Is the age of a frog a control variable?

1. What is the frog classified as?
2. What are control independent and dependent variables?
3. Is Heart Rate a dependent variable?
4. Is a frog a reptile or an amphibian?
5. Why is a frog an amphibian?
6. What are examples of control variables?
7. How do you identify a controlled variable?
8. Can independent variable be controlled?
9. What color is frog blood?
10. Do frogs eat?
11. Which group is the control group?
12. Is exercise a controlled variable?
13. How many variables can be tested in a controlled experiment?

What is the frog classified as?

Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts.

What are control independent and dependent variables?

Independent variable – the variable that is altered during a scientific experiment. Dependent variable – the variable being tested or measured during a scientific experiment. Controlled variable – a variable that is kept the same during a scientific experiment.

Is Heart Rate a dependent variable?

Physical activity CAUSES a person's heart rate to change. The change of heart rate is the DEPENDENT VARIABLE.

Is a frog a reptile or an amphibian?

Amphibians are frogs, toads, newts and salamanders. Most amphibians have complex life cycles with time on land and in the water. Their skin must stay moist to absorb oxygen and therefore lacks scales. Reptiles are turtles, snakes, lizards, alligators and crocodiles.

Why is a frog an amphibian?

The word "amphibian" comes from a Greek word that means "both lives." This is because frogs start their lives in the water and then live on land, according to Defenders of Wildlife.

What are examples of control variables?

Examples of Controlled Variables

Temperature is a common type of controlled variable. If a temperature is held constant during an experiment, it is controlled. Other examples of controlled variables could be an amount of light, using the same type of glassware, constant humidity, or duration of an experiment.

How do you identify a controlled variable?

Control variables = the type of plant used, the amount of fertiliser given, the time given to grow. And all other conditions kept the same between each plant e.g. the amount of water each plant receives, the temperature of the room, the amount of sunlight etc.

Can independent variable be controlled?

In a controlled experiment, an independent variable (the cause) is systematically manipulated and the dependent variable (the effect) is measured; any extraneous variables are controlled. The researcher can operationalize (i.e. define) the variables being studied so they can be objectivity measured.

What color is frog blood?

The red blood cells of frogs are larger than human red blood cells. They are also somewhat elliptical rather than round like human red blood cells.

Do frogs eat?

Frogs are truly generalist predators—they'll eat just about anything that comes their way in the wild. They'll eat spiders, grasshoppers, butterflies, and just about anything else that fits in their mouth. Aquatic frogs eat a variety of aquatic invertebrates.

Which group is the control group?

The control group is composed of participants who do not receive the experimental treatment. When conducting an experiment, these people are randomly assigned to be in this group. They also closely resemble the participants who are in the experimental group or the individuals who receive the treatment.

Is exercise a controlled variable?

This means you need to control certain variables, like how much sleep you get, the type of exercise you do during the day, stress levels, etc. Anything you do to keep these extraneous variables the same on both days are controlled variables.

How many variables can be tested in a controlled experiment?

A controlled experiment requires at least two variables: a manipulated variable and a response variable.