C) The Earth is at least three billion years old. :)
Then they are the experimental group and the other group that wasn’t test is the control group because they can predict what will happen to the control group based on what test is given.
Answer:
Answer is C. Structures of animals that have different appearances and functions but seem to have evolved from the same body part in a common ancestor.
Explanation:
This can be found in Cat's leg and human arms.the structure do not need to look the same or perform the same functions.
The distance of the energy level from the nucleus is important in determining the corresponding peak position in the photoelectron spectrum because the closer the electron, the more interaction and attraction, and the more energy is needed to get rid of that electron.
Spectrum, in physics, is the intensity of mild because it varies with wavelength or frequency. An instrument designed for visual observation of spectra is called a spectroscope, and an instrument that photographs or maps spectra is a spectrograph.
A spectrum is defined as the characteristic wavelengths of electromagnetic radiation (or an element thereof) that are emitted or absorbed by way of an item or substance, atom, or molecule. Examples of a spectrum include the rainbow, the emission colors from the sun, and the infrared absorption wavelengths from a molecule.
Learn more about spectrum here: brainly.com/question/25847009
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Answer:
Mutualism
Explanation:
Both organisms that interact with each other both benefit from the interaction and no harming is involved.
