What is the substitute of u in tRNA

Which best describes the scientists who have contributed to our current body of knowledge? A. Almost all males B. People of all races and genders C. Almost all Europeans D. Currently only South Asians

Latex caulking should be cleaned up with which of these? a. Water b. Mineral spirits

Put the steps of primary succession in the correct order? Short grasses grow tall in the rich soil. When pioneer species die, nutrient are added to the soil, Lichens begin to grow on the surface of exposed rocks.

What would a cell need to use active transport instead of passive transport?

What cellular components are common to prokaryotic and eukaryotic cells?

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.