fours and begin to walk up-right. This was a vastly important adaptation as it provided the early humans with freed hands, allowing for many other uses such as tools and social cues.

Therefore, we can confirm that one important adaptation that separated us from other animals in our evolutionary trajectory can be considered to be Bipedalism.

To learn more about bipedalism visit:

brainly.com/question/23894088?referrer=searchResults

4 0
2 years ago
En las clases de ciencias estan hablando de varios movimientos que presentan las plantas debido a estimulos de ambiente, Pedro p
marin [14]

Answer:

En resultados

Explanation:

El experimento se basa en analizar el movimiento de la planta en respuesta a la luz solar, desde distintas posiciones:

  • planta parada
  • planta semiacostada
  • planta acostada

Durante su experimento, Pedro debe ir registrando los movimientos que observa en las distintas plantas a medida que recibe la luz del sol. El registro de dichos movimientos ante el estímulo forma parte de los resultados.

- Objetivo o propósito del trabajo: analizar la influencia de la luz solar como estimulo para generar un movimiento en plantas desde distintas posiciones.

- Procedimiento: Ubicación de plantas en distintas posiciones y bajo las mismas condiciones ambientales. Exposición de todas las plantas a la misma cantidad de radiación solar. Observación del movimiento durante un periodo de tiempo determinado.

- Resultados: Registro del movimiento de cada planta en cada posición durante el periodo de tiempo que fueron expuestas a radiación. En esta instancia de vuelca en tablas o gráficos, o se describe qué fué lo que se observó durante el experimento. Cuál fue la respuesta de cada una de las plantas.

- Conclusión: Relación entre lo esperado y lo observado. Comparación con otros trabajos similares.  

7 0
2 years ago
Phenotypic features that are coded for by several genes, such as eye color in humans, are called
alukav5142 [94]
They are called polygenic 
4 0
3 years ago
The _______ two objects are to each other, the stronger the force of gravity is between them.
shutvik [7]

Answer:

closer

Explanation:

The closer two objects are to each other, the stronger the force of gravity is between them.

4 0
3 years ago
1
velikii [3]

Answer:

dig deep

Explanation:

8 0
3 years ago
Read 2 more answers
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