Charles Darwin observed an orchid flower with very long, thin tubes that prevent many species from feeding on flower nectar and pollinating the flower. He offered a prediction that some species of pollinator would eventually be found that can feed and pollinate through the small tube. You decide to test Charles Darwin's proposal by placing nets over some orchids that allow small pollinators to enter, but prevent the large sphinx moth from entering. You then compare the number of seeds produced byplants with and without the nets. The seed production is

A. a dependent variable.

B. a standardized variable.

C. a hypothesis.

D. an independent variable.

E. a theory.

Question

Biology

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1 June, 21:56

Charles Darwin observed an orchid flower with very long, thin tubes that prevent many species from feeding on flower nectar and pollinating the flower. He offered a prediction that some species of pollinator would eventually be found that can feed and pollinate through the small tube. You decide to test Charles Darwin's proposal by placing nets over some orchids that allow small pollinators to enter, but prevent the large sphinx moth from entering. You then compare the number of seeds produced byplants with and without the nets. The seed production is

A. a dependent variable.

B. a standardized variable.

C. a hypothesis.

D. an independent variable.

E. a theory.

+1

Answers (1)

Know the Answer?

Chris · Answer 1

A. a dependent variable.

Explanation:

A scientific experiment contains three types of variables (factor or condition) in experiments: the dependent, independent and controlled variables.

The independent variable is the variables which can be changed or altered naturally or artificially like the sunlight, temperature whereas a dependent variable is a variable which depends on the independent variable and is the studied parameter of the experiment.

In the given question, since the production and the number of the seeds is influenced by the pollinator, therefore, a number of seeds will be considered the dependent variable.

Thus, Option-A is the correct answer.