Overtime organisms change. sometimes they change so much that descendants maybe completely different from their ancestors. what must happen for this process to occur?

When the muscle cell contracts a. The Z-lines become closer together b. The muscle shortens c. The Z-lines become farther apart d. a and b c. a, b and c

Does the thirst mechanism always underestimates fluid loss during work in the heat and after work ends?

Which of the following bacterial cells would best be able to survive an attack by an antibiotic? A) A bacterial cell that used its toxins to alter its DNA and resist the antibiotic.

Which sentence best describes the role of RNA? A. It converts carbohydrates into energy B. It bonds with Lipids. C. It is involved in making proteins. D. It is used to make DNA

Fatty acids with an odd number of carbons are modified by carboxylation of propionyl CoA to ultimately generate the 4-carbon TCA intermediate a) Citric acid b) Succinyl CoA c) Fumaric acid d) Oxalic Acid CoA e) Acetyl CoA

A small, dense planet made of rocky and metallic materials are called

What are some sources of oxygen

A longshore current flowing southwards along a coast will primarily transport sediments

How much does an elephant weigh?

Explain in your own words! The process of genetic engineering is?