Which is trait that is ancestral to all chordates?

A. A jaw bone

B. A notochord

C. An amniotic egg

D. Avertebral column

The goal of applied science is: To solve a question

The amount of energy needed for a reaction to take place is the activation energy. Enzymes can lower the activation energy of a chemical reaction. Which of the following describe a way that this could happen? A.

Discuss how scientists views on planetary paths have changed over time

Lung cancer occurs slightly more frequently in the right lung than in the left lung (about 53% versus 47% of the time). the most logical explanation for this is that

Increases the number of free hydrogen ions or protons (H+) in the inter-membrane space of the mitochondria (between the outer and inner membranes). Will this result in weight loss or gain?

What is the process of mountain building called

Sexual reproduction is the reproductive process that 1) keeps species from changing. 2) produces identical offspring. 3) causes mutations. 4) creates genetic variety.

About half of the forests that covered the earth in the early 1900s have been cut down. Discuss the impact this has on carbon dioxide levels in the atmosphere. Support your answer.

How manny amino acids are found in living organisms

A deletion of one base in the original segment of DNA is called a frameshift nutation what will happen to the newly synthesized protein as a result