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Crank
3 years ago
15

Which statement best describes two paths carbon dioxide can take through the carbon cycle?What is a benefit of using renewable e

nergy resources?
Biology
1 answer:
Flura [38]3 years ago
5 0
Two paths carbon a benefit of using dioxide can take through renewable energy sources the carbon cycle what is
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What is the correct description of alcoholic fermentation?
fgiga [73]
The correct description of alcoholic fermentation is the anaerobic pathway carried out by yeasts in which simple sugars are converted toethanol<span> and carbon dioxide</span>
4 0
3 years ago
The single factor tested in an experiment is:
bearhunter [10]

Answer:

Explanation:

Experiment Basics

The experiment is the foundation of the scientific method, which is a systematic means of exploring the world around you. Although some experiments take place in laboratories, you could perform an experiment anywhere, at any time.

Take a look at the steps of the scientific method:

Make observations.

Formulate a hypothesis.

Design and conduct an experiment to test the hypothesis.

Evaluate the results of the experiment.

Accept or reject the hypothesis.

If necessary, make and test a new hypothesis.

Types of Experiments

Natural Experiments: A natural experiment also is called a quasi-experiment. A natural experiment involves making a prediction or forming a hypothesis and then gathering data by observing a system. The variables are not controlled in a natural experiment.

Controlled Experiments: Lab experiments are controlled experiments, although you can perform a controlled experiment outside of a lab setting! In a controlled experiment, you compare an experimental group with a control group. Ideally, these two groups are identical except for one variable, the independent variable.

Field Experiments: A field experiment may be either a natural experiment or a controlled experiment. It takes place in a real-world setting, rather than under lab conditions. For example, an experiment involving an animal in its natural habitat would be a field experiment.Simply put, a variable is anything you can change or control in an experiment. Common examples of variables include temperature, duration of the experiment, composition of a material, amount of light, etc. There are three kinds of variables in an experiment: controlled variables, independent variables and dependent variables.

Controlled variables, sometimes called constant variables are variables that are kept constant or unchanging. For example, if you are doing an experiment measuring the fizz released from different types of soda, you might control the size of the container so that all brands of soda would be in 12-oz cans. If you are performing an experiment on the effect of spraying plants with different chemicals, you would try to maintain the same pressure and maybe the same volume when spraying your plants.

The independent variable is the one factor that you are changing. It is one factor because usually in an experiment you try to change one thing at a time. This makes measurements and interpretation of the data much easier. If you are trying to determine whether heating water allows you to dissolve more sugar in the water then your independent variable is the temperature of the water. This is the variable you are purposely controlling.

The dependent variable is the variable you observe, to see whether it is affected by your independent variable. In the example where you are heating water to see if this affects the amount of sugar you can dissolve, the mass or volume of sugar (whichever you choose to measure) would be your dependent variable.

3 0
3 years ago
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Which approach to ecological investigations is illustrated by Biosphere 2? Defend your classification.
valentina_108 [34]

Answer:

The correct answer is : Biosphere 2 is a model based on the creation of a miniature ecosystem with life support systems.

Explanation:

Biosphere 2 is a small model of the biosphere, which is planned by scientists and engineers, that is closed and isolated from the outside world. In this study or research, the strategy for modeling is utilized to show the performance and conduct or behavior of a real biosphere.

Researchers made a model or an artificial situation that can uphold living things. It has a scaled-down model of a tropical forest, a grassland, a sea with a coral reef, a desert, and a mangrove biosphere. In these conditions, a wide range of animal varieties was contained. Furthermore, a group of eight individuals additionally fixed themselves inside it.

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3 years ago
Why do most red flowers get pollinated by birds?
pshichka [43]

Answer: red flowers are rich in nectar

Explanation:

7 0
3 years ago
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Q12. proteins are made of amino acids. what elements make up amino acids? look up the structures of the 20 amino acids in your t
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An amino acid is made up of atoms from several different elements. It has carbons, hydrogen, oxygen, nitrogen and sometimes sulfur atoms. 
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