What is analogous structure?

For centuries, people have been selectively breeding plants and animals to have certain desirable traits. Gregor Mendel predicted the existence of units of hereditary information that control those traits.

Which statement describes one way that RNA differs from DNA? 1) One is a protein, and the other is a nucleic acid. 2) They contain different five-carbon sugars and a different nitrogenous base.

Why is it important for DNA to be duplicated exactly before a cell divides?

If you have 200 grams of a radioactive sample, how many grams would be left after three half-lives? a. 200 b. 150 c. 50 d. 25

How does each type of organism get the energy it needs for its essential life processes?

All living things can be found in the biosphere atmosphere hydrosphere geosphere

Select the correct answer in a scientific investigation, what is the name for a prediction that can be tested? A conclusion evidence C hypothesis D verification Reset Next

Is it true genetic information is encoded in a molecule called DNA

Areas that have been set aside for the protection of threatened or endangered species are known as:

Briefly describe the steps of binary fission in the correct order.