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Harlamova29_29 [7]
3 years ago
8

An experiment wants to see if temperature will change the reaction rate for a chemical reaction. The same size and brand antacid

tablet is dropped into exactly 100mL of ice water, room temperature water and hot water. The time it takes for the antacid tablet to completely dissolve is recorded.
What were the control variables in this experiment and what is the independent variable?
Biology
2 answers:
uysha [10]3 years ago
3 0
The antacid tablet because it stays the same through out the whole experiment while the water tempratures
Sunny_sXe [5.5K]3 years ago
3 0
The antacid tablet because it stays the same through out the whole experiment 
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Which statement is true about science?,science is based on the opinions of scientists,science is based on the beliefs of scienti
pochemuha

      Hey friends

The answer would be science is a process used to gather knowledge

                     ~Katie

7 0
2 years ago
Read 2 more answers
Place the steps of the respiration process in the correct order.
noname [10]

During respiration, 3) Air enters the nostrils. 1) Air passes from the trachea to the bronchi. 4) Air diffuses from the alveoli to the blood cells. 2) Oxygen enters the blood cells. 5) Blood transports oxygen to other cells.

<h3>What is respiration?</h3>

During respiration process occurs gas interchange between the body and the environment.

There are two types of respiration,

1) External respiration involves two different stages, inspiration - inhalation- and expiration -exhalation-.

• During inspiration, the diaphragm and intercostal muscles contractions enhance the size of the thoracic box and reduce internal pressure. As a result, air flows in and fills the lungs.

• During expiration, the diaphragm relaxes, and the volume of the thoracic box diminishes, increasing the internal pressure and making the lungs contract, which results in air expulsion.

2) Internal respiration, during which blood and cells interchange oxygen and carbon dioxide.

Steps:

1) External respiration - Inhalation

Air passes from the environment to the lungs through the nose or mouth.

Oxygenated air moves

• From the nose or mouth to the pharynx.

• From the pharynx to the larynx.

• From the larynx to the trachea.

• From the trachea to the bronchia.

• From bronchia to bronchiole.

• Finally, from the bronchiole to alveoli.

Gas interchange with blood occurs in alveoli.

2) Internal respiration - Systemic circulation

The oxygenated blood moves from the lungs to the heart and the rest of the body.

Gases interchange occurs during this step. Cells take oxygen and release carbon dioxide.

Deoxygenated blood moves from tissues to the heart and from the heart to the lungs, releasing carbon dioxide there.

3) External respiration - Exhalation

Carbon dioxide is released by expiration.

Correct order of steps

3) Air enters the nostrils.

1) Air passes from the trachea to the bronchi.

4) Air diffuses from the alveoli to the blood cells.

2) Oxygen enters the blood cells.

5) Blood transports oxygen to other cells.

You can learn more about the respiration at

brainly.com/question/10862677

brainly.com/question/4190530

#SPJ1

<u>Complete question</u>

Place the steps of the respiration process in the correct order.

1) Air passes from the trachea to the bronchi.

2)Oxygen enters the blood cells.

3)Air enters the nostrils.

4)Air diffuses from the alveoli to the blood cells.

5)Blood transports oxygen to other cells.

7 0
1 year ago
Which of the following is an example of polygenic (quantitative) inheritance? a. the ABO blood groups b. Huntington's disease
ra1l [238]

Answer:Human height

Explanation:

Inheritance patterns are often more complex than predicted by simple mendalian genetics. When Mendel studied some phenotypic characters, like the human skin color and height, they were found to be an addictive effect of two or more genes on a single phenotypic character. These are called quantitative characters, which usually indicates polygenic inheritance.

The human height is an example of quantitative character, it is controlled by at least 3 genes having 6 alleles. 3 genes with 6 alleles from both parent can give rise to wide range of phenotypic character (heights).

5 0
3 years ago
Read 2 more answers
As a small change in a person's DNA can cause a genetic disorder
zzz [600]

Affirmative, that is correct.

A genetic disorder is nothing more than an abnormal occurrence in a genome, which means that if you change DNA you'll change the genome, and if the change isn't acceptable, genetic disorders can occur easily.

Genetic disorders is a fun field within genetics, and it isn't easy. The functioning of a gene might be an easy concept now a days, but we haven't mastered it. For example, it's not like maths:

- Somebody comes up with a new, unsolved problem, and tries to solve it, and while doing that, the person can create laws, theorems, equations, etc.

Once you come up against a genetic disorder (you can't just create a genetic disorder to study it) you have to study the genetic disorder itself, what caused it and why.



Hope it helped,


BioTeacher101

3 0
3 years ago
How many dependent variables can be tested during any single experiment?
Vesna [10]
As many as there are needed. you just can't have many independent variables
6 0
3 years ago
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