A sugar, a phosphate group, and a nitrogen base form the building blocks of which organic compound?

carbohydrates

lipids

nucleic acids

proteins

All of the following are examples of physical properties except A. Liquid forming ice B. Forming new compounds C. Attraction toward a magnet D. Having a higher density than aluminum

A scientist claims that when a protein is denatured, it can be expected that its secondary structure will more likely be retained when compared to all other levels of protein structure.

If the student then examines some of the cells of the limp celery under the microscope, they would see that the cell contents a. Are unchanged b. Are slightly shriveled c. Fill the celery cavity d. Look larger than expected

List 3 negative impacts that overpopulation can have on a population!

Which organisms have produced the oldest fossil evidence? A. Vertebrates B. Protists C. Bacteria D. Plants

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.