The mass of four stars relative to the sun is shown in the table below. Mass of Stars Star Mass (relative to the sun) L 10x M 2.5x N 0.5x O 15x Which star most likely has a negative value of absolute brightness? L M N O

What produces acid, oil, and an antibacterial substance to defend against pathogens?

What happens when ATP supplies energy for thin filaments in a muscle fiber to slide over the thick filaments? A. The muscle contracts. B. The muscle relaxes. C. The muscle both contracts and relaxes. D. The muscle neither contracts nor relaxes

The greenhouse effect is the

Species of oak trees periodically have years of large acorn production, followed by years of lower acorn amounts. in years of plenty, squirrel populations will experience an increase due to increased food availability of acorns.

What is the difference between bees and the snails

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.