What are homologous structures in different species evidence of?

A.) a common ancestor

B.) natural selection against a trait

C.) inheritance of acquired characteristics

D.) similar adaptations to their environment

In cellular respirAtion series of anaerobic chemical reactions in the cytoplasm that break Down glucose into pyruvic acid forms a net profit of two ATP molecules

How might an error during transcription affect the protein that is produced? A. The protein might be unable to function. B. The protein could become RNA polymerase. C. The protein might contain the wrong nucleic acids. D.

Reflection Questions - Article 1 5. Using the simulation, describe what happens to groundwater when pumping is lower or equal to the rate of infiltration. 6.

Where does the krebs cycle occur?

Which pair of statements best describes an essential amino acid? It is an amino acid that contains peptide bonds. An example is proline. It is an amino acid that contains nitrogen. An example is aspartic acid.

Which of the following is the path of a nerve impulse through a neuron?

9 Which is the basic functional unit of life? organism organ tissue cell

What is a good lab introduction? (Title, purpose, question, hypothesis, variables)

Why is it important to rid the cell of toxins? A. to maintain active transport O B. to maintain cellular division C. to maintain cellular respiration D. to maintain homeostasis

Which of the following are narrow blood vessels that restrict blood flow and have thin walls that allow gas exchange? Alveoli Veins Arteries Capillarie