Which is bigger 63 cm or 6 m

What are the four most abundant elements, by volume, in earths crust

Almost all the South American and Central American Indians have Rh-positive, type O blood. Note that there is no significant biological advantage to this blood type. Which mechanism best explains these facts

Which experiences higher average tempertures than the other biome a) taiga b) alpine tundra c) tropical seasonal forest d) temperate decidiuous forest

Describe biodiversity in terms of species

What must your skeletal muscles do in order to move? select one of the options below as your answer: a. engage their fibers slowlyb. twitch involuntarilyc. separate from the boned. contract and relax

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.