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8090 [49]
3 years ago
8

Explain the difference between independent variables, dependent variables, and control variables.

Biology
1 answer:
IgorC [24]3 years ago
3 0

Answer:

Independent: Purposely altered

Dependent: Changes with respect to the independent being altered

Controlled: Never changes

Explanation:

An independent variable is a variable in which does not rely on other pieces/variables of an experiment to assume a value. In other words, it does not change when other variables change. However, it can be changed intentionally by the scientist.

A dependent variable is a variable in which its change in value relies on other pieces/variables of an experiment to assume a value. So, if the indeoendent variable is changed, the dependent variable will change as well. The opposite is not true though - if the dependent variable changes (for whatever reason), the independent variable hasn't necessarily been changed.

A controlled variable is a variable that stays CONSTANT throughout an experiment. It is never changed, and nothing will change it. An example of a control variable is the number of participants in a study: no more participants are being added, and no participants are being removed. The number of participants remains STATIC throughout the study.

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About 12 to 24 hours after the last meal, a person's blood sugar level normally varies from 60 to 90 mg per 100 ml of blood, alt
VMariaS [17]

Answer:

Homeostasis.

Explanation:

The insulin and glucagon hormone are important for the maintenance of the blood sugar level in the body. The glucagon increase the blood sugar level whereas insulin decreases the blood sugar level.

The homeostasis may be defined as the process of the maintenance of the normal physiological conditions of the body irrespective of the change in the external and internal environment. The change in the blood sugar level can be maintained by the insulin and glucagon hormone and is important for the homeostasis maintenance.

Thus, the answer is homeostasis.

8 0
3 years ago
Most neurodegenerative diseases involve inability to remove misfolded/aggregated proteins. The cellular organelle that often fai
klasskru [66]

Answer: c. proteasome

Explanation:

Proteasomes are extremely important multi-catalytic proteases and are involved in various cellular functions. The proteasome is an essential component of eukaryotic cells and is responsible for the ATP-dependent proteolytic degradation of most cellular proteins. They are present in the nucleus and cytosol and can represent up to 1% of total cell proteins. Proteasomes generally degrade proteins to small peptides, most of which are rapidly hydrolyzed by cytoplasmic exopeptidases. It catalyzes the rapid degradation of many enzymes, regulatory proteins, and eliminates abnormal proteins resulting from mutation or damaged proteins. The inability of this cellular organelle can lead to neurodegenerative diseases, such as Parkinson´s disease.

8 0
3 years ago
List the 8 characteristics of life
Vlad [161]
<span>    8 Characteristics of Life
1. Reproduction
2. Cells
3. Genetic Material
4. Evolution/Adaptation
5. Metabolism
6. Homeostasis 
7. Response to Stimuli
8. Growth/Development</span>
6 0
3 years ago
Technological advancement of the society causes energy crisis in different parts of the world. one group of scientists has devel
Leviafan [203]

Limited installation sites best describes a drawback in the scientists' plan because tidal energy is not present everywhere.

<h3>Describes a drawback in the scientists' plan?</h3>

The big disadvantage of tidal power is that there are limited installation sites for it. It is expensive as well as the turbines can adversely impact the surrounding ecosystem.

So we can conclude that limited installation sites best describes a drawback in the scientists' plan because tidal energy is not present everywhere.

Learn more about energy here: brainly.com/question/13881533

#SPJ1

5 0
2 years ago
Babies with very low or very high birth weight are less likely to survive. The graph shows the percentage of babies born at
professor190 [17]

Answer:

453

Explanation:

i have no clue

7 0
3 years ago
Read 2 more answers
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