All categories

3 years ago

Why was it important to allow all the investigation materials to assume room temperature before beginning the experiment?

Biology

1 answer:

hram777 [196]3 years ago

6 0

Answer:

The temperature is kept at room temperature and mostly preferred to be constant, so that the temperature does't be a variable factor effecting the accuracy of experiment.

Temperature is kept constant to take it as a control factor, so that experimental results are not effected by such outside factors. Such control variables are important in experiments as they minimize the influences from outside.

You might be interested in

WILL GIVE BRAINLIEST TO WHOEVER HELPS ME What are the characteristics of prokaryotes?

jekas [21]

Answer:

A. A prokaryote lacks a well-defined nucleus.

C. A prokaryote lacks cell organelles.

Explanation:

A prokaryote has DNA or RNA just floating in the cytoplasm. There is no nucleus to hold them inside. A prokaryote also lacks a mitochondria and other organelles, so it is different from a eukaryote.

4 0

4 years ago

¿Cuáles son los alimentos que contribuyen una fuente rica en vitaminas y minerales ? A) Cereales y tubérculos B) Leguminosas y f

tino4ka555 [31]

Answer:

todas las opciones son correctas

Explanation:

Las vitaminas y minerales son micronutrientes esenciales que deben ser consumidos a través de la dieta parra llevar a cabo funciones metabólicas y fisiológicas diarias. Es importante destacar que existe una excepción a esta regla: la vitamina D puede ser sintetizada por células de la piel mediante una adecuada exposición a la luz del sol. Todos los alimentos destacados en las opciones mencionadas son ricos en determinados grupos de vitaminas y minerales:

- Cereales: ricos en vitaminas del grupo B y minerales, principalmente fosforo y potasio

- Tubérculos (por ej., la papa y la batata): ricos en vitaminas A y C, y minerales, principalmente potasio, fósforo y magnesio

- Leguminosas: ricos en vitaminas del grupo B y vitamina C, y minerales tales como potasio, hierro y magnesio

- Frutas y Verduras: ricos en vitaminas de todos los grupos y minerales esenciales tales como potasio, hierro, magnesio, fósforo, calcio, zinc, etc.

- Carnes: ricos en vitaminas del grupo B y minerales, principalmente hierro, fósforo, calcio, potasio, magnesio selenio y zinc

8 0

3 years ago

Human eye color is an example of a phenotype that results from the ________ multiple gene products (enzymes and proteins).

Alexeev081 [22]

Human eye color is an example of a phenotype that results from the interaction of multiple gene products.

<h3>Is eye color determined by genetics?</h3>

A person’s eye color results from pigmentation of a structure called the iris, which surrounds the tiny black hole which is located in the center of the eye (the pupil) and helps control the intensity of the light that enters the eye.
The color range of the iris is from very light blue to dark brown. Brown is that the most frequent eye color worldwide.
Eye color is decided by variations in a person’s genes.
Most of the genes related to eye color are involved in the production, transport, or storage of a pigment called melanin.
Eye color is directly associated with the amount of melanin in the front layers of the iris. People with brown eyes have an outsized amount of melanin in the iris, while people with blue eyes have much less of this pigment.

To learn more about eye color: brainly.com/question/1218649

#SPJ4

5 0

1 year ago

A biology class is studying the effect of temperature on the amount of growth of duckweed in an aquarium. What type of data will

iragen [17]

Answer:

$\boxed {\boxed {\sf They \ will \ gather \ quantitative \ data \ using \ a \ thermometer \ and \ a \ balance}}$

Explanation:

First, let's identify the tools needed.

Since the biology class is studying the temperature, they will likely need a thermometer. Also, they are gathering information about the growth of the plants. This could use a balance of a meterstick.

Next, recall the difference between quantitative and qualitative data.

Quantitative: Measurable and numerical results found using scientific instruments/devices
Qualitative: Data found using the senses, such as descriptions and diagrams.

Since the class is measuring temperature and growth using tools, it must be quantitative data.

We can eliminate choices A and B, because they claim the class will gather qualitative data. Then, we can eliminate choice D, because a beaker and timer won't help with temperature and growth. That leaves choice C as the correct answer.

6 0

3 years ago

Read 2 more answers

How does fossil fuel use harm our planet? Please I need an answer ASAP!!!!!

Lubov Fominskaja [6]

Answer:

Fossil fuels produce carbon emissions that contribute to the greenhouse effect. The greenhouse effect is heating up the Earth's atmosphere and causing global warming.

Explanation:

6 0

4 years ago